+++ /dev/null
---- a/src/Makefile
-+++ b/src/Makefile
-@@ -25,7 +25,7 @@ PLATS= aix ansi bsd freebsd generic linu
- LUA_A= liblua.a
- CORE_O= lapi.o lcode.o ldebug.o ldo.o ldump.o lfunc.o lgc.o llex.o lmem.o \
- lobject.o lopcodes.o lparser.o lstate.o lstring.o ltable.o ltm.o \
-- lundump.o lvm.o lzio.o
-+ lundump.o lvm.o lzio.o lnum.o
- LIB_O= lauxlib.o lbaselib.o ldblib.o liolib.o lmathlib.o loslib.o ltablib.o \
- lstrlib.o loadlib.o linit.o
-
-@@ -148,6 +148,7 @@ llex.o: llex.c lua.h luaconf.h ldo.h lob
- lmathlib.o: lmathlib.c lua.h luaconf.h lauxlib.h lualib.h
- lmem.o: lmem.c lua.h luaconf.h ldebug.h lstate.h lobject.h llimits.h \
- ltm.h lzio.h lmem.h ldo.h
-+lnum.o: lnum.c lua.h llex.h lnum.h
- loadlib.o: loadlib.c lua.h luaconf.h lauxlib.h lualib.h
- lobject.o: lobject.c lua.h luaconf.h ldo.h lobject.h llimits.h lstate.h \
- ltm.h lzio.h lmem.h lstring.h lgc.h lvm.h
-@@ -179,4 +180,18 @@ lzio.o: lzio.c lua.h luaconf.h llimits.h
- print.o: print.c ldebug.h lstate.h lua.h luaconf.h lobject.h llimits.h \
- ltm.h lzio.h lmem.h lopcodes.h lundump.h
-
-+luaconf.h: lnum_config.h
-+lapi.c: lnum.h
-+lauxlib.c: llimits.h
-+lbaselib.c: llimits.h lobject.h lapi.h
-+lcode.c: lnum.h
-+liolib.c: lnum.h llex.h
-+llex.c: lnum.h
-+lnum.h: lobject.h
-+lobject.c: llex.h lnum.h
-+ltable.c: lnum.h
-+lua.c: llimits.h
-+lvm.c: llex.h lnum.h
-+print.c: lnum.h
-+
- # (end of Makefile)
---- a/src/lapi.c
-+++ b/src/lapi.c
-@@ -28,7 +28,7 @@
- #include "ltm.h"
- #include "lundump.h"
- #include "lvm.h"
--
-+#include "lnum.h"
-
-
- const char lua_ident[] =
-@@ -241,12 +241,13 @@ LUA_API void lua_pushvalue (lua_State *L
-
- LUA_API int lua_type (lua_State *L, int idx) {
- StkId o = index2adr(L, idx);
-- return (o == luaO_nilobject) ? LUA_TNONE : ttype(o);
-+ return (o == luaO_nilobject) ? LUA_TNONE : ttype_ext(o);
- }
-
-
- LUA_API const char *lua_typename (lua_State *L, int t) {
- UNUSED(L);
-+ lua_assert( t!= LUA_TINT );
- return (t == LUA_TNONE) ? "no value" : luaT_typenames[t];
- }
-
-@@ -264,6 +265,14 @@ LUA_API int lua_isnumber (lua_State *L,
- }
-
-
-+LUA_API int lua_isinteger (lua_State *L, int idx) {
-+ TValue tmp;
-+ lua_Integer dum;
-+ const TValue *o = index2adr(L, idx);
-+ return tonumber(o,&tmp) && (ttisint(o) || tt_integer_valued(o,&dum));
-+}
-+
-+
- LUA_API int lua_isstring (lua_State *L, int idx) {
- int t = lua_type(L, idx);
- return (t == LUA_TSTRING || t == LUA_TNUMBER);
-@@ -309,31 +318,66 @@ LUA_API int lua_lessthan (lua_State *L,
- }
-
-
--
- LUA_API lua_Number lua_tonumber (lua_State *L, int idx) {
- TValue n;
- const TValue *o = index2adr(L, idx);
-- if (tonumber(o, &n))
-+ if (tonumber(o, &n)) {
-+#ifdef LNUM_COMPLEX
-+ if (nvalue_img(o) != 0)
-+ luaG_runerror(L, "expecting a real number");
-+#endif
- return nvalue(o);
-- else
-- return 0;
-+ }
-+ return 0;
- }
-
-
- LUA_API lua_Integer lua_tointeger (lua_State *L, int idx) {
- TValue n;
-+ /* Lua 5.1 documented behaviour is to return nonzero for non-integer:
-+ * "If the number is not an integer, it is truncated in some non-specified way."
-+ * I would suggest to change this, to return 0 for anything that would
-+ * not fit in 'lua_Integer'.
-+ */
-+#ifdef LUA_COMPAT_TOINTEGER
-+ /* Lua 5.1 compatible */
- const TValue *o = index2adr(L, idx);
- if (tonumber(o, &n)) {
-- lua_Integer res;
-- lua_Number num = nvalue(o);
-- lua_number2integer(res, num);
-- return res;
-+ lua_Integer i;
-+ lua_Number d;
-+ if (ttisint(o)) return ivalue(o);
-+ d= nvalue_fast(o);
-+# ifdef LNUM_COMPLEX
-+ if (nvalue_img_fast(o) != 0)
-+ luaG_runerror(L, "expecting a real number");
-+# endif
-+ lua_number2integer(i, d);
-+ return i;
- }
-- else
-- return 0;
-+#else
-+ /* New suggestion */
-+ const TValue *o = index2adr(L, idx);
-+ if (tonumber(o, &n)) {
-+ lua_Integer i;
-+ if (ttisint(o)) return ivalue(o);
-+ if (tt_integer_valued(o,&i)) return i;
-+ }
-+#endif
-+ return 0;
- }
-
-
-+#ifdef LNUM_COMPLEX
-+LUA_API lua_Complex lua_tocomplex (lua_State *L, int idx) {
-+ TValue tmp;
-+ const TValue *o = index2adr(L, idx);
-+ if (tonumber(o, &tmp))
-+ return nvalue_complex(o);
-+ return 0;
-+}
-+#endif
-+
-+
- LUA_API int lua_toboolean (lua_State *L, int idx) {
- const TValue *o = index2adr(L, idx);
- return !l_isfalse(o);
-@@ -364,6 +408,7 @@ LUA_API size_t lua_objlen (lua_State *L,
- case LUA_TSTRING: return tsvalue(o)->len;
- case LUA_TUSERDATA: return uvalue(o)->len;
- case LUA_TTABLE: return luaH_getn(hvalue(o));
-+ case LUA_TINT:
- case LUA_TNUMBER: {
- size_t l;
- lua_lock(L); /* `luaV_tostring' may create a new string */
-@@ -426,6 +471,8 @@ LUA_API void lua_pushnil (lua_State *L)
- }
-
-
-+/* 'lua_pushnumber()' may lose accuracy on integers, 'lua_pushinteger' will not.
-+ */
- LUA_API void lua_pushnumber (lua_State *L, lua_Number n) {
- lua_lock(L);
- setnvalue(L->top, n);
-@@ -434,12 +481,22 @@ LUA_API void lua_pushnumber (lua_State *
- }
-
-
--LUA_API void lua_pushinteger (lua_State *L, lua_Integer n) {
-+LUA_API void lua_pushinteger (lua_State *L, lua_Integer i) {
-+ lua_lock(L);
-+ setivalue(L->top, i);
-+ api_incr_top(L);
-+ lua_unlock(L);
-+}
-+
-+
-+#ifdef LNUM_COMPLEX
-+LUA_API void lua_pushcomplex (lua_State *L, lua_Complex v) {
- lua_lock(L);
-- setnvalue(L->top, cast_num(n));
-+ setnvalue_complex( L->top, v );
- api_incr_top(L);
- lua_unlock(L);
- }
-+#endif
-
-
- LUA_API void lua_pushlstring (lua_State *L, const char *s, size_t len) {
-@@ -569,7 +626,7 @@ LUA_API void lua_rawgeti (lua_State *L,
- lua_lock(L);
- o = index2adr(L, idx);
- api_check(L, ttistable(o));
-- setobj2s(L, L->top, luaH_getnum(hvalue(o), n));
-+ setobj2s(L, L->top, luaH_getint(hvalue(o), n));
- api_incr_top(L);
- lua_unlock(L);
- }
-@@ -597,6 +654,9 @@ LUA_API int lua_getmetatable (lua_State
- case LUA_TUSERDATA:
- mt = uvalue(obj)->metatable;
- break;
-+ case LUA_TINT:
-+ mt = G(L)->mt[LUA_TNUMBER];
-+ break;
- default:
- mt = G(L)->mt[ttype(obj)];
- break;
-@@ -687,7 +747,7 @@ LUA_API void lua_rawseti (lua_State *L,
- api_checknelems(L, 1);
- o = index2adr(L, idx);
- api_check(L, ttistable(o));
-- setobj2t(L, luaH_setnum(L, hvalue(o), n), L->top-1);
-+ setobj2t(L, luaH_setint(L, hvalue(o), n), L->top-1);
- luaC_barriert(L, hvalue(o), L->top-1);
- L->top--;
- lua_unlock(L);
-@@ -721,7 +781,7 @@ LUA_API int lua_setmetatable (lua_State
- break;
- }
- default: {
-- G(L)->mt[ttype(obj)] = mt;
-+ G(L)->mt[ttype_ext(obj)] = mt;
- break;
- }
- }
-@@ -1085,3 +1145,32 @@ LUA_API const char *lua_setupvalue (lua_
- return name;
- }
-
-+
-+/* Help function for 'luaB_tonumber()', avoids multiple str->number
-+ * conversions for Lua "tonumber()".
-+ *
-+ * Also pushes floating point numbers with integer value as integer, which
-+ * can be used by 'tonumber()' in scripts to bring values back to integer
-+ * realm.
-+ *
-+ * Note: The 'back to integer realm' is _not_ to affect string conversions:
-+ * 'tonumber("4294967295.1")' should give a floating point value, although
-+ * the value would be 4294967296 (and storable in int64 realm).
-+ */
-+int lua_pushvalue_as_number (lua_State *L, int idx)
-+{
-+ const TValue *o = index2adr(L, idx);
-+ TValue tmp;
-+ lua_Integer i;
-+ if (ttisnumber(o)) {
-+ if ( (!ttisint(o)) && tt_integer_valued(o,&i)) {
-+ lua_pushinteger( L, i );
-+ return 1;
-+ }
-+ } else if (!tonumber(o, &tmp)) {
-+ return 0;
-+ }
-+ if (ttisint(o)) lua_pushinteger( L, ivalue(o) );
-+ else lua_pushnumber( L, nvalue_fast(o) );
-+ return 1;
-+}
---- a/src/lapi.h
-+++ b/src/lapi.h
-@@ -13,4 +13,6 @@
-
- LUAI_FUNC void luaA_pushobject (lua_State *L, const TValue *o);
-
-+int lua_pushvalue_as_number (lua_State *L, int idx);
-+
- #endif
---- a/src/lauxlib.c
-+++ b/src/lauxlib.c
-@@ -23,7 +23,7 @@
- #include "lua.h"
-
- #include "lauxlib.h"
--
-+#include "llimits.h"
-
- #define FREELIST_REF 0 /* free list of references */
-
-@@ -66,7 +66,7 @@ LUALIB_API int luaL_typerror (lua_State
-
-
- static void tag_error (lua_State *L, int narg, int tag) {
-- luaL_typerror(L, narg, lua_typename(L, tag));
-+ luaL_typerror(L, narg, tag==LUA_TINT ? "integer" : lua_typename(L, tag));
- }
-
-
-@@ -188,8 +188,8 @@ LUALIB_API lua_Number luaL_optnumber (lu
-
- LUALIB_API lua_Integer luaL_checkinteger (lua_State *L, int narg) {
- lua_Integer d = lua_tointeger(L, narg);
-- if (d == 0 && !lua_isnumber(L, narg)) /* avoid extra test when d is not 0 */
-- tag_error(L, narg, LUA_TNUMBER);
-+ if (d == 0 && !lua_isinteger(L, narg)) /* avoid extra test when d is not 0 */
-+ tag_error(L, narg, LUA_TINT);
- return d;
- }
-
-@@ -200,6 +200,16 @@ LUALIB_API lua_Integer luaL_optinteger (
- }
-
-
-+#ifdef LNUM_COMPLEX
-+LUALIB_API lua_Complex luaL_checkcomplex (lua_State *L, int narg) {
-+ lua_Complex c = lua_tocomplex(L, narg);
-+ if (c == 0 && !lua_isnumber(L, narg)) /* avoid extra test when c is not 0 */
-+ tag_error(L, narg, LUA_TNUMBER);
-+ return c;
-+}
-+#endif
-+
-+
- LUALIB_API int luaL_getmetafield (lua_State *L, int obj, const char *event) {
- if (!lua_getmetatable(L, obj)) /* no metatable? */
- return 0;
---- a/src/lauxlib.h
-+++ b/src/lauxlib.h
-@@ -57,6 +57,12 @@ LUALIB_API lua_Number (luaL_optnumber) (
- LUALIB_API lua_Integer (luaL_checkinteger) (lua_State *L, int numArg);
- LUALIB_API lua_Integer (luaL_optinteger) (lua_State *L, int nArg,
- lua_Integer def);
-+#define luaL_checkint32(L,narg) ((int)luaL_checkinteger(L,narg))
-+#define luaL_optint32(L,narg,def) ((int)luaL_optinteger(L,narg,def))
-+
-+#ifdef LNUM_COMPLEX
-+ LUALIB_API lua_Complex (luaL_checkcomplex) (lua_State *L, int narg);
-+#endif
-
- LUALIB_API void (luaL_checkstack) (lua_State *L, int sz, const char *msg);
- LUALIB_API void (luaL_checktype) (lua_State *L, int narg, int t);
---- a/src/lbaselib.c
-+++ b/src/lbaselib.c
-@@ -18,7 +18,9 @@
-
- #include "lauxlib.h"
- #include "lualib.h"
--
-+#include "llimits.h"
-+#include "lobject.h"
-+#include "lapi.h"
-
-
-
-@@ -54,20 +56,25 @@ static int luaB_tonumber (lua_State *L)
- int base = luaL_optint(L, 2, 10);
- if (base == 10) { /* standard conversion */
- luaL_checkany(L, 1);
-- if (lua_isnumber(L, 1)) {
-- lua_pushnumber(L, lua_tonumber(L, 1));
-+ if (lua_isnumber(L, 1)) { /* numeric string, or a number */
-+ lua_pushvalue_as_number(L,1); /* API extension (not to lose accuracy here) */
- return 1;
-- }
-+ }
- }
- else {
- const char *s1 = luaL_checkstring(L, 1);
- char *s2;
-- unsigned long n;
-+ unsigned LUA_INTEGER n;
- luaL_argcheck(L, 2 <= base && base <= 36, 2, "base out of range");
-- n = strtoul(s1, &s2, base);
-+ n = lua_str2ul(s1, &s2, base);
- if (s1 != s2) { /* at least one valid digit? */
- while (isspace((unsigned char)(*s2))) s2++; /* skip trailing spaces */
- if (*s2 == '\0') { /* no invalid trailing characters? */
-+
-+ /* Push as number, there needs to be separate 'luaB_tointeger' for
-+ * when the caller wants to preserve the bits (matters if unsigned
-+ * values are used).
-+ */
- lua_pushnumber(L, (lua_Number)n);
- return 1;
- }
-@@ -144,7 +151,7 @@ static int luaB_setfenv (lua_State *L) {
- luaL_checktype(L, 2, LUA_TTABLE);
- getfunc(L, 0);
- lua_pushvalue(L, 2);
-- if (lua_isnumber(L, 1) && lua_tonumber(L, 1) == 0) {
-+ if (lua_isnumber(L, 1) && lua_tointeger(L, 1) == 0) {
- /* change environment of current thread */
- lua_pushthread(L);
- lua_insert(L, -2);
-@@ -209,7 +216,7 @@ static int luaB_collectgarbage (lua_Stat
- return 1;
- }
- default: {
-- lua_pushnumber(L, res);
-+ lua_pushinteger(L, res);
- return 1;
- }
- }
-@@ -631,6 +638,8 @@ static void base_open (lua_State *L) {
- luaL_register(L, "_G", base_funcs);
- lua_pushliteral(L, LUA_VERSION);
- lua_setglobal(L, "_VERSION"); /* set global _VERSION */
-+ lua_pushliteral(L, LUA_LNUM);
-+ lua_setglobal(L, "_LNUM"); /* "[complex] double|float|ldouble int32|int64" */
- /* `ipairs' and `pairs' need auxliliary functions as upvalues */
- auxopen(L, "ipairs", luaB_ipairs, ipairsaux);
- auxopen(L, "pairs", luaB_pairs, luaB_next);
---- a/src/lcode.c
-+++ b/src/lcode.c
-@@ -22,13 +22,18 @@
- #include "lopcodes.h"
- #include "lparser.h"
- #include "ltable.h"
-+#include "lnum.h"
-
-
- #define hasjumps(e) ((e)->t != (e)->f)
-
--
- static int isnumeral(expdesc *e) {
-- return (e->k == VKNUM && e->t == NO_JUMP && e->f == NO_JUMP);
-+ int ek=
-+#ifdef LNUM_COMPLEX
-+ (e->k == VKNUM2) ||
-+#endif
-+ (e->k == VKINT) || (e->k == VKNUM);
-+ return (ek && e->t == NO_JUMP && e->f == NO_JUMP);
- }
-
-
-@@ -231,12 +236,16 @@ static int addk (FuncState *fs, TValue *
- TValue *idx = luaH_set(L, fs->h, k);
- Proto *f = fs->f;
- int oldsize = f->sizek;
-- if (ttisnumber(idx)) {
-- lua_assert(luaO_rawequalObj(&fs->f->k[cast_int(nvalue(idx))], v));
-- return cast_int(nvalue(idx));
-+ if (ttype(idx)==LUA_TNUMBER) {
-+ luai_normalize(idx);
-+ lua_assert( ttype(idx)==LUA_TINT ); /* had no fraction */
-+ }
-+ if (ttisint(idx)) {
-+ lua_assert(luaO_rawequalObj(&fs->f->k[ivalue(idx)], v));
-+ return cast_int(ivalue(idx));
- }
- else { /* constant not found; create a new entry */
-- setnvalue(idx, cast_num(fs->nk));
-+ setivalue(idx, fs->nk);
- luaM_growvector(L, f->k, fs->nk, f->sizek, TValue,
- MAXARG_Bx, "constant table overflow");
- while (oldsize < f->sizek) setnilvalue(&f->k[oldsize++]);
-@@ -261,6 +270,21 @@ int luaK_numberK (FuncState *fs, lua_Num
- }
-
-
-+int luaK_integerK (FuncState *fs, lua_Integer r) {
-+ TValue o;
-+ setivalue(&o, r);
-+ return addk(fs, &o, &o);
-+}
-+
-+
-+#ifdef LNUM_COMPLEX
-+static int luaK_imagK (FuncState *fs, lua_Number r) {
-+ TValue o;
-+ setnvalue_complex(&o, r*I);
-+ return addk(fs, &o, &o);
-+}
-+#endif
-+
- static int boolK (FuncState *fs, int b) {
- TValue o;
- setbvalue(&o, b);
-@@ -359,6 +383,16 @@ static void discharge2reg (FuncState *fs
- luaK_codeABx(fs, OP_LOADK, reg, luaK_numberK(fs, e->u.nval));
- break;
- }
-+ case VKINT: {
-+ luaK_codeABx(fs, OP_LOADK, reg, luaK_integerK(fs, e->u.ival));
-+ break;
-+ }
-+#ifdef LNUM_COMPLEX
-+ case VKNUM2: {
-+ luaK_codeABx(fs, OP_LOADK, reg, luaK_imagK(fs, e->u.nval));
-+ break;
-+ }
-+#endif
- case VRELOCABLE: {
- Instruction *pc = &getcode(fs, e);
- SETARG_A(*pc, reg);
-@@ -444,6 +478,10 @@ void luaK_exp2val (FuncState *fs, expdes
- int luaK_exp2RK (FuncState *fs, expdesc *e) {
- luaK_exp2val(fs, e);
- switch (e->k) {
-+#ifdef LNUM_COMPLEX
-+ case VKNUM2:
-+#endif
-+ case VKINT:
- case VKNUM:
- case VTRUE:
- case VFALSE:
-@@ -451,6 +489,10 @@ int luaK_exp2RK (FuncState *fs, expdesc
- if (fs->nk <= MAXINDEXRK) { /* constant fit in RK operand? */
- e->u.s.info = (e->k == VNIL) ? nilK(fs) :
- (e->k == VKNUM) ? luaK_numberK(fs, e->u.nval) :
-+ (e->k == VKINT) ? luaK_integerK(fs, e->u.ival) :
-+#ifdef LNUM_COMPLEX
-+ (e->k == VKNUM2) ? luaK_imagK(fs, e->u.nval) :
-+#endif
- boolK(fs, (e->k == VTRUE));
- e->k = VK;
- return RKASK(e->u.s.info);
-@@ -540,7 +582,10 @@ void luaK_goiftrue (FuncState *fs, expde
- int pc; /* pc of last jump */
- luaK_dischargevars(fs, e);
- switch (e->k) {
-- case VK: case VKNUM: case VTRUE: {
-+#ifdef LNUM_COMPLEX
-+ case VKNUM2:
-+#endif
-+ case VKINT: case VK: case VKNUM: case VTRUE: {
- pc = NO_JUMP; /* always true; do nothing */
- break;
- }
-@@ -598,7 +643,10 @@ static void codenot (FuncState *fs, expd
- e->k = VTRUE;
- break;
- }
-- case VK: case VKNUM: case VTRUE: {
-+#ifdef LNUM_COMPLEX
-+ case VKNUM2:
-+#endif
-+ case VKINT: case VK: case VKNUM: case VTRUE: {
- e->k = VFALSE;
- break;
- }
-@@ -634,25 +682,70 @@ void luaK_indexed (FuncState *fs, expdes
-
- static int constfolding (OpCode op, expdesc *e1, expdesc *e2) {
- lua_Number v1, v2, r;
-+ int vkres= VKNUM;
- if (!isnumeral(e1) || !isnumeral(e2)) return 0;
-- v1 = e1->u.nval;
-- v2 = e2->u.nval;
-+
-+ /* real and imaginary parts don't mix. */
-+#ifdef LNUM_COMPLEX
-+ if (e1->k == VKNUM2) {
-+ if ((op != OP_UNM) && (e2->k != VKNUM2)) return 0;
-+ vkres= VKNUM2; }
-+ else if (e2->k == VKNUM2) { return 0; }
-+#endif
-+ if ((e1->k == VKINT) && (e2->k == VKINT)) {
-+ lua_Integer i1= e1->u.ival, i2= e2->u.ival;
-+ lua_Integer rr;
-+ int done= 0;
-+ /* Integer/integer calculations (may end up producing floating point) */
-+ switch (op) {
-+ case OP_ADD: done= try_addint( &rr, i1, i2 ); break;
-+ case OP_SUB: done= try_subint( &rr, i1, i2 ); break;
-+ case OP_MUL: done= try_mulint( &rr, i1, i2 ); break;
-+ case OP_DIV: done= try_divint( &rr, i1, i2 ); break;
-+ case OP_MOD: done= try_modint( &rr, i1, i2 ); break;
-+ case OP_POW: done= try_powint( &rr, i1, i2 ); break;
-+ case OP_UNM: done= try_unmint( &rr, i1 ); break;
-+ default: done= 0; break;
-+ }
-+ if (done) {
-+ e1->u.ival = rr; /* remained within integer range */
-+ return 1;
-+ }
-+ }
-+ v1 = (e1->k == VKINT) ? ((lua_Number)e1->u.ival) : e1->u.nval;
-+ v2 = (e2->k == VKINT) ? ((lua_Number)e2->u.ival) : e2->u.nval;
-+
- switch (op) {
- case OP_ADD: r = luai_numadd(v1, v2); break;
- case OP_SUB: r = luai_numsub(v1, v2); break;
-- case OP_MUL: r = luai_nummul(v1, v2); break;
-+ case OP_MUL:
-+#ifdef LNUM_COMPLEX
-+ if (vkres==VKNUM2) return 0; /* leave to runtime (could do here, but not worth it?) */
-+#endif
-+ r = luai_nummul(v1, v2); break;
- case OP_DIV:
- if (v2 == 0) return 0; /* do not attempt to divide by 0 */
-- r = luai_numdiv(v1, v2); break;
-+#ifdef LNUM_COMPLEX
-+ if (vkres==VKNUM2) return 0; /* leave to runtime */
-+#endif
-+ r = luai_numdiv(v1, v2); break;
- case OP_MOD:
- if (v2 == 0) return 0; /* do not attempt to divide by 0 */
-+#ifdef LNUM_COMPLEX
-+ if (vkres==VKNUM2) return 0; /* leave to runtime */
-+#endif
- r = luai_nummod(v1, v2); break;
-- case OP_POW: r = luai_numpow(v1, v2); break;
-+ case OP_POW:
-+#ifdef LNUM_COMPLEX
-+ if (vkres==VKNUM2) return 0; /* leave to runtime */
-+#endif
-+ r = luai_numpow(v1, v2); break;
- case OP_UNM: r = luai_numunm(v1); break;
- case OP_LEN: return 0; /* no constant folding for 'len' */
- default: lua_assert(0); r = 0; break;
- }
- if (luai_numisnan(r)) return 0; /* do not attempt to produce NaN */
-+ e1->k = cast(expkind,vkres);
- e1->u.nval = r;
- return 1;
- }
-@@ -696,7 +789,8 @@ static void codecomp (FuncState *fs, OpC
-
- void luaK_prefix (FuncState *fs, UnOpr op, expdesc *e) {
- expdesc e2;
-- e2.t = e2.f = NO_JUMP; e2.k = VKNUM; e2.u.nval = 0;
-+ e2.t = e2.f = NO_JUMP; e2.k = VKINT; e2.u.ival = 0;
-+
- switch (op) {
- case OPR_MINUS: {
- if (!isnumeral(e))
---- a/src/lcode.h
-+++ b/src/lcode.h
-@@ -71,6 +71,6 @@ LUAI_FUNC void luaK_prefix (FuncState *f
- LUAI_FUNC void luaK_infix (FuncState *fs, BinOpr op, expdesc *v);
- LUAI_FUNC void luaK_posfix (FuncState *fs, BinOpr op, expdesc *v1, expdesc *v2);
- LUAI_FUNC void luaK_setlist (FuncState *fs, int base, int nelems, int tostore);
--
-+LUAI_FUNC int luaK_integerK (FuncState *fs, lua_Integer r);
-
- #endif
---- a/src/ldebug.c
-+++ b/src/ldebug.c
-@@ -183,7 +183,7 @@ static void collectvalidlines (lua_State
- int *lineinfo = f->l.p->lineinfo;
- int i;
- for (i=0; i<f->l.p->sizelineinfo; i++)
-- setbvalue(luaH_setnum(L, t, lineinfo[i]), 1);
-+ setbvalue(luaH_setint(L, t, lineinfo[i]), 1);
- sethvalue(L, L->top, t);
- }
- incr_top(L);
-@@ -566,7 +566,7 @@ static int isinstack (CallInfo *ci, cons
-
- void luaG_typeerror (lua_State *L, const TValue *o, const char *op) {
- const char *name = NULL;
-- const char *t = luaT_typenames[ttype(o)];
-+ const char *t = luaT_typenames[ttype_ext(o)];
- const char *kind = (isinstack(L->ci, o)) ?
- getobjname(L, L->ci, cast_int(o - L->base), &name) :
- NULL;
-@@ -594,8 +594,8 @@ void luaG_aritherror (lua_State *L, cons
-
-
- int luaG_ordererror (lua_State *L, const TValue *p1, const TValue *p2) {
-- const char *t1 = luaT_typenames[ttype(p1)];
-- const char *t2 = luaT_typenames[ttype(p2)];
-+ const char *t1 = luaT_typenames[ttype_ext(p1)];
-+ const char *t2 = luaT_typenames[ttype_ext(p2)];
- if (t1[2] == t2[2])
- luaG_runerror(L, "attempt to compare two %s values", t1);
- else
---- a/src/ldo.c
-+++ b/src/ldo.c
-@@ -219,9 +219,9 @@ static StkId adjust_varargs (lua_State *
- luaC_checkGC(L);
- htab = luaH_new(L, nvar, 1); /* create `arg' table */
- for (i=0; i<nvar; i++) /* put extra arguments into `arg' table */
-- setobj2n(L, luaH_setnum(L, htab, i+1), L->top - nvar + i);
-+ setobj2n(L, luaH_setint(L, htab, i+1), L->top - nvar + i);
- /* store counter in field `n' */
-- setnvalue(luaH_setstr(L, htab, luaS_newliteral(L, "n")), cast_num(nvar));
-+ setivalue(luaH_setstr(L, htab, luaS_newliteral(L, "n")), nvar);
- }
- #endif
- /* move fixed parameters to final position */
---- a/src/ldump.c
-+++ b/src/ldump.c
-@@ -52,6 +52,11 @@ static void DumpNumber(lua_Number x, Dum
- DumpVar(x,D);
- }
-
-+static void DumpInteger(lua_Integer x, DumpState* D)
-+{
-+ DumpVar(x,D);
-+}
-+
- static void DumpVector(const void* b, int n, size_t size, DumpState* D)
- {
- DumpInt(n,D);
-@@ -93,8 +98,11 @@ static void DumpConstants(const Proto* f
- DumpChar(bvalue(o),D);
- break;
- case LUA_TNUMBER:
-- DumpNumber(nvalue(o),D);
-+ DumpNumber(nvalue_fast(o),D);
- break;
-+ case LUA_TINT:
-+ DumpInteger(ivalue(o),D);
-+ break;
- case LUA_TSTRING:
- DumpString(rawtsvalue(o),D);
- break;
---- a/src/liolib.c
-+++ b/src/liolib.c
-@@ -9,6 +9,7 @@
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
-+#include <ctype.h>
-
- #define liolib_c
- #define LUA_LIB
-@@ -18,7 +19,8 @@
- #include "lauxlib.h"
- #include "lualib.h"
-
--
-+#include "lnum.h"
-+#include "llex.h"
-
- #define IO_INPUT 1
- #define IO_OUTPUT 2
-@@ -269,6 +271,13 @@ static int io_lines (lua_State *L) {
- ** =======================================================
- */
-
-+/*
-+* Many problems if we intend the same 'n' format specifier (see 'file:read()')
-+* to work for both FP and integer numbers, without losing their accuracy. So
-+* we don't. 'n' reads numbers as floating points, 'i' as integers. Old code
-+* remains valid, but won't provide full integer accuracy (this only matters
-+* with float FP and/or 64-bit integers).
-+*/
-
- static int read_number (lua_State *L, FILE *f) {
- lua_Number d;
-@@ -279,6 +288,43 @@ static int read_number (lua_State *L, FI
- else return 0; /* read fails */
- }
-
-+static int read_integer (lua_State *L, FILE *f) {
-+ lua_Integer i;
-+ if (fscanf(f, LUA_INTEGER_SCAN, &i) == 1) {
-+ lua_pushinteger(L, i);
-+ return 1;
-+ }
-+ else return 0; /* read fails */
-+}
-+
-+#ifdef LNUM_COMPLEX
-+static int read_complex (lua_State *L, FILE *f) {
-+ /* NNN / NNNi / NNN+MMMi / NNN-MMMi */
-+ lua_Number a,b;
-+ if (fscanf(f, LUA_NUMBER_SCAN, &a) == 1) {
-+ int c=fgetc(f);
-+ switch(c) {
-+ case 'i':
-+ lua_pushcomplex(L, a*I);
-+ return 1;
-+ case '+':
-+ case '-':
-+ /* "i" is consumed if at the end; just 'NNN+MMM' will most likely
-+ * behave as if "i" was there? (TBD: test)
-+ */
-+ if (fscanf(f, LUA_NUMBER_SCAN "i", &b) == 1) {
-+ lua_pushcomplex(L, a+ (c=='+' ? b:-b)*I);
-+ return 1;
-+ }
-+ }
-+ ungetc( c,f );
-+ lua_pushnumber(L,a); /*real part only*/
-+ return 1;
-+ }
-+ return 0; /* read fails */
-+}
-+#endif
-+
-
- static int test_eof (lua_State *L, FILE *f) {
- int c = getc(f);
-@@ -352,6 +398,14 @@ static int g_read (lua_State *L, FILE *f
- case 'n': /* number */
- success = read_number(L, f);
- break;
-+ case 'i': /* integer (full accuracy) */
-+ success = read_integer(L, f);
-+ break;
-+#ifdef LNUM_COMPLEX
-+ case 'c': /* complex */
-+ success = read_complex(L, f);
-+ break;
-+#endif
- case 'l': /* line */
- success = read_line(L, f);
- break;
-@@ -412,9 +466,10 @@ static int g_write (lua_State *L, FILE *
- int status = 1;
- for (; nargs--; arg++) {
- if (lua_type(L, arg) == LUA_TNUMBER) {
-- /* optimization: could be done exactly as for strings */
-- status = status &&
-- fprintf(f, LUA_NUMBER_FMT, lua_tonumber(L, arg)) > 0;
-+ if (lua_isinteger(L,arg))
-+ status = status && fprintf(f, LUA_INTEGER_FMT, lua_tointeger(L, arg)) > 0;
-+ else
-+ status = status && fprintf(f, LUA_NUMBER_FMT, lua_tonumber(L, arg)) > 0;
- }
- else {
- size_t l;
-@@ -457,7 +512,7 @@ static int f_setvbuf (lua_State *L) {
- static const char *const modenames[] = {"no", "full", "line", NULL};
- FILE *f = tofile(L);
- int op = luaL_checkoption(L, 2, NULL, modenames);
-- lua_Integer sz = luaL_optinteger(L, 3, LUAL_BUFFERSIZE);
-+ size_t sz = luaL_optint32(L, 3, LUAL_BUFFERSIZE);
- int res = setvbuf(f, NULL, mode[op], sz);
- return pushresult(L, res == 0, NULL);
- }
---- a/src/llex.c
-+++ b/src/llex.c
-@@ -22,6 +22,7 @@
- #include "lstring.h"
- #include "ltable.h"
- #include "lzio.h"
-+#include "lnum.h"
-
-
-
-@@ -34,13 +35,17 @@
-
-
- /* ORDER RESERVED */
--const char *const luaX_tokens [] = {
-+static const char *const luaX_tokens [] = {
- "and", "break", "do", "else", "elseif",
- "end", "false", "for", "function", "if",
- "in", "local", "nil", "not", "or", "repeat",
- "return", "then", "true", "until", "while",
- "..", "...", "==", ">=", "<=", "~=",
- "<number>", "<name>", "<string>", "<eof>",
-+ "<integer>",
-+#ifdef LNUM_COMPLEX
-+ "<number2>",
-+#endif
- NULL
- };
-
-@@ -90,7 +95,11 @@ static const char *txtToken (LexState *l
- switch (token) {
- case TK_NAME:
- case TK_STRING:
-+ case TK_INT:
- case TK_NUMBER:
-+#ifdef LNUM_COMPLEX
-+ case TK_NUMBER2:
-+#endif
- save(ls, '\0');
- return luaZ_buffer(ls->buff);
- default:
-@@ -173,23 +182,27 @@ static void buffreplace (LexState *ls, c
- if (p[n] == from) p[n] = to;
- }
-
--
--static void trydecpoint (LexState *ls, SemInfo *seminfo) {
-+/* TK_NUMBER (/ TK_NUMBER2) */
-+static int trydecpoint (LexState *ls, SemInfo *seminfo) {
- /* format error: try to update decimal point separator */
- struct lconv *cv = localeconv();
- char old = ls->decpoint;
-+ int ret;
- ls->decpoint = (cv ? cv->decimal_point[0] : '.');
- buffreplace(ls, old, ls->decpoint); /* try updated decimal separator */
-- if (!luaO_str2d(luaZ_buffer(ls->buff), &seminfo->r)) {
-+ ret= luaO_str2d(luaZ_buffer(ls->buff), &seminfo->r, NULL);
-+ if (!ret) {
- /* format error with correct decimal point: no more options */
- buffreplace(ls, ls->decpoint, '.'); /* undo change (for error message) */
- luaX_lexerror(ls, "malformed number", TK_NUMBER);
- }
-+ return ret;
- }
-
-
--/* LUA_NUMBER */
--static void read_numeral (LexState *ls, SemInfo *seminfo) {
-+/* TK_NUMBER / TK_INT (/TK_NUMBER2) */
-+static int read_numeral (LexState *ls, SemInfo *seminfo) {
-+ int ret;
- lua_assert(isdigit(ls->current));
- do {
- save_and_next(ls);
-@@ -200,8 +213,9 @@ static void read_numeral (LexState *ls,
- save_and_next(ls);
- save(ls, '\0');
- buffreplace(ls, '.', ls->decpoint); /* follow locale for decimal point */
-- if (!luaO_str2d(luaZ_buffer(ls->buff), &seminfo->r)) /* format error? */
-- trydecpoint(ls, seminfo); /* try to update decimal point separator */
-+ ret= luaO_str2d(luaZ_buffer(ls->buff), &seminfo->r, &seminfo->i );
-+ if (!ret) return trydecpoint(ls, seminfo); /* try to update decimal point separator */
-+ return ret;
- }
-
-
-@@ -329,6 +343,7 @@ static void read_string (LexState *ls, i
- }
-
-
-+/* char / TK_* */
- static int llex (LexState *ls, SemInfo *seminfo) {
- luaZ_resetbuffer(ls->buff);
- for (;;) {
-@@ -400,8 +415,7 @@ static int llex (LexState *ls, SemInfo *
- }
- else if (!isdigit(ls->current)) return '.';
- else {
-- read_numeral(ls, seminfo);
-- return TK_NUMBER;
-+ return read_numeral(ls, seminfo);
- }
- }
- case EOZ: {
-@@ -414,8 +428,7 @@ static int llex (LexState *ls, SemInfo *
- continue;
- }
- else if (isdigit(ls->current)) {
-- read_numeral(ls, seminfo);
-- return TK_NUMBER;
-+ return read_numeral(ls, seminfo);
- }
- else if (isalpha(ls->current) || ls->current == '_') {
- /* identifier or reserved word */
---- a/src/llex.h
-+++ b/src/llex.h
-@@ -29,19 +29,22 @@ enum RESERVED {
- TK_RETURN, TK_THEN, TK_TRUE, TK_UNTIL, TK_WHILE,
- /* other terminal symbols */
- TK_CONCAT, TK_DOTS, TK_EQ, TK_GE, TK_LE, TK_NE, TK_NUMBER,
-- TK_NAME, TK_STRING, TK_EOS
-+ TK_NAME, TK_STRING, TK_EOS, TK_INT
-+#ifdef LNUM_COMPLEX
-+ , TK_NUMBER2 /* imaginary constants: Ni */
-+#endif
- };
-
- /* number of reserved words */
- #define NUM_RESERVED (cast(int, TK_WHILE-FIRST_RESERVED+1))
-
-
--/* array with token `names' */
--LUAI_DATA const char *const luaX_tokens [];
--
--
-+/* SemInfo is a local data structure of 'llex.c', used for carrying a string
-+ * or a number. A separate token (TK_*) will tell, how to interpret the data.
-+ */
- typedef union {
- lua_Number r;
-+ lua_Integer i;
- TString *ts;
- } SemInfo; /* semantics information */
-
---- a/src/llimits.h
-+++ b/src/llimits.h
-@@ -49,6 +49,7 @@ typedef LUAI_USER_ALIGNMENT_T L_Umaxalig
-
- /* result of a `usual argument conversion' over lua_Number */
- typedef LUAI_UACNUMBER l_uacNumber;
-+typedef LUAI_UACINTEGER l_uacInteger;
-
-
- /* internal assertions for in-house debugging */
-@@ -80,7 +81,6 @@ typedef LUAI_UACNUMBER l_uacNumber;
- #define cast_int(i) cast(int, (i))
-
-
--
- /*
- ** type for virtual-machine instructions
- ** must be an unsigned with (at least) 4 bytes (see details in lopcodes.h)
---- a/src/lmathlib.c
-+++ b/src/lmathlib.c
-@@ -4,7 +4,6 @@
- ** See Copyright Notice in lua.h
- */
-
--
- #include <stdlib.h>
- #include <math.h>
-
-@@ -16,113 +15,210 @@
- #include "lauxlib.h"
- #include "lualib.h"
-
-+/* 'luai_vectpow()' as a replacement for 'cpow()'. Defined in the header; we
-+ * don't intrude the code libs internal functions.
-+ */
-+#ifdef LNUM_COMPLEX
-+# include "lnum.h"
-+#endif
-
- #undef PI
--#define PI (3.14159265358979323846)
--#define RADIANS_PER_DEGREE (PI/180.0)
--
-+#ifdef LNUM_FLOAT
-+# define PI (3.14159265358979323846F)
-+#elif defined(M_PI)
-+# define PI M_PI
-+#else
-+# define PI (3.14159265358979323846264338327950288)
-+#endif
-+#define RADIANS_PER_DEGREE (PI/180)
-
-+#undef HUGE
-+#ifdef LNUM_FLOAT
-+# define HUGE HUGE_VALF
-+#elif defined(LNUM_LDOUBLE)
-+# define HUGE HUGE_VALL
-+#else
-+# define HUGE HUGE_VAL
-+#endif
-
- static int math_abs (lua_State *L) {
-- lua_pushnumber(L, fabs(luaL_checknumber(L, 1)));
-+#ifdef LNUM_COMPLEX
-+ lua_pushnumber(L, _LF(cabs) (luaL_checkcomplex(L,1)));
-+#else
-+ lua_pushnumber(L, _LF(fabs) (luaL_checknumber(L, 1)));
-+#endif
- return 1;
- }
-
- static int math_sin (lua_State *L) {
-- lua_pushnumber(L, sin(luaL_checknumber(L, 1)));
-+#ifdef LNUM_COMPLEX
-+ lua_pushcomplex(L, _LF(csin) (luaL_checkcomplex(L,1)));
-+#else
-+ lua_pushnumber(L, _LF(sin) (luaL_checknumber(L, 1)));
-+#endif
- return 1;
- }
-
- static int math_sinh (lua_State *L) {
-- lua_pushnumber(L, sinh(luaL_checknumber(L, 1)));
-+#ifdef LNUM_COMPLEX
-+ lua_pushcomplex(L, _LF(csinh) (luaL_checkcomplex(L,1)));
-+#else
-+ lua_pushnumber(L, _LF(sinh) (luaL_checknumber(L, 1)));
-+#endif
- return 1;
- }
-
- static int math_cos (lua_State *L) {
-- lua_pushnumber(L, cos(luaL_checknumber(L, 1)));
-+#ifdef LNUM_COMPLEX
-+ lua_pushcomplex(L, _LF(ccos) (luaL_checkcomplex(L,1)));
-+#else
-+ lua_pushnumber(L, _LF(cos) (luaL_checknumber(L, 1)));
-+#endif
- return 1;
- }
-
- static int math_cosh (lua_State *L) {
-- lua_pushnumber(L, cosh(luaL_checknumber(L, 1)));
-+#ifdef LNUM_COMPLEX
-+ lua_pushcomplex(L, _LF(ccosh) (luaL_checkcomplex(L,1)));
-+#else
-+ lua_pushnumber(L, _LF(cosh) (luaL_checknumber(L, 1)));
-+#endif
- return 1;
- }
-
- static int math_tan (lua_State *L) {
-- lua_pushnumber(L, tan(luaL_checknumber(L, 1)));
-+#ifdef LNUM_COMPLEX
-+ lua_pushcomplex(L, _LF(ctan) (luaL_checkcomplex(L,1)));
-+#else
-+ lua_pushnumber(L, _LF(tan) (luaL_checknumber(L, 1)));
-+#endif
- return 1;
- }
-
- static int math_tanh (lua_State *L) {
-- lua_pushnumber(L, tanh(luaL_checknumber(L, 1)));
-+#ifdef LNUM_COMPLEX
-+ lua_pushcomplex(L, _LF(ctanh) (luaL_checkcomplex(L,1)));
-+#else
-+ lua_pushnumber(L, _LF(tanh) (luaL_checknumber(L, 1)));
-+#endif
- return 1;
- }
-
- static int math_asin (lua_State *L) {
-- lua_pushnumber(L, asin(luaL_checknumber(L, 1)));
-+#ifdef LNUM_COMPLEX
-+ lua_pushcomplex(L, _LF(casin) (luaL_checkcomplex(L,1)));
-+#else
-+ lua_pushnumber(L, _LF(asin) (luaL_checknumber(L, 1)));
-+#endif
- return 1;
- }
-
- static int math_acos (lua_State *L) {
-- lua_pushnumber(L, acos(luaL_checknumber(L, 1)));
-+#ifdef LNUM_COMPLEX
-+ lua_pushcomplex(L, _LF(cacos) (luaL_checkcomplex(L,1)));
-+#else
-+ lua_pushnumber(L, _LF(acos) (luaL_checknumber(L, 1)));
-+#endif
- return 1;
- }
-
- static int math_atan (lua_State *L) {
-- lua_pushnumber(L, atan(luaL_checknumber(L, 1)));
-+#ifdef LNUM_COMPLEX
-+ lua_pushcomplex(L, _LF(catan) (luaL_checkcomplex(L,1)));
-+#else
-+ lua_pushnumber(L, _LF(atan) (luaL_checknumber(L, 1)));
-+#endif
- return 1;
- }
-
- static int math_atan2 (lua_State *L) {
-- lua_pushnumber(L, atan2(luaL_checknumber(L, 1), luaL_checknumber(L, 2)));
-+ /* scalars only */
-+ lua_pushnumber(L, _LF(atan2) (luaL_checknumber(L, 1), luaL_checknumber(L, 2)));
- return 1;
- }
-
- static int math_ceil (lua_State *L) {
-- lua_pushnumber(L, ceil(luaL_checknumber(L, 1)));
-+#ifdef LNUM_COMPLEX
-+ lua_Complex v= luaL_checkcomplex(L, 1);
-+ lua_pushcomplex(L, _LF(ceil) (_LF(creal)(v)) + _LF(ceil) (_LF(cimag)(v))*I);
-+#else
-+ lua_pushnumber(L, _LF(ceil) (luaL_checknumber(L, 1)));
-+#endif
- return 1;
- }
-
- static int math_floor (lua_State *L) {
-- lua_pushnumber(L, floor(luaL_checknumber(L, 1)));
-+#ifdef LNUM_COMPLEX
-+ lua_Complex v= luaL_checkcomplex(L, 1);
-+ lua_pushcomplex(L, _LF(floor) (_LF(creal)(v)) + _LF(floor) (_LF(cimag)(v))*I);
-+#else
-+ lua_pushnumber(L, _LF(floor) (luaL_checknumber(L, 1)));
-+#endif
- return 1;
- }
-
--static int math_fmod (lua_State *L) {
-- lua_pushnumber(L, fmod(luaL_checknumber(L, 1), luaL_checknumber(L, 2)));
-+static int math_fmod (lua_State *L) {
-+ /* scalars only */
-+ lua_pushnumber(L, _LF(fmod) (luaL_checknumber(L, 1), luaL_checknumber(L, 2)));
- return 1;
- }
-
- static int math_modf (lua_State *L) {
-- double ip;
-- double fp = modf(luaL_checknumber(L, 1), &ip);
-+ /* scalars only */
-+ lua_Number ip;
-+ lua_Number fp = _LF(modf) (luaL_checknumber(L, 1), &ip);
- lua_pushnumber(L, ip);
- lua_pushnumber(L, fp);
- return 2;
- }
-
- static int math_sqrt (lua_State *L) {
-- lua_pushnumber(L, sqrt(luaL_checknumber(L, 1)));
-+#ifdef LNUM_COMPLEX
-+ lua_pushcomplex(L, _LF(csqrt) (luaL_checkcomplex(L,1)));
-+#else
-+ lua_pushnumber(L, _LF(sqrt) (luaL_checknumber(L, 1)));
-+#endif
- return 1;
- }
-
- static int math_pow (lua_State *L) {
-- lua_pushnumber(L, pow(luaL_checknumber(L, 1), luaL_checknumber(L, 2)));
-+#ifdef LNUM_COMPLEX
-+ /* C99 'cpow' gives somewhat inaccurate results (i.e. (-1)^2 = -1+1.2246467991474e-16i).
-+ * 'luai_vectpow' smoothens such, reusing it is the reason we need to #include "lnum.h".
-+ */
-+ lua_pushcomplex(L, luai_vectpow(luaL_checkcomplex(L,1), luaL_checkcomplex(L,2)));
-+#else
-+ lua_pushnumber(L, _LF(pow) (luaL_checknumber(L, 1), luaL_checknumber(L, 2)));
-+#endif
- return 1;
- }
-
- static int math_log (lua_State *L) {
-- lua_pushnumber(L, log(luaL_checknumber(L, 1)));
-+#ifdef LNUM_COMPLEX
-+ lua_pushcomplex(L, _LF(clog) (luaL_checkcomplex(L,1)));
-+#else
-+ lua_pushnumber(L, _LF(log) (luaL_checknumber(L, 1)));
-+#endif
- return 1;
- }
-
- static int math_log10 (lua_State *L) {
-- lua_pushnumber(L, log10(luaL_checknumber(L, 1)));
-+#ifdef LNUM_COMPLEX
-+ /* Not in standard <complex.h> , but easy to calculate: log_a(x) = log_b(x) / log_b(a)
-+ */
-+ lua_pushcomplex(L, _LF(clog) (luaL_checkcomplex(L,1)) / _LF(log) (10));
-+#else
-+ lua_pushnumber(L, _LF(log10) (luaL_checknumber(L, 1)));
-+#endif
- return 1;
- }
-
- static int math_exp (lua_State *L) {
-- lua_pushnumber(L, exp(luaL_checknumber(L, 1)));
-+#ifdef LNUM_COMPLEX
-+ lua_pushcomplex(L, _LF(cexp) (luaL_checkcomplex(L,1)));
-+#else
-+ lua_pushnumber(L, _LF(exp) (luaL_checknumber(L, 1)));
-+#endif
- return 1;
- }
-
-@@ -138,19 +234,20 @@ static int math_rad (lua_State *L) {
-
- static int math_frexp (lua_State *L) {
- int e;
-- lua_pushnumber(L, frexp(luaL_checknumber(L, 1), &e));
-+ lua_pushnumber(L, _LF(frexp) (luaL_checknumber(L, 1), &e));
- lua_pushinteger(L, e);
- return 2;
- }
-
- static int math_ldexp (lua_State *L) {
-- lua_pushnumber(L, ldexp(luaL_checknumber(L, 1), luaL_checkint(L, 2)));
-+ lua_pushnumber(L, _LF(ldexp) (luaL_checknumber(L, 1), luaL_checkint(L, 2)));
- return 1;
- }
-
-
-
- static int math_min (lua_State *L) {
-+ /* scalars only */
- int n = lua_gettop(L); /* number of arguments */
- lua_Number dmin = luaL_checknumber(L, 1);
- int i;
-@@ -165,6 +262,7 @@ static int math_min (lua_State *L) {
-
-
- static int math_max (lua_State *L) {
-+ /* scalars only */
- int n = lua_gettop(L); /* number of arguments */
- lua_Number dmax = luaL_checknumber(L, 1);
- int i;
-@@ -182,25 +280,20 @@ static int math_random (lua_State *L) {
- /* the `%' avoids the (rare) case of r==1, and is needed also because on
- some systems (SunOS!) `rand()' may return a value larger than RAND_MAX */
- lua_Number r = (lua_Number)(rand()%RAND_MAX) / (lua_Number)RAND_MAX;
-- switch (lua_gettop(L)) { /* check number of arguments */
-- case 0: { /* no arguments */
-- lua_pushnumber(L, r); /* Number between 0 and 1 */
-- break;
-- }
-- case 1: { /* only upper limit */
-- int u = luaL_checkint(L, 1);
-- luaL_argcheck(L, 1<=u, 1, "interval is empty");
-- lua_pushnumber(L, floor(r*u)+1); /* int between 1 and `u' */
-- break;
-- }
-- case 2: { /* lower and upper limits */
-- int l = luaL_checkint(L, 1);
-- int u = luaL_checkint(L, 2);
-- luaL_argcheck(L, l<=u, 2, "interval is empty");
-- lua_pushnumber(L, floor(r*(u-l+1))+l); /* int between `l' and `u' */
-- break;
-- }
-- default: return luaL_error(L, "wrong number of arguments");
-+ int n= lua_gettop(L); /* number of arguments */
-+ if (n==0) { /* no arguments: range [0,1) */
-+ lua_pushnumber(L, r);
-+ } else if (n<=2) { /* int range [1,u] or [l,u] */
-+ int l= n==1 ? 1 : luaL_checkint(L, 1);
-+ int u = luaL_checkint(L, n);
-+ int tmp;
-+ lua_Number d;
-+ luaL_argcheck(L, l<=u, n, "interval is empty");
-+ d= _LF(floor)(r*(u-l+1));
-+ lua_number2int(tmp,d);
-+ lua_pushinteger(L, l+tmp);
-+ } else {
-+ return luaL_error(L, "wrong number of arguments");
- }
- return 1;
- }
-@@ -211,6 +304,66 @@ static int math_randomseed (lua_State *L
- return 0;
- }
-
-+/*
-+* Lua 5.1 does not have acosh, asinh, atanh for scalars (not ANSI C)
-+*/
-+#if __STDC_VERSION__ >= 199901L
-+static int math_acosh (lua_State *L) {
-+# ifdef LNUM_COMPLEX
-+ lua_pushcomplex(L, _LF(cacosh) (luaL_checkcomplex(L,1)));
-+# else
-+ lua_pushnumber(L, _LF(acosh) (luaL_checknumber(L,1)));
-+# endif
-+ return 1;
-+}
-+static int math_asinh (lua_State *L) {
-+# ifdef LNUM_COMPLEX
-+ lua_pushcomplex(L, _LF(casinh) (luaL_checkcomplex(L,1)));
-+# else
-+ lua_pushnumber(L, _LF(asinh) (luaL_checknumber(L,1)));
-+# endif
-+ return 1;
-+}
-+static int math_atanh (lua_State *L) {
-+# ifdef LNUM_COMPLEX
-+ lua_pushcomplex(L, _LF(catanh) (luaL_checkcomplex(L,1)));
-+# else
-+ lua_pushnumber(L, _LF(atanh) (luaL_checknumber(L,1)));
-+# endif
-+ return 1;
-+}
-+#endif
-+
-+/*
-+ * C99 complex functions, not covered above.
-+*/
-+#ifdef LNUM_COMPLEX
-+static int math_arg (lua_State *L) {
-+ lua_pushnumber(L, _LF(carg) (luaL_checkcomplex(L,1)));
-+ return 1;
-+}
-+
-+static int math_imag (lua_State *L) {
-+ lua_pushnumber(L, _LF(cimag) (luaL_checkcomplex(L,1)));
-+ return 1;
-+}
-+
-+static int math_real (lua_State *L) {
-+ lua_pushnumber(L, _LF(creal) (luaL_checkcomplex(L,1)));
-+ return 1;
-+}
-+
-+static int math_conj (lua_State *L) {
-+ lua_pushcomplex(L, _LF(conj) (luaL_checkcomplex(L,1)));
-+ return 1;
-+}
-+
-+static int math_proj (lua_State *L) {
-+ lua_pushcomplex(L, _LF(cproj) (luaL_checkcomplex(L,1)));
-+ return 1;
-+}
-+#endif
-+
-
- static const luaL_Reg mathlib[] = {
- {"abs", math_abs},
-@@ -241,6 +394,18 @@ static const luaL_Reg mathlib[] = {
- {"sqrt", math_sqrt},
- {"tanh", math_tanh},
- {"tan", math_tan},
-+#if __STDC_VERSION__ >= 199901L
-+ {"acosh", math_acosh},
-+ {"asinh", math_asinh},
-+ {"atanh", math_atanh},
-+#endif
-+#ifdef LNUM_COMPLEX
-+ {"arg", math_arg},
-+ {"imag", math_imag},
-+ {"real", math_real},
-+ {"conj", math_conj},
-+ {"proj", math_proj},
-+#endif
- {NULL, NULL}
- };
-
-@@ -252,8 +417,10 @@ LUALIB_API int luaopen_math (lua_State *
- luaL_register(L, LUA_MATHLIBNAME, mathlib);
- lua_pushnumber(L, PI);
- lua_setfield(L, -2, "pi");
-- lua_pushnumber(L, HUGE_VAL);
-+ lua_pushnumber(L, HUGE);
- lua_setfield(L, -2, "huge");
-+ lua_pushinteger(L, LUA_INTEGER_MAX );
-+ lua_setfield(L, -2, "hugeint");
- #if defined(LUA_COMPAT_MOD)
- lua_getfield(L, -1, "fmod");
- lua_setfield(L, -2, "mod");
---- /dev/null
-+++ b/src/lnum.c
-@@ -0,0 +1,312 @@
-+/*
-+** $Id: lnum.c,v ... $
-+** Internal number model
-+** See Copyright Notice in lua.h
-+*/
-+
-+#include <stdlib.h>
-+#include <math.h>
-+#include <ctype.h>
-+#include <string.h>
-+#include <stdio.h>
-+#include <errno.h>
-+
-+#define lnum_c
-+#define LUA_CORE
-+
-+#include "lua.h"
-+#include "llex.h"
-+#include "lnum.h"
-+
-+/*
-+** lua_real2str converts a (non-complex) number to a string.
-+** lua_str2real converts a string to a (non-complex) number.
-+*/
-+#define lua_real2str(s,n) sprintf((s), LUA_NUMBER_FMT, (n))
-+
-+/*
-+* Note: Only 'strtod()' is part of ANSI C; others are C99 and
-+* may need '--std=c99' compiler setting (at least on Ubuntu 7.10).
-+*
-+* Visual C++ 2008 Express does not have 'strtof()', nor 'strtold()'.
-+* References to '_strtold()' exist but don't compile. It seems best
-+* to leave Windows users with DOUBLE only (or compile with MinGW).
-+*
-+* In practise, using '(long double)strtod' is a risky thing, since
-+* it will cause accuracy loss in reading in numbers, and such losses
-+* will pile up in later processing. Get a real 'strtold()' or don't
-+* use that mode at all.
-+*/
-+#ifdef LNUM_DOUBLE
-+# define lua_str2real strtod
-+#elif defined(LNUM_FLOAT)
-+# define lua_str2real strtof
-+#elif defined(LNUM_LDOUBLE)
-+# define lua_str2real strtold
-+#endif
-+
-+#define lua_integer2str(s,v) sprintf((s), LUA_INTEGER_FMT, (v))
-+
-+/* 's' is expected to be LUAI_MAXNUMBER2STR long (enough for any number)
-+*/
-+void luaO_num2buf( char *s, const TValue *o )
-+{
-+ lua_Number n;
-+ lua_assert( ttisnumber(o) );
-+
-+ /* Reason to handle integers differently is not only speed, but accuracy as
-+ * well. We want to make any integer tostring() without roundings, at all.
-+ */
-+ if (ttisint(o)) {
-+ lua_integer2str( s, ivalue(o) );
-+ return;
-+ }
-+ n= nvalue_fast(o);
-+ lua_real2str(s, n);
-+
-+#ifdef LNUM_COMPLEX
-+ lua_Number n2= nvalue_img_fast(o);
-+ if (n2!=0) { /* Postfix with +-Ni */
-+ int re0= (n == 0);
-+ char *s2= re0 ? s : strchr(s,'\0');
-+ if ((!re0) && (n2>0)) *s2++= '+';
-+ lua_real2str( s2, n2 );
-+ strcat(s2,"i");
-+ }
-+#endif
-+}
-+
-+/*
-+* If a LUA_TNUMBER has integer value, give it.
-+*/
-+int /*bool*/ tt_integer_valued( const TValue *o, lua_Integer *ref ) {
-+ lua_Number d;
-+ lua_Integer i;
-+
-+ lua_assert( ttype(o)==LUA_TNUMBER );
-+ lua_assert( ref );
-+#ifdef LNUM_COMPLEX
-+ if (nvalue_img_fast(o)!=0) return 0;
-+#endif
-+ d= nvalue_fast(o);
-+ lua_number2integer(i, d);
-+ if (cast_num(i) == d) {
-+ *ref= i; return 1;
-+ }
-+ return 0;
-+}
-+
-+/*
-+ * Lua 5.1.3 (using 'strtod()') allows 0x+hex but not 0+octal. This is good,
-+ * and we should NOT use 'autobase' 0 with 'strtoul[l]()' for this reason.
-+ *
-+ * Lua 5.1.3 allows '0x...' numbers to overflow and lose precision; this is not
-+ * good. On Visual C++ 2008, 'strtod()' does not even take them in. Better to
-+ * require hex values to fit 'lua_Integer' or give an error that they don't?
-+ *
-+ * Full hex range (0 .. 0xff..ff) is stored as integers, not to lose any bits.
-+ * Numerical value of 0xff..ff will be -1, if used in calculations.
-+ *
-+ * Returns: TK_INT for a valid integer, '*endptr_ref' updated
-+ * TK_NUMBER for seemingly numeric, to be parsed as floating point
-+ * 0 for bad characters, not a number (or '0x' out of range)
-+ */
-+static int luaO_str2i (const char *s, lua_Integer *res, char **endptr_ref) {
-+ char *endptr;
-+ /* 'v' gets ULONG_MAX on possible overflow (which is > LUA_INTEGER_MAX);
-+ * we don't have to check 'errno' here.
-+ */
-+ unsigned LUA_INTEGER v= lua_str2ul(s, &endptr, 10);
-+ if (endptr == s) return 0; /* nothing numeric */
-+ if (v==0 && *endptr=='x') {
-+ errno= 0; /* needs to be set, 'strtoul[l]' does not clear it */
-+ v= lua_str2ul(endptr+1, &endptr, 16); /* retry as hex, unsigned range */
-+ if (errno==ERANGE) { /* clamped to 0xff..ff */
-+#if (defined(LNUM_INT32) && !defined(LNUM_FLOAT)) || defined(LNUM_LDOUBLE)
-+ return TK_NUMBER; /* Allow to be read as floating point (has more integer range) */
-+#else
-+ return 0; /* Reject the number */
-+#endif
-+ }
-+ } else if ((v > LUA_INTEGER_MAX) || (*endptr && (!isspace(*endptr)))) {
-+ return TK_NUMBER; /* not in signed range, or has '.', 'e' etc. trailing */
-+ }
-+ *res= (lua_Integer)v;
-+ *endptr_ref= endptr;
-+ return TK_INT;
-+}
-+
-+/* 0 / TK_NUMBER / TK_INT (/ TK_NUMBER2) */
-+int luaO_str2d (const char *s, lua_Number *res_n, lua_Integer *res_i) {
-+ char *endptr;
-+ int ret= TK_NUMBER;
-+ /* Check integers first, if caller is allowing.
-+ * If 'res2'==NULL, they're only looking for floating point.
-+ */
-+ if (res_i) {
-+ ret= luaO_str2i(s,res_i,&endptr);
-+ if (ret==0) return 0;
-+ }
-+ if (ret==TK_NUMBER) {
-+ lua_assert(res_n);
-+ /* Note: Visual C++ 2008 Express 'strtod()' does not read in "0x..."
-+ * numbers; it will read '0' and spit 'x' as endptr.
-+ * This means hex constants not fitting in 'lua_Integer' won't
-+ * be read in at all. What to do?
-+ */
-+ *res_n = lua_str2real(s, &endptr);
-+ if (endptr == s) return 0; /* conversion failed */
-+ /* Visual C++ 2008 'strtod()' does not allow "0x..." input. */
-+#if defined(_MSC_VER) && !defined(LNUM_FLOAT) && !defined(LNUM_INT64)
-+ if (*res_n==0 && *endptr=='x') {
-+ /* Hex constant too big for 'lua_Integer' but that could fit in 'lua_Number'
-+ * integer bits
-+ */
-+ unsigned __int64 v= _strtoui64( s, &endptr, 16 );
-+ /* We just let > 64 bit values be clamped to _UI64_MAX (MSDN does not say 'errno'==ERANGE would be set) */
-+ *res_n= cast_num(v);
-+ if (*res_n != v) return 0; /* Would have lost accuracy */
-+ }
-+#endif
-+#ifdef LNUM_COMPLEX
-+ if (*endptr == 'i') { endptr++; ret= TK_NUMBER2; }
-+#endif
-+ }
-+ if (*endptr) {
-+ while (isspace(cast(unsigned char, *endptr))) endptr++;
-+ if (*endptr) return 0; /* invalid trail */
-+ }
-+ return ret;
-+}
-+
-+
-+/* Functions for finding out, when integer operations remain in range
-+ * (and doing them).
-+ */
-+int try_addint( lua_Integer *r, lua_Integer ib, lua_Integer ic ) {
-+ lua_Integer v= ib+ic; /* may overflow */
-+ if (ib>0 && ic>0) { if (v < 0) return 0; /*overflow, use floats*/ }
-+ else if (ib<0 && ic<0) { if (v >= 0) return 0; }
-+ *r= v;
-+ return 1;
-+}
-+
-+int try_subint( lua_Integer *r, lua_Integer ib, lua_Integer ic ) {
-+ lua_Integer v= ib-ic; /* may overflow */
-+ if (ib>=0 && ic<0) { if (v < 0) return 0; /*overflow, use floats*/ }
-+ else if (ib<0 && ic>0) { if (v >= 0) return 0; }
-+ *r= v;
-+ return 1;
-+}
-+
-+int try_mulint( lua_Integer *r, lua_Integer ib, lua_Integer ic ) {
-+ if (ib!=LUA_INTEGER_MIN && ic!=LUA_INTEGER_MIN) {
-+ lua_Integer b= luai_abs(ib), c= luai_abs(ic);
-+ if ( (ib==0) || (LUA_INTEGER_MAX/b >= c) ) {
-+ *r= ib*ic; /* no overflow */
-+ return 1;
-+ }
-+ } else if (ib==0 || ic==0) {
-+ *r= 0; return 1;
-+ }
-+
-+ /* Result can be LUA_INTEGER_MIN; if it is, calculating it using floating
-+ * point will not cause accuracy loss.
-+ */
-+ if ( luai_nummul( cast_num(ib), cast_num(ic) ) == LUA_INTEGER_MIN ) {
-+ *r= LUA_INTEGER_MIN;
-+ return 1;
-+ }
-+ return 0;
-+}
-+
-+int try_divint( lua_Integer *r, lua_Integer ib, lua_Integer ic ) {
-+ /* N/0: leave to float side, to give an error
-+ */
-+ if (ic==0) return 0;
-+
-+ /* N/LUA_INTEGER_MIN: always non-integer results, or 0 or +1
-+ */
-+ if (ic==LUA_INTEGER_MIN) {
-+ if (ib==LUA_INTEGER_MIN) { *r=1; return 1; }
-+ if (ib==0) { *r=0; return 1; }
-+
-+ /* LUA_INTEGER_MIN (-2^31|63)/N: calculate using float side (either the division
-+ * causes non-integer results, or there is no accuracy loss in int->fp->int
-+ * conversions (N=2,4,8,..,256 and N=2^30,2^29,..2^23).
-+ */
-+ } else if (ib==LUA_INTEGER_MIN) {
-+ lua_Number d= luai_numdiv( cast_num(LUA_INTEGER_MIN), cast_num(ic) );
-+ lua_Integer i; lua_number2integer(i,d);
-+ if (cast_num(i)==d) { *r= i; return 1; }
-+
-+ } else {
-+ /* Note: We _can_ use ANSI C mod here, even on negative values, since
-+ * we only test for == 0 (the sign would be implementation dependent).
-+ */
-+ if (ib%ic == 0) { *r= ib/ic; return 1; }
-+ }
-+
-+ return 0;
-+}
-+
-+int try_modint( lua_Integer *r, lua_Integer ib, lua_Integer ic ) {
-+ if (ic!=0) {
-+ /* ANSI C can be trusted when b%c==0, or when values are non-negative.
-+ * b - (floor(b/c) * c)
-+ * -->
-+ * + +: b - (b/c) * c (b % c can be used)
-+ * - -: b - (b/c) * c (b % c could work, but not defined by ANSI C)
-+ * 0 -: b - (b/c) * c (=0, b % c could work, but not defined by ANSI C)
-+ * - +: b - (b/c-1) * c (when b!=-c)
-+ * + -: b - (b/c-1) * c (when b!=-c)
-+ *
-+ * o MIN%MIN ends up 0, via overflow in calcs but that does not matter.
-+ * o MIN%MAX ends up MAX-1 (and other such numbers), also after overflow,
-+ * but that does not matter, results do.
-+ */
-+ lua_Integer v= ib % ic;
-+ if ( v!=0 && (ib<0 || ic<0) ) {
-+ v= ib - ((ib/ic) - ((ib<=0 && ic<0) ? 0:1)) * ic;
-+ }
-+ /* Result should always have same sign as 2nd argument. (PIL2) */
-+ lua_assert( (v<0) ? (ic<0) : (v>0) ? (ic>0) : 1 );
-+ *r= v;
-+ return 1;
-+ }
-+ return 0; /* let float side return NaN */
-+}
-+
-+int try_powint( lua_Integer *r, lua_Integer ib, lua_Integer ic ) {
-+
-+ /* In FLOAT/INT32 or FLOAT|DOUBLE/INT64 modes, calculating integer powers
-+ * via FP realm may lose accuracy (i.e. 7^11 = 1977326743, which fits int32
-+ * but not 23-bit float mantissa).
-+ *
-+ * The current solution is dumb, but it works and uses little code. Use of
-+ * integer powers is not anticipated to be very frequent (apart from 2^x,
-+ * which is separately optimized).
-+ */
-+ if (ib==0) *r=0;
-+ else if (ic<0) return 0; /* FP realm */
-+ else if (ib==2 && ic < (int)sizeof(lua_Integer)*8-1) *r= ((lua_Integer)1)<<ic; /* 1,2,4,...2^30 | 2^62 optimization */
-+ else if (ic==0) *r=1;
-+ else if (luai_abs(ib)==1) *r= (ic%2) ? ib:1;
-+ else {
-+ lua_Integer x= ib;
-+ while( --ic ) {
-+ if (!try_mulint( &x, x, ib ))
-+ return 0; /* FP realm */
-+ }
-+ *r= x;
-+ }
-+ return 1;
-+}
-+
-+int try_unmint( lua_Integer *r, lua_Integer ib ) {
-+ /* Negating LUA_INTEGER_MIN leaves the range. */
-+ if ( ib != LUA_INTEGER_MIN )
-+ { *r= -ib; return 1; }
-+ return 0;
-+}
-+
---- /dev/null
-+++ b/src/lnum.h
-@@ -0,0 +1,116 @@
-+/*
-+** $Id: lnum.h,v ... $
-+** Internal Number model
-+** See Copyright Notice in lua.h
-+*/
-+
-+#ifndef lnum_h
-+#define lnum_h
-+
-+#include <math.h>
-+
-+#include "lobject.h"
-+
-+/*
-+** The luai_num* macros define the primitive operations over 'lua_Number's
-+** (not 'lua_Integer's, not 'lua_Complex').
-+*/
-+#define luai_numadd(a,b) ((a)+(b))
-+#define luai_numsub(a,b) ((a)-(b))
-+#define luai_nummul(a,b) ((a)*(b))
-+#define luai_numdiv(a,b) ((a)/(b))
-+#define luai_nummod(a,b) ((a) - _LF(floor)((a)/(b))*(b))
-+#define luai_numpow(a,b) (_LF(pow)(a,b))
-+#define luai_numunm(a) (-(a))
-+#define luai_numeq(a,b) ((a)==(b))
-+#define luai_numlt(a,b) ((a)<(b))
-+#define luai_numle(a,b) ((a)<=(b))
-+#define luai_numisnan(a) (!luai_numeq((a), (a)))
-+
-+int try_addint( lua_Integer *r, lua_Integer ib, lua_Integer ic );
-+int try_subint( lua_Integer *r, lua_Integer ib, lua_Integer ic );
-+int try_mulint( lua_Integer *r, lua_Integer ib, lua_Integer ic );
-+int try_divint( lua_Integer *r, lua_Integer ib, lua_Integer ic );
-+int try_modint( lua_Integer *r, lua_Integer ib, lua_Integer ic );
-+int try_powint( lua_Integer *r, lua_Integer ib, lua_Integer ic );
-+int try_unmint( lua_Integer *r, lua_Integer ib );
-+
-+#ifdef LNUM_COMPLEX
-+ static inline lua_Complex luai_vectunm( lua_Complex a ) { return -a; }
-+ static inline lua_Complex luai_vectadd( lua_Complex a, lua_Complex b ) { return a+b; }
-+ static inline lua_Complex luai_vectsub( lua_Complex a, lua_Complex b ) { return a-b; }
-+ static inline lua_Complex luai_vectmul( lua_Complex a, lua_Complex b ) { return a*b; }
-+ static inline lua_Complex luai_vectdiv( lua_Complex a, lua_Complex b ) { return a/b; }
-+
-+/*
-+ * C99 does not provide modulus for complex numbers. It most likely is not
-+ * meaningful at all.
-+ */
-+
-+/*
-+ * Complex power
-+ *
-+ * C99 'cpow' gives inaccurate results for many common cases s.a. (1i)^2 ->
-+ * -1+1.2246467991474e-16i (OS X 10.4, gcc 4.0.1 build 5367)
-+ *
-+ * [(a+bi)^(c+di)] = (r^c) * exp(-d*t) * cos(c*t + d*ln(r)) +
-+ * = (r^c) * exp(-d*t) * sin(c*t + d*ln(r)) *i
-+ * r = sqrt(a^2+b^2), t = arctan( b/a )
-+ *
-+ * Reference: <http://home.att.net/~srschmitt/complexnumbers.html>
-+ * Could also be calculated using: x^y = exp(ln(x)*y)
-+ *
-+ * Note: Defined here (and not in .c) so 'lmathlib.c' can share the
-+ * implementation.
-+ */
-+ static inline
-+ lua_Complex luai_vectpow( lua_Complex a, lua_Complex b )
-+ {
-+# if 1
-+ lua_Number ar= _LF(creal)(a), ai= _LF(cimag)(a);
-+ lua_Number br= _LF(creal)(b), bi= _LF(cimag)(b);
-+
-+ if (ai==0 && bi==0) { /* a^c (real) */
-+ return luai_numpow( ar, br );
-+ }
-+
-+ int br_int= (int)br;
-+
-+ if ( ai!=0 && bi==0 && br_int==br && br_int!=0 && br_int!=INT_MIN ) {
-+ /* (a+bi)^N, N = { +-1,+-2, ... +-INT_MAX }
-+ */
-+ lua_Number k= luai_numpow( _LF(sqrt) (ar*ar + ai*ai), br );
-+ lua_Number cos_z, sin_z;
-+
-+ /* Situation depends upon c (N) in the following manner:
-+ *
-+ * N%4==0 => cos(c*t)=1, sin(c*t)=0
-+ * (N*sign(b))%4==1 or (N*sign(b))%4==-3 => cos(c*t)=0, sin(c*t)=1
-+ * N%4==2 or N%4==-2 => cos(c*t)=-1, sin(c*t)=0
-+ * (N*sign(b))%4==-1 or (N*sign(b))%4==3 => cos(c*t)=0, sin(c*t)=-1
-+ */
-+ int br_int_abs = br_int<0 ? -br_int:br_int;
-+
-+ switch( (br_int_abs%4) * (br_int<0 ? -1:1) * (ai<0 ? -1:1) ) {
-+ case 0: cos_z=1, sin_z=0; break;
-+ case 2: case -2: cos_z=-1, sin_z=0; break;
-+ case 1: case -3: cos_z=0, sin_z=1; break;
-+ case 3: case -1: cos_z=0, sin_z=-1; break;
-+ default: lua_assert(0); return 0;
-+ }
-+ return k*cos_z + (k*sin_z)*I;
-+ }
-+# endif
-+ return _LF(cpow) ( a, b );
-+ }
-+#endif
-+
-+LUAI_FUNC int luaO_str2d (const char *s, lua_Number *res1, lua_Integer *res2);
-+LUAI_FUNC void luaO_num2buf( char *s, const TValue *o );
-+
-+LUAI_FUNC int /*bool*/ tt_integer_valued( const TValue *o, lua_Integer *ref );
-+
-+#define luai_normalize(o) \
-+{ lua_Integer _i; if (tt_integer_valued(o,&_i)) setivalue(o,_i); }
-+
-+#endif
---- /dev/null
-+++ b/src/lnum_config.h
-@@ -0,0 +1,221 @@
-+/*
-+** $Id: lnum_config.h,v ... $
-+** Internal Number model
-+** See Copyright Notice in lua.h
-+*/
-+
-+#ifndef lnum_config_h
-+#define lnum_config_h
-+
-+/*
-+** Default number modes
-+*/
-+#if (!defined LNUM_DOUBLE) && (!defined LNUM_FLOAT) && (!defined LNUM_LDOUBLE)
-+# define LNUM_DOUBLE
-+#endif
-+#if (!defined LNUM_INT16) && (!defined LNUM_INT32) && (!defined LNUM_INT64)
-+# define LNUM_INT32
-+#endif
-+
-+/*
-+** Require C99 mode for COMPLEX, FLOAT and LDOUBLE (only DOUBLE is ANSI C).
-+*/
-+#if defined(LNUM_COMPLEX) && (__STDC_VERSION__ < 199901L)
-+# error "Need C99 for complex (use '--std=c99' or similar)"
-+#elif defined(LNUM_LDOUBLE) && (__STDC_VERSION__ < 199901L) && !defined(_MSC_VER)
-+# error "Need C99 for 'long double' (use '--std=c99' or similar)"
-+#elif defined(LNUM_FLOAT) && (__STDC_VERSION__ < 199901L)
-+/* LNUM_FLOAT not supported on Windows */
-+# error "Need C99 for 'float' (use '--std=c99' or similar)"
-+#endif
-+
-+/*
-+** Number mode identifier to accompany the version string.
-+*/
-+#ifdef LNUM_COMPLEX
-+# define _LNUM1 "complex "
-+#else
-+# define _LNUM1 ""
-+#endif
-+#ifdef LNUM_DOUBLE
-+# define _LNUM2 "double"
-+#elif defined(LNUM_FLOAT)
-+# define _LNUM2 "float"
-+#elif defined(LNUM_LDOUBLE)
-+# define _LNUM2 "ldouble"
-+#endif
-+#ifdef LNUM_INT32
-+# define _LNUM3 "int32"
-+#elif defined(LNUM_INT64)
-+# define _LNUM3 "int64"
-+#elif defined(LNUM_INT16)
-+# define _LNUM3 "int16"
-+#endif
-+#define LUA_LNUM _LNUM1 _LNUM2 " " _LNUM3
-+
-+/*
-+** LUA_NUMBER is the type of floating point number in Lua
-+** LUA_NUMBER_SCAN is the format for reading numbers.
-+** LUA_NUMBER_FMT is the format for writing numbers.
-+*/
-+#ifdef LNUM_FLOAT
-+# define LUA_NUMBER float
-+# define LUA_NUMBER_SCAN "%f"
-+# define LUA_NUMBER_FMT "%g"
-+#elif (defined LNUM_DOUBLE)
-+# define LUA_NUMBER double
-+# define LUA_NUMBER_SCAN "%lf"
-+# define LUA_NUMBER_FMT "%.14g"
-+#elif (defined LNUM_LDOUBLE)
-+# define LUA_NUMBER long double
-+# define LUA_NUMBER_SCAN "%Lg"
-+# define LUA_NUMBER_FMT "%.20Lg"
-+#endif
-+
-+
-+/*
-+** LUAI_MAXNUMBER2STR: size of a buffer fitting any number->string result.
-+**
-+** double: 24 (sign, x.xxxxxxxxxxxxxxe+nnnn, and \0)
-+** int64: 21 (19 digits, sign, and \0)
-+** long double: 43 for 128-bit (sign, x.xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxe+nnnn, and \0)
-+** 30 for 80-bit (sign, x.xxxxxxxxxxxxxxxxxxxxe+nnnn, and \0)
-+*/
-+#ifdef LNUM_LDOUBLE
-+# define _LUAI_MN2S 44
-+#else
-+# define _LUAI_MN2S 24
-+#endif
-+
-+#ifdef LNUM_COMPLEX
-+# define LUAI_MAXNUMBER2STR (2*_LUAI_MN2S)
-+#else
-+# define LUAI_MAXNUMBER2STR _LUAI_MN2S
-+#endif
-+
-+/*
-+** LUA_INTEGER is the integer type used by lua_pushinteger/lua_tointeger/lua_isinteger.
-+** LUA_INTEGER_SCAN is the format for reading integers
-+** LUA_INTEGER_FMT is the format for writing integers
-+**
-+** Note: Visual C++ 2005 does not have 'strtoull()', use '_strtoui64()' instead.
-+*/
-+#ifdef LNUM_INT32
-+# if LUAI_BITSINT > 16
-+# define LUA_INTEGER int
-+# define LUA_INTEGER_SCAN "%d"
-+# define LUA_INTEGER_FMT "%d"
-+# else
-+/* Note: 'LUA_INTEGER' being 'ptrdiff_t' (as in Lua 5.1) causes problems with
-+ * 'printf()' operations. Also 'unsigned ptrdiff_t' is invalid.
-+ */
-+# define LUA_INTEGER long
-+# define LUA_INTEGER_SCAN "%ld"
-+# define LUA_INTEGER_FMT "%ld"
-+# endif
-+# define LUA_INTEGER_MAX 0x7FFFFFFF /* 2^31-1 */
-+/* */
-+#elif defined(LNUM_INT64)
-+# define LUA_INTEGER long long
-+# ifdef _MSC_VER
-+# define lua_str2ul _strtoui64
-+# else
-+# define lua_str2ul strtoull
-+# endif
-+# define LUA_INTEGER_SCAN "%lld"
-+# define LUA_INTEGER_FMT "%lld"
-+# define LUA_INTEGER_MAX 0x7fffffffffffffffLL /* 2^63-1 */
-+# define LUA_INTEGER_MIN (-LUA_INTEGER_MAX - 1LL) /* -2^63 */
-+/* */
-+#elif defined(LNUM_INT16)
-+# if LUAI_BITSINT > 16
-+# define LUA_INTEGER short
-+# define LUA_INTEGER_SCAN "%hd"
-+# define LUA_INTEGER_FMT "%hd"
-+# else
-+# define LUA_INTEGER int
-+# define LUA_INTEGER_SCAN "%d"
-+# define LUA_INTEGER_FMT "%d"
-+# endif
-+# define LUA_INTEGER_MAX 0x7FFF /* 2^16-1 */
-+#endif
-+
-+#ifndef lua_str2ul
-+# define lua_str2ul (unsigned LUA_INTEGER)strtoul
-+#endif
-+#ifndef LUA_INTEGER_MIN
-+# define LUA_INTEGER_MIN (-LUA_INTEGER_MAX -1) /* -2^16|32 */
-+#endif
-+
-+/*
-+@@ lua_number2int is a macro to convert lua_Number to int.
-+@@ lua_number2integer is a macro to convert lua_Number to lua_Integer.
-+** CHANGE them if you know a faster way to convert a lua_Number to
-+** int (with any rounding method and without throwing errors) in your
-+** system. In Pentium machines, a naive typecast from double to int
-+** in C is extremely slow, so any alternative is worth trying.
-+*/
-+
-+/* On a Pentium, resort to a trick */
-+#if defined(LNUM_DOUBLE) && !defined(LUA_ANSI) && !defined(__SSE2__) && \
-+ (defined(__i386) || defined (_M_IX86) || defined(__i386__))
-+
-+/* On a Microsoft compiler, use assembler */
-+# if defined(_MSC_VER)
-+# define lua_number2int(i,d) __asm fld d __asm fistp i
-+# else
-+
-+/* the next trick should work on any Pentium, but sometimes clashes
-+ with a DirectX idiosyncrasy */
-+union luai_Cast { double l_d; long l_l; };
-+# define lua_number2int(i,d) \
-+ { volatile union luai_Cast u; u.l_d = (d) + 6755399441055744.0; (i) = u.l_l; }
-+# endif
-+
-+# ifndef LNUM_INT64
-+# define lua_number2integer lua_number2int
-+# endif
-+
-+/* this option always works, but may be slow */
-+#else
-+# define lua_number2int(i,d) ((i)=(int)(d))
-+#endif
-+
-+/* Note: Some compilers (OS X gcc 4.0?) may choke on double->long long conversion
-+ * since it can lose precision. Others do require 'long long' there.
-+ */
-+#ifndef lua_number2integer
-+# define lua_number2integer(i,d) ((i)=(lua_Integer)(d))
-+#endif
-+
-+/*
-+** 'luai_abs()' to give absolute value of 'lua_Integer'
-+*/
-+#ifdef LNUM_INT32
-+# define luai_abs abs
-+#elif defined(LNUM_INT64) && (__STDC_VERSION__ >= 199901L)
-+# define luai_abs llabs
-+#else
-+# define luai_abs(v) ((v) >= 0 ? (v) : -(v))
-+#endif
-+
-+/*
-+** LUAI_UACNUMBER is the result of an 'usual argument conversion' over a number.
-+** LUAI_UACINTEGER the same, over an integer.
-+*/
-+#define LUAI_UACNUMBER double
-+#define LUAI_UACINTEGER long
-+
-+/* ANSI C only has math funcs for 'double. C99 required for float and long double
-+ * variants.
-+ */
-+#ifdef LNUM_DOUBLE
-+# define _LF(name) name
-+#elif defined(LNUM_FLOAT)
-+# define _LF(name) name ## f
-+#elif defined(LNUM_LDOUBLE)
-+# define _LF(name) name ## l
-+#endif
-+
-+#endif
-+
---- a/src/lobject.c
-+++ b/src/lobject.c
-@@ -21,7 +21,8 @@
- #include "lstate.h"
- #include "lstring.h"
- #include "lvm.h"
--
-+#include "llex.h"
-+#include "lnum.h"
-
-
- const TValue luaO_nilobject_ = {{NULL}, LUA_TNIL};
-@@ -70,12 +71,31 @@ int luaO_log2 (unsigned int x) {
-
-
- int luaO_rawequalObj (const TValue *t1, const TValue *t2) {
-- if (ttype(t1) != ttype(t2)) return 0;
-+ if (!ttype_ext_same(t1,t2)) return 0;
- else switch (ttype(t1)) {
- case LUA_TNIL:
- return 1;
-+ case LUA_TINT:
-+ if (ttype(t2)==LUA_TINT)
-+ return ivalue(t1) == ivalue(t2);
-+ else { /* t1:int, t2:num */
-+#ifdef LNUM_COMPLEX
-+ if (nvalue_img_fast(t2) != 0) return 0;
-+#endif
-+ /* Avoid doing accuracy losing cast, if possible. */
-+ lua_Integer tmp;
-+ if (tt_integer_valued(t2,&tmp))
-+ return ivalue(t1) == tmp;
-+ else
-+ return luai_numeq( cast_num(ivalue(t1)), nvalue_fast(t2) );
-+ }
- case LUA_TNUMBER:
-- return luai_numeq(nvalue(t1), nvalue(t2));
-+ if (ttype(t2)==LUA_TINT)
-+ return luaO_rawequalObj(t2, t1); /* swap LUA_TINT to left */
-+#ifdef LNUM_COMPLEX
-+ if (!luai_numeq(nvalue_img_fast(t1), nvalue_img_fast(t2))) return 0;
-+#endif
-+ return luai_numeq(nvalue_fast(t1), nvalue_fast(t2));
- case LUA_TBOOLEAN:
- return bvalue(t1) == bvalue(t2); /* boolean true must be 1 !! */
- case LUA_TLIGHTUSERDATA:
-@@ -86,21 +106,6 @@ int luaO_rawequalObj (const TValue *t1,
- }
- }
-
--
--int luaO_str2d (const char *s, lua_Number *result) {
-- char *endptr;
-- *result = lua_str2number(s, &endptr);
-- if (endptr == s) return 0; /* conversion failed */
-- if (*endptr == 'x' || *endptr == 'X') /* maybe an hexadecimal constant? */
-- *result = cast_num(strtoul(s, &endptr, 16));
-- if (*endptr == '\0') return 1; /* most common case */
-- while (isspace(cast(unsigned char, *endptr))) endptr++;
-- if (*endptr != '\0') return 0; /* invalid trailing characters? */
-- return 1;
--}
--
--
--
- static void pushstr (lua_State *L, const char *str) {
- setsvalue2s(L, L->top, luaS_new(L, str));
- incr_top(L);
-@@ -131,7 +136,11 @@ const char *luaO_pushvfstring (lua_State
- break;
- }
- case 'd': {
-- setnvalue(L->top, cast_num(va_arg(argp, int)));
-+ /* This is tricky for 64-bit integers; maybe they even cannot be
-+ * supported on all compilers; depends on the conversions applied to
-+ * variable argument lists. TBD: test!
-+ */
-+ setivalue(L->top, (lua_Integer) va_arg(argp, l_uacInteger));
- incr_top(L);
- break;
- }
-@@ -212,3 +221,4 @@ void luaO_chunkid (char *out, const char
- }
- }
- }
-+
---- a/src/lobject.h
-+++ b/src/lobject.h
-@@ -17,7 +17,11 @@
-
-
- /* tags for values visible from Lua */
--#define LAST_TAG LUA_TTHREAD
-+#if LUA_TINT > LUA_TTHREAD
-+# define LAST_TAG LUA_TINT
-+#else
-+# define LAST_TAG LUA_TTHREAD
-+#endif
-
- #define NUM_TAGS (LAST_TAG+1)
-
-@@ -59,7 +63,12 @@ typedef struct GCheader {
- typedef union {
- GCObject *gc;
- void *p;
-+#ifdef LNUM_COMPLEX
-+ lua_Complex n;
-+#else
- lua_Number n;
-+#endif
-+ lua_Integer i;
- int b;
- } Value;
-
-@@ -77,7 +86,11 @@ typedef struct lua_TValue {
-
- /* Macros to test type */
- #define ttisnil(o) (ttype(o) == LUA_TNIL)
--#define ttisnumber(o) (ttype(o) == LUA_TNUMBER)
-+#define ttisint(o) (ttype(o) == LUA_TINT)
-+#define ttisnumber(o) ((ttype(o) == LUA_TINT) || (ttype(o) == LUA_TNUMBER))
-+#ifdef LNUM_COMPLEX
-+# define ttiscomplex(o) ((ttype(o) == LUA_TNUMBER) && (nvalue_img_fast(o)!=0))
-+#endif
- #define ttisstring(o) (ttype(o) == LUA_TSTRING)
- #define ttistable(o) (ttype(o) == LUA_TTABLE)
- #define ttisfunction(o) (ttype(o) == LUA_TFUNCTION)
-@@ -90,7 +103,25 @@ typedef struct lua_TValue {
- #define ttype(o) ((o)->tt)
- #define gcvalue(o) check_exp(iscollectable(o), (o)->value.gc)
- #define pvalue(o) check_exp(ttislightuserdata(o), (o)->value.p)
--#define nvalue(o) check_exp(ttisnumber(o), (o)->value.n)
-+
-+#define ttype_ext(o) ( ttype(o) == LUA_TINT ? LUA_TNUMBER : ttype(o) )
-+#define ttype_ext_same(o1,o2) ( (ttype(o1)==ttype(o2)) || (ttisnumber(o1) && ttisnumber(o2)) )
-+
-+/* '_fast' variants are for cases where 'ttype(o)' is known to be LUA_TNUMBER.
-+ */
-+#ifdef LNUM_COMPLEX
-+# define nvalue_complex_fast(o) check_exp( ttype(o)==LUA_TNUMBER, (o)->value.n )
-+# define nvalue_fast(o) ( _LF(creal) ( nvalue_complex_fast(o) ) )
-+# define nvalue_img_fast(o) ( _LF(cimag) ( nvalue_complex_fast(o) ) )
-+# define nvalue_complex(o) check_exp( ttisnumber(o), (ttype(o)==LUA_TINT) ? (o)->value.i : (o)->value.n )
-+# define nvalue_img(o) check_exp( ttisnumber(o), (ttype(o)==LUA_TINT) ? 0 : _LF(cimag)( (o)->value.n ) )
-+# define nvalue(o) check_exp( ttisnumber(o), (ttype(o)==LUA_TINT) ? cast_num((o)->value.i) : _LF(creal)((o)->value.n) )
-+#else
-+# define nvalue(o) check_exp( ttisnumber(o), (ttype(o)==LUA_TINT) ? cast_num((o)->value.i) : (o)->value.n )
-+# define nvalue_fast(o) check_exp( ttype(o)==LUA_TNUMBER, (o)->value.n )
-+#endif
-+#define ivalue(o) check_exp( ttype(o)==LUA_TINT, (o)->value.i )
-+
- #define rawtsvalue(o) check_exp(ttisstring(o), &(o)->value.gc->ts)
- #define tsvalue(o) (&rawtsvalue(o)->tsv)
- #define rawuvalue(o) check_exp(ttisuserdata(o), &(o)->value.gc->u)
-@@ -116,8 +147,27 @@ typedef struct lua_TValue {
- /* Macros to set values */
- #define setnilvalue(obj) ((obj)->tt=LUA_TNIL)
-
--#define setnvalue(obj,x) \
-- { TValue *i_o=(obj); i_o->value.n=(x); i_o->tt=LUA_TNUMBER; }
-+/* Must not have side effects, 'x' may be expression.
-+*/
-+#define setivalue(obj,x) \
-+ { TValue *i_o=(obj); i_o->value.i=(x); i_o->tt=LUA_TINT; }
-+
-+# define setnvalue(obj,x) \
-+ { TValue *i_o=(obj); i_o->value.n= (x); i_o->tt=LUA_TNUMBER; }
-+
-+/* Note: Complex always has "inline", both are C99.
-+*/
-+#ifdef LNUM_COMPLEX
-+ static inline void setnvalue_complex_fast( TValue *obj, lua_Complex x ) {
-+ lua_assert( _LF(cimag)(x) != 0 );
-+ obj->value.n= x; obj->tt= LUA_TNUMBER;
-+ }
-+ static inline void setnvalue_complex( TValue *obj, lua_Complex x ) {
-+ if (_LF(cimag)(x) == 0) { setnvalue(obj, _LF(creal)(x)); }
-+ else { obj->value.n= x; obj->tt= LUA_TNUMBER; }
-+ }
-+#endif
-+
-
- #define setpvalue(obj,x) \
- { TValue *i_o=(obj); i_o->value.p=(x); i_o->tt=LUA_TLIGHTUSERDATA; }
-@@ -155,9 +205,6 @@ typedef struct lua_TValue {
- i_o->value.gc=cast(GCObject *, (x)); i_o->tt=LUA_TPROTO; \
- checkliveness(G(L),i_o); }
-
--
--
--
- #define setobj(L,obj1,obj2) \
- { const TValue *o2=(obj2); TValue *o1=(obj1); \
- o1->value = o2->value; o1->tt=o2->tt; \
-@@ -185,8 +232,11 @@ typedef struct lua_TValue {
-
- #define setttype(obj, tt) (ttype(obj) = (tt))
-
--
--#define iscollectable(o) (ttype(o) >= LUA_TSTRING)
-+#if LUA_TINT >= LUA_TSTRING
-+# define iscollectable(o) ((ttype(o) >= LUA_TSTRING) && (ttype(o) != LUA_TINT))
-+#else
-+# define iscollectable(o) (ttype(o) >= LUA_TSTRING)
-+#endif
-
-
-
-@@ -370,12 +420,10 @@ LUAI_FUNC int luaO_log2 (unsigned int x)
- LUAI_FUNC int luaO_int2fb (unsigned int x);
- LUAI_FUNC int luaO_fb2int (int x);
- LUAI_FUNC int luaO_rawequalObj (const TValue *t1, const TValue *t2);
--LUAI_FUNC int luaO_str2d (const char *s, lua_Number *result);
- LUAI_FUNC const char *luaO_pushvfstring (lua_State *L, const char *fmt,
- va_list argp);
- LUAI_FUNC const char *luaO_pushfstring (lua_State *L, const char *fmt, ...);
- LUAI_FUNC void luaO_chunkid (char *out, const char *source, size_t len);
-
--
- #endif
-
---- a/src/loslib.c
-+++ b/src/loslib.c
-@@ -186,15 +186,30 @@ static int os_time (lua_State *L) {
- }
- if (t == (time_t)(-1))
- lua_pushnil(L);
-- else
-- lua_pushnumber(L, (lua_Number)t);
-+ else {
-+ /* On float systems the pushed value must be an integer, NOT a number.
-+ * Otherwise, accuracy is lost in the time_t->float conversion.
-+ */
-+#ifdef LNUM_FLOAT
-+ lua_pushinteger(L, (lua_Integer) t);
-+#else
-+ lua_pushnumber(L, (lua_Number) t);
-+#endif
-+ }
- return 1;
- }
-
-
- static int os_difftime (lua_State *L) {
-+#ifdef LNUM_FLOAT
-+ lua_Integer i= (lua_Integer)
-+ difftime( (time_t)(luaL_checkinteger(L, 1)),
-+ (time_t)(luaL_optinteger(L, 2, 0)));
-+ lua_pushinteger(L, i);
-+#else
- lua_pushnumber(L, difftime((time_t)(luaL_checknumber(L, 1)),
- (time_t)(luaL_optnumber(L, 2, 0))));
-+#endif
- return 1;
- }
-
---- a/src/lparser.c
-+++ b/src/lparser.c
-@@ -33,7 +33,6 @@
-
- #define luaY_checklimit(fs,v,l,m) if ((v)>(l)) errorlimit(fs,l,m)
-
--
- /*
- ** nodes for block list (list of active blocks)
- */
-@@ -72,7 +71,7 @@ static void errorlimit (FuncState *fs, i
- const char *msg = (fs->f->linedefined == 0) ?
- luaO_pushfstring(fs->L, "main function has more than %d %s", limit, what) :
- luaO_pushfstring(fs->L, "function at line %d has more than %d %s",
-- fs->f->linedefined, limit, what);
-+ (fs->f->linedefined), limit, what);
- luaX_lexerror(fs->ls, msg, 0);
- }
-
-@@ -733,6 +732,18 @@ static void simpleexp (LexState *ls, exp
- v->u.nval = ls->t.seminfo.r;
- break;
- }
-+ case TK_INT: {
-+ init_exp(v, VKINT, 0);
-+ v->u.ival = ls->t.seminfo.i;
-+ break;
-+ }
-+#ifdef LNUM_COMPLEX
-+ case TK_NUMBER2: {
-+ init_exp(v, VKNUM2, 0);
-+ v->u.nval = ls->t.seminfo.r;
-+ break;
-+ }
-+#endif
- case TK_STRING: {
- codestring(ls, v, ls->t.seminfo.ts);
- break;
-@@ -1079,7 +1090,7 @@ static void fornum (LexState *ls, TStrin
- if (testnext(ls, ','))
- exp1(ls); /* optional step */
- else { /* default step = 1 */
-- luaK_codeABx(fs, OP_LOADK, fs->freereg, luaK_numberK(fs, 1));
-+ luaK_codeABx(fs, OP_LOADK, fs->freereg, luaK_integerK(fs, 1));
- luaK_reserveregs(fs, 1);
- }
- forbody(ls, base, line, 1, 1);
---- a/src/lparser.h
-+++ b/src/lparser.h
-@@ -31,7 +31,11 @@ typedef enum {
- VRELOCABLE, /* info = instruction pc */
- VNONRELOC, /* info = result register */
- VCALL, /* info = instruction pc */
-- VVARARG /* info = instruction pc */
-+ VVARARG, /* info = instruction pc */
-+ VKINT /* ival = integer value */
-+#ifdef LNUM_COMPLEX
-+ ,VKNUM2 /* nval = imaginary value */
-+#endif
- } expkind;
-
- typedef struct expdesc {
-@@ -39,6 +43,7 @@ typedef struct expdesc {
- union {
- struct { int info, aux; } s;
- lua_Number nval;
-+ lua_Integer ival;
- } u;
- int t; /* patch list of `exit when true' */
- int f; /* patch list of `exit when false' */
---- a/src/lstrlib.c
-+++ b/src/lstrlib.c
-@@ -43,8 +43,8 @@ static ptrdiff_t posrelat (ptrdiff_t pos
- static int str_sub (lua_State *L) {
- size_t l;
- const char *s = luaL_checklstring(L, 1, &l);
-- ptrdiff_t start = posrelat(luaL_checkinteger(L, 2), l);
-- ptrdiff_t end = posrelat(luaL_optinteger(L, 3, -1), l);
-+ ptrdiff_t start = posrelat(luaL_checkint32(L, 2), l);
-+ ptrdiff_t end = posrelat(luaL_optint32(L, 3, -1), l);
- if (start < 1) start = 1;
- if (end > (ptrdiff_t)l) end = (ptrdiff_t)l;
- if (start <= end)
-@@ -106,8 +106,8 @@ static int str_rep (lua_State *L) {
- static int str_byte (lua_State *L) {
- size_t l;
- const char *s = luaL_checklstring(L, 1, &l);
-- ptrdiff_t posi = posrelat(luaL_optinteger(L, 2, 1), l);
-- ptrdiff_t pose = posrelat(luaL_optinteger(L, 3, posi), l);
-+ ptrdiff_t posi = posrelat(luaL_optint32(L, 2, 1), l);
-+ ptrdiff_t pose = posrelat(luaL_optint32(L, 3, posi), l);
- int n, i;
- if (posi <= 0) posi = 1;
- if ((size_t)pose > l) pose = l;
-@@ -496,7 +496,7 @@ static int str_find_aux (lua_State *L, i
- size_t l1, l2;
- const char *s = luaL_checklstring(L, 1, &l1);
- const char *p = luaL_checklstring(L, 2, &l2);
-- ptrdiff_t init = posrelat(luaL_optinteger(L, 3, 1), l1) - 1;
-+ ptrdiff_t init = posrelat(luaL_optint32(L, 3, 1), l1) - 1;
- if (init < 0) init = 0;
- else if ((size_t)(init) > l1) init = (ptrdiff_t)l1;
- if (find && (lua_toboolean(L, 4) || /* explicit request? */
-@@ -690,7 +690,7 @@ static int str_gsub (lua_State *L) {
- ** maximum size of each format specification (such as '%-099.99d')
- ** (+10 accounts for %99.99x plus margin of error)
- */
--#define MAX_FORMAT (sizeof(FLAGS) + sizeof(LUA_INTFRMLEN) + 10)
-+#define MAX_FORMAT (sizeof(FLAGS) + sizeof(LUA_INTEGER_FMT)-2 + 10)
-
-
- static void addquoted (lua_State *L, luaL_Buffer *b, int arg) {
-@@ -747,9 +747,9 @@ static const char *scanformat (lua_State
- static void addintlen (char *form) {
- size_t l = strlen(form);
- char spec = form[l - 1];
-- strcpy(form + l - 1, LUA_INTFRMLEN);
-- form[l + sizeof(LUA_INTFRMLEN) - 2] = spec;
-- form[l + sizeof(LUA_INTFRMLEN) - 1] = '\0';
-+ const char *tmp= LUA_INTEGER_FMT; /* "%lld" or "%ld" */
-+ strcpy(form + l - 1, tmp+1);
-+ form[l + sizeof(LUA_INTEGER_FMT)-4] = spec;
- }
-
-
-@@ -777,12 +777,12 @@ static int str_format (lua_State *L) {
- }
- case 'd': case 'i': {
- addintlen(form);
-- sprintf(buff, form, (LUA_INTFRM_T)luaL_checknumber(L, arg));
-+ sprintf(buff, form, luaL_checkinteger(L, arg));
- break;
- }
- case 'o': case 'u': case 'x': case 'X': {
- addintlen(form);
-- sprintf(buff, form, (unsigned LUA_INTFRM_T)luaL_checknumber(L, arg));
-+ sprintf(buff, form, (unsigned LUA_INTEGER)luaL_checkinteger(L, arg));
- break;
- }
- case 'e': case 'E': case 'f':
---- a/src/ltable.c
-+++ b/src/ltable.c
-@@ -33,6 +33,7 @@
- #include "lobject.h"
- #include "lstate.h"
- #include "ltable.h"
-+#include "lnum.h"
-
-
- /*
-@@ -51,25 +52,15 @@
-
- #define hashstr(t,str) hashpow2(t, (str)->tsv.hash)
- #define hashboolean(t,p) hashpow2(t, p)
--
-+#define hashint(t,i) hashpow2(t,i)
-
- /*
- ** for some types, it is better to avoid modulus by power of 2, as
- ** they tend to have many 2 factors.
- */
- #define hashmod(t,n) (gnode(t, ((n) % ((sizenode(t)-1)|1))))
--
--
- #define hashpointer(t,p) hashmod(t, IntPoint(p))
-
--
--/*
--** number of ints inside a lua_Number
--*/
--#define numints cast_int(sizeof(lua_Number)/sizeof(int))
--
--
--
- #define dummynode (&dummynode_)
-
- static const Node dummynode_ = {
-@@ -80,27 +71,46 @@ static const Node dummynode_ = {
-
- /*
- ** hash for lua_Numbers
-+**
-+** for non-complex modes, never called with 'lua_Integer' value range (s.a. 0)
- */
- static Node *hashnum (const Table *t, lua_Number n) {
-- unsigned int a[numints];
-- int i;
-- if (luai_numeq(n, 0)) /* avoid problems with -0 */
-- return gnode(t, 0);
-- memcpy(a, &n, sizeof(a));
-- for (i = 1; i < numints; i++) a[0] += a[i];
-- return hashmod(t, a[0]);
-+ const unsigned int *p= cast(const unsigned int *,&n);
-+ unsigned int sum= *p;
-+ unsigned int m= sizeof(lua_Number)/sizeof(int);
-+ unsigned int i;
-+ /* OS X Intel has 'm'==4 and gives "Bus error" if the last integer of
-+ * 'n' is read; the actual size of long double is only 80 bits = 10 bytes.
-+ * Linux x86 has 'm'==3, and does not require reduction.
-+ */
-+#if defined(LNUM_LDOUBLE) && defined(__i386__)
-+ if (m>3) m--;
-+#endif
-+ for (i = 1; i < m; i++) sum += p[i];
-+ return hashmod(t, sum);
- }
-
-
--
- /*
- ** returns the `main' position of an element in a table (that is, the index
- ** of its hash value)
-+**
-+** Floating point numbers with integer value give the hash position of the
-+** integer (so they use the same table position).
- */
- static Node *mainposition (const Table *t, const TValue *key) {
-+ lua_Integer i;
- switch (ttype(key)) {
- case LUA_TNUMBER:
-- return hashnum(t, nvalue(key));
-+ if (tt_integer_valued(key,&i))
-+ return hashint(t, i);
-+#ifdef LNUM_COMPLEX
-+ if (nvalue_img_fast(key)!=0 && luai_numeq(nvalue_fast(key),0))
-+ return gnode(t, 0); /* 0 and -0 to give same hash */
-+#endif
-+ return hashnum(t, nvalue_fast(key));
-+ case LUA_TINT:
-+ return hashint(t, ivalue(key));
- case LUA_TSTRING:
- return hashstr(t, rawtsvalue(key));
- case LUA_TBOOLEAN:
-@@ -116,16 +126,20 @@ static Node *mainposition (const Table *
- /*
- ** returns the index for `key' if `key' is an appropriate key to live in
- ** the array part of the table, -1 otherwise.
-+**
-+** Anything <=0 is taken as not being in the array part.
- */
--static int arrayindex (const TValue *key) {
-- if (ttisnumber(key)) {
-- lua_Number n = nvalue(key);
-- int k;
-- lua_number2int(k, n);
-- if (luai_numeq(cast_num(k), n))
-- return k;
-+static int arrayindex (const TValue *key, int max) {
-+ lua_Integer k;
-+ switch( ttype(key) ) {
-+ case LUA_TINT:
-+ k= ivalue(key); break;
-+ case LUA_TNUMBER:
-+ if (tt_integer_valued(key,&k)) break;
-+ default:
-+ return -1; /* not to be used as array index */
- }
-- return -1; /* `key' did not match some condition */
-+ return ((k>0) && (k <= max)) ? cast_int(k) : -1;
- }
-
-
-@@ -137,8 +151,8 @@ static int arrayindex (const TValue *key
- static int findindex (lua_State *L, Table *t, StkId key) {
- int i;
- if (ttisnil(key)) return -1; /* first iteration */
-- i = arrayindex(key);
-- if (0 < i && i <= t->sizearray) /* is `key' inside array part? */
-+ i = arrayindex(key, t->sizearray);
-+ if (i>0) /* inside array part? */
- return i-1; /* yes; that's the index (corrected to C) */
- else {
- Node *n = mainposition(t, key);
-@@ -163,7 +177,7 @@ int luaH_next (lua_State *L, Table *t, S
- int i = findindex(L, t, key); /* find original element */
- for (i++; i < t->sizearray; i++) { /* try first array part */
- if (!ttisnil(&t->array[i])) { /* a non-nil value? */
-- setnvalue(key, cast_num(i+1));
-+ setivalue(key, i+1);
- setobj2s(L, key+1, &t->array[i]);
- return 1;
- }
-@@ -209,8 +223,8 @@ static int computesizes (int nums[], int
-
-
- static int countint (const TValue *key, int *nums) {
-- int k = arrayindex(key);
-- if (0 < k && k <= MAXASIZE) { /* is `key' an appropriate array index? */
-+ int k = arrayindex(key,MAXASIZE);
-+ if (k>0) { /* appropriate array index? */
- nums[ceillog2(k)]++; /* count as such */
- return 1;
- }
-@@ -308,7 +322,7 @@ static void resize (lua_State *L, Table
- /* re-insert elements from vanishing slice */
- for (i=nasize; i<oldasize; i++) {
- if (!ttisnil(&t->array[i]))
-- setobjt2t(L, luaH_setnum(L, t, i+1), &t->array[i]);
-+ setobjt2t(L, luaH_setint(L, t, i+1), &t->array[i]);
- }
- /* shrink array */
- luaM_reallocvector(L, t->array, oldasize, nasize, TValue);
-@@ -409,7 +423,9 @@ static TValue *newkey (lua_State *L, Tab
- othern = mainposition(t, key2tval(mp));
- if (othern != mp) { /* is colliding node out of its main position? */
- /* yes; move colliding node into free position */
-- while (gnext(othern) != mp) othern = gnext(othern); /* find previous */
-+ while (gnext(othern) != mp) {
-+ othern = gnext(othern); /* find previous */
-+ }
- gnext(othern) = n; /* redo the chain with `n' in place of `mp' */
- *n = *mp; /* copy colliding node into free pos. (mp->next also goes) */
- gnext(mp) = NULL; /* now `mp' is free */
-@@ -432,17 +448,18 @@ static TValue *newkey (lua_State *L, Tab
- /*
- ** search function for integers
- */
--const TValue *luaH_getnum (Table *t, int key) {
-+const TValue *luaH_getint (Table *t, lua_Integer key) {
- /* (1 <= key && key <= t->sizearray) */
- if (cast(unsigned int, key-1) < cast(unsigned int, t->sizearray))
- return &t->array[key-1];
- else {
-- lua_Number nk = cast_num(key);
-- Node *n = hashnum(t, nk);
-+ Node *n = hashint(t, key);
- do { /* check whether `key' is somewhere in the chain */
-- if (ttisnumber(gkey(n)) && luai_numeq(nvalue(gkey(n)), nk))
-+ if (ttisint(gkey(n)) && (ivalue(gkey(n)) == key)) {
- return gval(n); /* that's it */
-- else n = gnext(n);
-+ } else {
-+ n = gnext(n);
-+ }
- } while (n);
- return luaO_nilobject;
- }
-@@ -470,14 +487,12 @@ const TValue *luaH_get (Table *t, const
- switch (ttype(key)) {
- case LUA_TNIL: return luaO_nilobject;
- case LUA_TSTRING: return luaH_getstr(t, rawtsvalue(key));
-+ case LUA_TINT: return luaH_getint(t, ivalue(key));
- case LUA_TNUMBER: {
-- int k;
-- lua_Number n = nvalue(key);
-- lua_number2int(k, n);
-- if (luai_numeq(cast_num(k), nvalue(key))) /* index is int? */
-- return luaH_getnum(t, k); /* use specialized version */
-- /* else go through */
-- }
-+ lua_Integer i;
-+ if (tt_integer_valued(key,&i))
-+ return luaH_getint(t,i);
-+ } /* pass through */
- default: {
- Node *n = mainposition(t, key);
- do { /* check whether `key' is somewhere in the chain */
-@@ -498,20 +513,25 @@ TValue *luaH_set (lua_State *L, Table *t
- return cast(TValue *, p);
- else {
- if (ttisnil(key)) luaG_runerror(L, "table index is nil");
-- else if (ttisnumber(key) && luai_numisnan(nvalue(key)))
-- luaG_runerror(L, "table index is NaN");
-+ else if (ttype(key)==LUA_TNUMBER) {
-+ lua_Integer k;
-+ if (luai_numisnan(nvalue_fast(key)))
-+ luaG_runerror(L, "table index is NaN");
-+ if (tt_integer_valued(key,&k))
-+ return luaH_setint(L, t, k);
-+ }
- return newkey(L, t, key);
- }
- }
-
-
--TValue *luaH_setnum (lua_State *L, Table *t, int key) {
-- const TValue *p = luaH_getnum(t, key);
-+TValue *luaH_setint (lua_State *L, Table *t, lua_Integer key) {
-+ const TValue *p = luaH_getint(t, key);
- if (p != luaO_nilobject)
- return cast(TValue *, p);
- else {
- TValue k;
-- setnvalue(&k, cast_num(key));
-+ setivalue(&k, key);
- return newkey(L, t, &k);
- }
- }
-@@ -533,20 +553,21 @@ static int unbound_search (Table *t, uns
- unsigned int i = j; /* i is zero or a present index */
- j++;
- /* find `i' and `j' such that i is present and j is not */
-- while (!ttisnil(luaH_getnum(t, j))) {
-+ while (!ttisnil(luaH_getint(t, j))) {
- i = j;
- j *= 2;
- if (j > cast(unsigned int, MAX_INT)) { /* overflow? */
- /* table was built with bad purposes: resort to linear search */
-- i = 1;
-- while (!ttisnil(luaH_getnum(t, i))) i++;
-- return i - 1;
-+ for( i = 1; i<MAX_INT+1; i++ ) {
-+ if (ttisnil(luaH_getint(t, i))) break;
-+ }
-+ return i - 1; /* up to MAX_INT */
- }
- }
- /* now do a binary search between them */
- while (j - i > 1) {
- unsigned int m = (i+j)/2;
-- if (ttisnil(luaH_getnum(t, m))) j = m;
-+ if (ttisnil(luaH_getint(t, m))) j = m;
- else i = m;
- }
- return i;
---- a/src/ltable.h
-+++ b/src/ltable.h
-@@ -18,8 +18,8 @@
- #define key2tval(n) (&(n)->i_key.tvk)
-
-
--LUAI_FUNC const TValue *luaH_getnum (Table *t, int key);
--LUAI_FUNC TValue *luaH_setnum (lua_State *L, Table *t, int key);
-+LUAI_FUNC const TValue *luaH_getint (Table *t, lua_Integer key);
-+LUAI_FUNC TValue *luaH_setint (lua_State *L, Table *t, lua_Integer key);
- LUAI_FUNC const TValue *luaH_getstr (Table *t, TString *key);
- LUAI_FUNC TValue *luaH_setstr (lua_State *L, Table *t, TString *key);
- LUAI_FUNC const TValue *luaH_get (Table *t, const TValue *key);
---- a/src/ltm.c
-+++ b/src/ltm.c
-@@ -19,7 +19,6 @@
- #include "ltm.h"
-
-
--
- const char *const luaT_typenames[] = {
- "nil", "boolean", "userdata", "number",
- "string", "table", "function", "userdata", "thread",
-@@ -67,6 +66,9 @@ const TValue *luaT_gettmbyobj (lua_State
- case LUA_TUSERDATA:
- mt = uvalue(o)->metatable;
- break;
-+ case LUA_TINT:
-+ mt = G(L)->mt[LUA_TNUMBER];
-+ break;
- default:
- mt = G(L)->mt[ttype(o)];
- }
---- a/src/lua.c
-+++ b/src/lua.c
-@@ -16,7 +16,7 @@
-
- #include "lauxlib.h"
- #include "lualib.h"
--
-+#include "llimits.h"
-
-
- static lua_State *globalL = NULL;
-@@ -382,6 +382,15 @@ int main (int argc, char **argv) {
- l_message(argv[0], "cannot create state: not enough memory");
- return EXIT_FAILURE;
- }
-+ /* Checking 'sizeof(lua_Integer)' cannot be made in preprocessor on all compilers.
-+ */
-+#ifdef LNUM_INT16
-+ lua_assert( sizeof(lua_Integer) == 2 );
-+#elif defined(LNUM_INT32)
-+ lua_assert( sizeof(lua_Integer) == 4 );
-+#elif defined(LNUM_INT64)
-+ lua_assert( sizeof(lua_Integer) == 8 );
-+#endif
- s.argc = argc;
- s.argv = argv;
- status = lua_cpcall(L, &pmain, &s);
---- a/src/lua.h
-+++ b/src/lua.h
-@@ -19,7 +19,7 @@
- #define LUA_VERSION "Lua 5.1"
- #define LUA_RELEASE "Lua 5.1.4"
- #define LUA_VERSION_NUM 501
--#define LUA_COPYRIGHT "Copyright (C) 1994-2008 Lua.org, PUC-Rio"
-+#define LUA_COPYRIGHT "Copyright (C) 1994-2008 Lua.org, PUC-Rio" " (" LUA_LNUM ")"
- #define LUA_AUTHORS "R. Ierusalimschy, L. H. de Figueiredo & W. Celes"
-
-
-@@ -71,6 +71,16 @@ typedef void * (*lua_Alloc) (void *ud, v
- */
- #define LUA_TNONE (-1)
-
-+/* LUA_TINT is an internal type, not visible to applications. There are three
-+ * potential values where it can be tweaked to (code autoadjusts to these):
-+ *
-+ * -2: not 'usual' type value; good since 'LUA_TINT' is not part of the API
-+ * LUA_TNUMBER+1: shifts other type values upwards, breaking binary compatibility
-+ * not acceptable for 5.1, maybe 5.2 onwards?
-+ * 9: greater than existing (5.1) type values.
-+*/
-+#define LUA_TINT (-2)
-+
- #define LUA_TNIL 0
- #define LUA_TBOOLEAN 1
- #define LUA_TLIGHTUSERDATA 2
-@@ -139,6 +149,8 @@ LUA_API int (lua_isuserdata)
- LUA_API int (lua_type) (lua_State *L, int idx);
- LUA_API const char *(lua_typename) (lua_State *L, int tp);
-
-+LUA_API int (lua_isinteger) (lua_State *L, int idx);
-+
- LUA_API int (lua_equal) (lua_State *L, int idx1, int idx2);
- LUA_API int (lua_rawequal) (lua_State *L, int idx1, int idx2);
- LUA_API int (lua_lessthan) (lua_State *L, int idx1, int idx2);
-@@ -244,6 +256,19 @@ LUA_API lua_Alloc (lua_getallocf) (lua_S
- LUA_API void lua_setallocf (lua_State *L, lua_Alloc f, void *ud);
-
-
-+/*
-+* It is unnecessary to break Lua C API 'lua_tonumber()' compatibility, just
-+* because the Lua number type is complex. Most C modules would use scalars
-+* only. We'll introduce new 'lua_tocomplex' and 'lua_pushcomplex' for when
-+* the module really wants to use them.
-+*/
-+#ifdef LNUM_COMPLEX
-+ #include <complex.h>
-+ typedef LUA_NUMBER complex lua_Complex;
-+ LUA_API lua_Complex (lua_tocomplex) (lua_State *L, int idx);
-+ LUA_API void (lua_pushcomplex) (lua_State *L, lua_Complex v);
-+#endif
-+
-
- /*
- ** ===============================================================
-@@ -268,7 +293,12 @@ LUA_API void lua_setallocf (lua_State *L
- #define lua_isboolean(L,n) (lua_type(L, (n)) == LUA_TBOOLEAN)
- #define lua_isthread(L,n) (lua_type(L, (n)) == LUA_TTHREAD)
- #define lua_isnone(L,n) (lua_type(L, (n)) == LUA_TNONE)
--#define lua_isnoneornil(L, n) (lua_type(L, (n)) <= 0)
-+
-+#if LUA_TINT < 0
-+# define lua_isnoneornil(L, n) ( (lua_type(L,(n)) <= 0) && (lua_type(L,(n)) != LUA_TINT) )
-+#else
-+# define lua_isnoneornil(L, n) (lua_type(L, (n)) <= 0)
-+#endif
-
- #define lua_pushliteral(L, s) \
- lua_pushlstring(L, "" s, (sizeof(s)/sizeof(char))-1)
-@@ -386,3 +416,4 @@ struct lua_Debug {
-
-
- #endif
-+
---- a/src/luaconf.h
-+++ b/src/luaconf.h
-@@ -10,7 +10,9 @@
-
- #include <limits.h>
- #include <stddef.h>
--
-+#ifdef lua_assert
-+# include <assert.h>
-+#endif
-
- /*
- ** ==================================================================
-@@ -136,14 +138,38 @@
-
-
- /*
--@@ LUA_INTEGER is the integral type used by lua_pushinteger/lua_tointeger.
--** CHANGE that if ptrdiff_t is not adequate on your machine. (On most
--** machines, ptrdiff_t gives a good choice between int or long.)
-+@@ LUAI_BITSINT defines the number of bits in an int.
-+** CHANGE here if Lua cannot automatically detect the number of bits of
-+** your machine. Probably you do not need to change this.
- */
--#define LUA_INTEGER ptrdiff_t
-+/* avoid overflows in comparison */
-+#if INT_MAX-20 < 32760
-+#define LUAI_BITSINT 16
-+#elif INT_MAX > 2147483640L
-+/* int has at least 32 bits */
-+#define LUAI_BITSINT 32
-+#else
-+#error "you must define LUA_BITSINT with number of bits in an integer"
-+#endif
-
-
- /*
-+@@ LNUM_DOUBLE |Â LNUM_FLOAT |Â LNUM_LDOUBLE: Generic Lua number mode
-+@@ LNUM_INT32 | LNUM_INT64: Integer type
-+@@ LNUM_COMPLEX: Define for using 'a+bi' numbers
-+@@
-+@@ You can combine LNUM_xxx but only one of each group. I.e. '-DLNUM_FLOAT
-+@@ -DLNUM_INT32 -DLNUM_COMPLEX' gives float range complex numbers, with
-+@@ 32-bit scalar integer range optimized.
-+**
-+** These are kept in a separate configuration file mainly for ease of patching
-+** (can be changed if integerated to Lua proper).
-+*/
-+/*#define LNUM_DOUBLE*/
-+/*#define LNUM_INT32*/
-+#include "lnum_config.h"
-+
-+/*
- @@ LUA_API is a mark for all core API functions.
- @@ LUALIB_API is a mark for all standard library functions.
- ** CHANGE them if you need to define those functions in some special way.
-@@ -383,22 +409,6 @@
-
-
- /*
--@@ LUAI_BITSINT defines the number of bits in an int.
--** CHANGE here if Lua cannot automatically detect the number of bits of
--** your machine. Probably you do not need to change this.
--*/
--/* avoid overflows in comparison */
--#if INT_MAX-20 < 32760
--#define LUAI_BITSINT 16
--#elif INT_MAX > 2147483640L
--/* int has at least 32 bits */
--#define LUAI_BITSINT 32
--#else
--#error "you must define LUA_BITSINT with number of bits in an integer"
--#endif
--
--
--/*
- @@ LUAI_UINT32 is an unsigned integer with at least 32 bits.
- @@ LUAI_INT32 is an signed integer with at least 32 bits.
- @@ LUAI_UMEM is an unsigned integer big enough to count the total
-@@ -425,6 +435,15 @@
- #define LUAI_MEM long
- #endif
-
-+/*
-+@@ LUAI_BOOL carries 0 and nonzero (normally 1). It may be defined as 'char'
-+** (to save memory), 'int' (for speed), 'bool' (for C++) or '_Bool' (C99)
-+*/
-+#ifdef __cplusplus
-+# define LUAI_BOOL bool
-+#else
-+# define LUAI_BOOL int
-+#endif
-
- /*
- @@ LUAI_MAXCALLS limits the number of nested calls.
-@@ -490,101 +509,6 @@
- /* }================================================================== */
-
-
--
--
--/*
--** {==================================================================
--@@ LUA_NUMBER is the type of numbers in Lua.
--** CHANGE the following definitions only if you want to build Lua
--** with a number type different from double. You may also need to
--** change lua_number2int & lua_number2integer.
--** ===================================================================
--*/
--
--#define LUA_NUMBER_DOUBLE
--#define LUA_NUMBER double
--
--/*
--@@ LUAI_UACNUMBER is the result of an 'usual argument conversion'
--@* over a number.
--*/
--#define LUAI_UACNUMBER double
--
--
--/*
--@@ LUA_NUMBER_SCAN is the format for reading numbers.
--@@ LUA_NUMBER_FMT is the format for writing numbers.
--@@ lua_number2str converts a number to a string.
--@@ LUAI_MAXNUMBER2STR is maximum size of previous conversion.
--@@ lua_str2number converts a string to a number.
--*/
--#define LUA_NUMBER_SCAN "%lf"
--#define LUA_NUMBER_FMT "%.14g"
--#define lua_number2str(s,n) sprintf((s), LUA_NUMBER_FMT, (n))
--#define LUAI_MAXNUMBER2STR 32 /* 16 digits, sign, point, and \0 */
--#define lua_str2number(s,p) strtod((s), (p))
--
--
--/*
--@@ The luai_num* macros define the primitive operations over numbers.
--*/
--#if defined(LUA_CORE)
--#include <math.h>
--#define luai_numadd(a,b) ((a)+(b))
--#define luai_numsub(a,b) ((a)-(b))
--#define luai_nummul(a,b) ((a)*(b))
--#define luai_numdiv(a,b) ((a)/(b))
--#define luai_nummod(a,b) ((a) - floor((a)/(b))*(b))
--#define luai_numpow(a,b) (pow(a,b))
--#define luai_numunm(a) (-(a))
--#define luai_numeq(a,b) ((a)==(b))
--#define luai_numlt(a,b) ((a)<(b))
--#define luai_numle(a,b) ((a)<=(b))
--#define luai_numisnan(a) (!luai_numeq((a), (a)))
--#endif
--
--
--/*
--@@ lua_number2int is a macro to convert lua_Number to int.
--@@ lua_number2integer is a macro to convert lua_Number to lua_Integer.
--** CHANGE them if you know a faster way to convert a lua_Number to
--** int (with any rounding method and without throwing errors) in your
--** system. In Pentium machines, a naive typecast from double to int
--** in C is extremely slow, so any alternative is worth trying.
--*/
--
--/* On a Pentium, resort to a trick */
--#if defined(LUA_NUMBER_DOUBLE) && !defined(LUA_ANSI) && !defined(__SSE2__) && \
-- (defined(__i386) || defined (_M_IX86) || defined(__i386__))
--
--/* On a Microsoft compiler, use assembler */
--#if defined(_MSC_VER)
--
--#define lua_number2int(i,d) __asm fld d __asm fistp i
--#define lua_number2integer(i,n) lua_number2int(i, n)
--
--/* the next trick should work on any Pentium, but sometimes clashes
-- with a DirectX idiosyncrasy */
--#else
--
--union luai_Cast { double l_d; long l_l; };
--#define lua_number2int(i,d) \
-- { volatile union luai_Cast u; u.l_d = (d) + 6755399441055744.0; (i) = u.l_l; }
--#define lua_number2integer(i,n) lua_number2int(i, n)
--
--#endif
--
--
--/* this option always works, but may be slow */
--#else
--#define lua_number2int(i,d) ((i)=(int)(d))
--#define lua_number2integer(i,d) ((i)=(lua_Integer)(d))
--
--#endif
--
--/* }================================================================== */
--
--
- /*
- @@ LUAI_USER_ALIGNMENT_T is a type that requires maximum alignment.
- ** CHANGE it if your system requires alignments larger than double. (For
-@@ -728,28 +652,6 @@ union luai_Cast { double l_d; long l_l;
- #define luai_userstateyield(L,n) ((void)L)
-
-
--/*
--@@ LUA_INTFRMLEN is the length modifier for integer conversions
--@* in 'string.format'.
--@@ LUA_INTFRM_T is the integer type correspoding to the previous length
--@* modifier.
--** CHANGE them if your system supports long long or does not support long.
--*/
--
--#if defined(LUA_USELONGLONG)
--
--#define LUA_INTFRMLEN "ll"
--#define LUA_INTFRM_T long long
--
--#else
--
--#define LUA_INTFRMLEN "l"
--#define LUA_INTFRM_T long
--
--#endif
--
--
--
- /* =================================================================== */
-
- /*
---- a/src/lundump.c
-+++ b/src/lundump.c
-@@ -73,6 +73,13 @@ static lua_Number LoadNumber(LoadState*
- return x;
- }
-
-+static lua_Integer LoadInteger(LoadState* S)
-+{
-+ lua_Integer x;
-+ LoadVar(S,x);
-+ return x;
-+}
-+
- static TString* LoadString(LoadState* S)
- {
- size_t size;
-@@ -119,6 +126,9 @@ static void LoadConstants(LoadState* S,
- case LUA_TNUMBER:
- setnvalue(o,LoadNumber(S));
- break;
-+ case LUA_TINT: /* Integer type saved in bytecode (see lcode.c) */
-+ setivalue(o,LoadInteger(S));
-+ break;
- case LUA_TSTRING:
- setsvalue2n(S->L,o,LoadString(S));
- break;
-@@ -223,5 +233,22 @@ void luaU_header (char* h)
- *h++=(char)sizeof(size_t);
- *h++=(char)sizeof(Instruction);
- *h++=(char)sizeof(lua_Number);
-- *h++=(char)(((lua_Number)0.5)==0); /* is lua_Number integral? */
-+
-+ /*
-+ * Last byte of header (0/1 in unpatched Lua 5.1.3):
-+ *
-+ * 0: lua_Number is float or double, lua_Integer not used. (nonpatched only)
-+ * 1: lua_Number is integer (nonpatched only)
-+ *
-+ * +2: LNUM_INT16: sizeof(lua_Integer)
-+ * +4: LNUM_INT32: sizeof(lua_Integer)
-+ * +8: LNUM_INT64: sizeof(lua_Integer)
-+ *
-+ * +0x80: LNUM_COMPLEX
-+ */
-+ *h++ = (char)(sizeof(lua_Integer)
-+#ifdef LNUM_COMPLEX
-+ | 0x80
-+#endif
-+ );
- }
---- a/src/lvm.c
-+++ b/src/lvm.c
-@@ -25,22 +25,35 @@
- #include "ltable.h"
- #include "ltm.h"
- #include "lvm.h"
--
--
-+#include "llex.h"
-+#include "lnum.h"
-
- /* limit for table tag-method chains (to avoid loops) */
- #define MAXTAGLOOP 100
-
-
--const TValue *luaV_tonumber (const TValue *obj, TValue *n) {
-- lua_Number num;
-+/*
-+ * If 'obj' is a string, it is tried to be interpreted as a number.
-+ */
-+const TValue *luaV_tonumber ( const TValue *obj, TValue *n) {
-+ lua_Number d;
-+ lua_Integer i;
-+
- if (ttisnumber(obj)) return obj;
-- if (ttisstring(obj) && luaO_str2d(svalue(obj), &num)) {
-- setnvalue(n, num);
-- return n;
-- }
-- else
-- return NULL;
-+
-+ if (ttisstring(obj)) {
-+ switch( luaO_str2d( svalue(obj), &d, &i ) ) {
-+ case TK_INT:
-+ setivalue(n,i); return n;
-+ case TK_NUMBER:
-+ setnvalue(n,d); return n;
-+#ifdef LNUM_COMPLEX
-+ case TK_NUMBER2: /* "N.NNNi", != 0 */
-+ setnvalue_complex_fast(n, d*I); return n;
-+#endif
-+ }
-+ }
-+ return NULL;
- }
-
-
-@@ -49,8 +62,7 @@ int luaV_tostring (lua_State *L, StkId o
- return 0;
- else {
- char s[LUAI_MAXNUMBER2STR];
-- lua_Number n = nvalue(obj);
-- lua_number2str(s, n);
-+ luaO_num2buf(s,obj);
- setsvalue2s(L, obj, luaS_new(L, s));
- return 1;
- }
-@@ -218,59 +230,127 @@ static int l_strcmp (const TString *ls,
- }
-
-
-+#ifdef LNUM_COMPLEX
-+void error_complex( lua_State *L, const TValue *l, const TValue *r )
-+{
-+ char buf1[ LUAI_MAXNUMBER2STR ];
-+ char buf2[ LUAI_MAXNUMBER2STR ];
-+ luaO_num2buf( buf1, l );
-+ luaO_num2buf( buf2, r );
-+ luaG_runerror( L, "unable to compare: %s with %s", buf1, buf2 );
-+ /* no return */
-+}
-+#endif
-+
-+
- int luaV_lessthan (lua_State *L, const TValue *l, const TValue *r) {
- int res;
-- if (ttype(l) != ttype(r))
-+ int tl,tr;
-+ lua_Integer tmp;
-+
-+ if (!ttype_ext_same(l,r))
- return luaG_ordererror(L, l, r);
-- else if (ttisnumber(l))
-- return luai_numlt(nvalue(l), nvalue(r));
-- else if (ttisstring(l))
-- return l_strcmp(rawtsvalue(l), rawtsvalue(r)) < 0;
-- else if ((res = call_orderTM(L, l, r, TM_LT)) != -1)
-+#ifdef LNUM_COMPLEX
-+ if ( (nvalue_img(l)!=0) || (nvalue_img(r)!=0) )
-+ error_complex( L, l, r );
-+#endif
-+ tl= ttype(l); tr= ttype(r);
-+ if (tl==tr) { /* clear arithmetics */
-+ switch(tl) {
-+ case LUA_TINT: return ivalue(l) < ivalue(r);
-+ case LUA_TNUMBER: return luai_numlt(nvalue_fast(l), nvalue_fast(r));
-+ case LUA_TSTRING: return l_strcmp(rawtsvalue(l), rawtsvalue(r)) < 0;
-+ }
-+ } else if (tl==LUA_TINT) { /* l:int, r:num */
-+ /* Avoid accuracy losing casts: if 'r' is integer by value, do comparisons
-+ * in integer realm. Only otherwise cast 'l' to FP (which might change its
-+ * value).
-+ */
-+ if (tt_integer_valued(r,&tmp))
-+ return ivalue(l) < tmp;
-+ else
-+ return luai_numlt( cast_num(ivalue(l)), nvalue_fast(r) );
-+
-+ } else if (tl==LUA_TNUMBER) { /* l:num, r:int */
-+ if (tt_integer_valued(l,&tmp))
-+ return tmp < ivalue(r);
-+ else
-+ return luai_numlt( nvalue_fast(l), cast_num(ivalue(r)) );
-+
-+ } else if ((res = call_orderTM(L, l, r, TM_LT)) != -1)
- return res;
-+
- return luaG_ordererror(L, l, r);
- }
-
-
- static int lessequal (lua_State *L, const TValue *l, const TValue *r) {
- int res;
-- if (ttype(l) != ttype(r))
-+ int tl, tr;
-+ lua_Integer tmp;
-+
-+ if (!ttype_ext_same(l,r))
- return luaG_ordererror(L, l, r);
-- else if (ttisnumber(l))
-- return luai_numle(nvalue(l), nvalue(r));
-- else if (ttisstring(l))
-- return l_strcmp(rawtsvalue(l), rawtsvalue(r)) <= 0;
-- else if ((res = call_orderTM(L, l, r, TM_LE)) != -1) /* first try `le' */
-+#ifdef LNUM_COMPLEX
-+ if ( (nvalue_img(l)!=0) || (nvalue_img(r)!=0) )
-+ error_complex( L, l, r );
-+#endif
-+ tl= ttype(l); tr= ttype(r);
-+ if (tl==tr) { /* clear arithmetics */
-+ switch(tl) {
-+ case LUA_TINT: return ivalue(l) <= ivalue(r);
-+ case LUA_TNUMBER: return luai_numle(nvalue_fast(l), nvalue_fast(r));
-+ case LUA_TSTRING: return l_strcmp(rawtsvalue(l), rawtsvalue(r)) <= 0;
-+ }
-+ }
-+ if (tl==LUA_TINT) { /* l:int, r:num */
-+ if (tt_integer_valued(r,&tmp))
-+ return ivalue(l) <= tmp;
-+ else
-+ return luai_numle( cast_num(ivalue(l)), nvalue_fast(r) );
-+
-+ } else if (tl==LUA_TNUMBER) { /* l:num, r:int */
-+ if (tt_integer_valued(l,&tmp))
-+ return tmp <= ivalue(r);
-+ else
-+ return luai_numle( nvalue_fast(l), cast_num(ivalue(r)) );
-+
-+ } else if ((res = call_orderTM(L, l, r, TM_LE)) != -1) /* first try `le' */
- return res;
- else if ((res = call_orderTM(L, r, l, TM_LT)) != -1) /* else try `lt' */
- return !res;
-+
- return luaG_ordererror(L, l, r);
- }
-
-
--int luaV_equalval (lua_State *L, const TValue *t1, const TValue *t2) {
-+/* Note: 'luaV_equalval()' and 'luaO_rawequalObj()' have largely overlapping
-+ * implementation. LUA_TNIL..LUA_TLIGHTUSERDATA cases could be handled
-+ * simply by the 'default' case here.
-+ */
-+int luaV_equalval (lua_State *L, const TValue *l, const TValue *r) {
- const TValue *tm;
-- lua_assert(ttype(t1) == ttype(t2));
-- switch (ttype(t1)) {
-+ lua_assert(ttype_ext_same(l,r));
-+ switch (ttype(l)) {
- case LUA_TNIL: return 1;
-- case LUA_TNUMBER: return luai_numeq(nvalue(t1), nvalue(t2));
-- case LUA_TBOOLEAN: return bvalue(t1) == bvalue(t2); /* true must be 1 !! */
-- case LUA_TLIGHTUSERDATA: return pvalue(t1) == pvalue(t2);
-+ case LUA_TINT:
-+ case LUA_TNUMBER: return luaO_rawequalObj(l,r);
-+ case LUA_TBOOLEAN: return bvalue(l) == bvalue(r); /* true must be 1 !! */
-+ case LUA_TLIGHTUSERDATA: return pvalue(l) == pvalue(r);
- case LUA_TUSERDATA: {
-- if (uvalue(t1) == uvalue(t2)) return 1;
-- tm = get_compTM(L, uvalue(t1)->metatable, uvalue(t2)->metatable,
-- TM_EQ);
-+ if (uvalue(l) == uvalue(r)) return 1;
-+ tm = get_compTM(L, uvalue(l)->metatable, uvalue(r)->metatable, TM_EQ);
- break; /* will try TM */
- }
- case LUA_TTABLE: {
-- if (hvalue(t1) == hvalue(t2)) return 1;
-- tm = get_compTM(L, hvalue(t1)->metatable, hvalue(t2)->metatable, TM_EQ);
-+ if (hvalue(l) == hvalue(r)) return 1;
-+ tm = get_compTM(L, hvalue(l)->metatable, hvalue(r)->metatable, TM_EQ);
- break; /* will try TM */
- }
-- default: return gcvalue(t1) == gcvalue(t2);
-+ default: return gcvalue(l) == gcvalue(r);
- }
- if (tm == NULL) return 0; /* no TM? */
-- callTMres(L, L->top, tm, t1, t2); /* call TM */
-+ callTMres(L, L->top, tm, l, r); /* call TM */
- return !l_isfalse(L->top);
- }
-
-@@ -310,30 +390,6 @@ void luaV_concat (lua_State *L, int tota
- }
-
-
--static void Arith (lua_State *L, StkId ra, const TValue *rb,
-- const TValue *rc, TMS op) {
-- TValue tempb, tempc;
-- const TValue *b, *c;
-- if ((b = luaV_tonumber(rb, &tempb)) != NULL &&
-- (c = luaV_tonumber(rc, &tempc)) != NULL) {
-- lua_Number nb = nvalue(b), nc = nvalue(c);
-- switch (op) {
-- case TM_ADD: setnvalue(ra, luai_numadd(nb, nc)); break;
-- case TM_SUB: setnvalue(ra, luai_numsub(nb, nc)); break;
-- case TM_MUL: setnvalue(ra, luai_nummul(nb, nc)); break;
-- case TM_DIV: setnvalue(ra, luai_numdiv(nb, nc)); break;
-- case TM_MOD: setnvalue(ra, luai_nummod(nb, nc)); break;
-- case TM_POW: setnvalue(ra, luai_numpow(nb, nc)); break;
-- case TM_UNM: setnvalue(ra, luai_numunm(nb)); break;
-- default: lua_assert(0); break;
-- }
-- }
-- else if (!call_binTM(L, rb, rc, ra, op))
-- luaG_aritherror(L, rb, rc);
--}
--
--
--
- /*
- ** some macros for common tasks in `luaV_execute'
- */
-@@ -357,17 +413,154 @@ static void Arith (lua_State *L, StkId r
- #define Protect(x) { L->savedpc = pc; {x;}; base = L->base; }
-
-
--#define arith_op(op,tm) { \
-- TValue *rb = RKB(i); \
-- TValue *rc = RKC(i); \
-- if (ttisnumber(rb) && ttisnumber(rc)) { \
-- lua_Number nb = nvalue(rb), nc = nvalue(rc); \
-- setnvalue(ra, op(nb, nc)); \
-- } \
-- else \
-- Protect(Arith(L, ra, rb, rc, tm)); \
-+/* Note: if called for unary operations, 'rc'=='rb'.
-+ */
-+static void Arith (lua_State *L, StkId ra, const TValue *rb,
-+ const TValue *rc, TMS op) {
-+ TValue tempb, tempc;
-+ const TValue *b, *c;
-+ lua_Number nb,nc;
-+
-+ if ((b = luaV_tonumber(rb, &tempb)) != NULL &&
-+ (c = luaV_tonumber(rc, &tempc)) != NULL) {
-+
-+ /* Keep integer arithmetics in the integer realm, if possible.
-+ */
-+ if (ttisint(b) && ttisint(c)) {
-+ lua_Integer ib = ivalue(b), ic = ivalue(c);
-+ lua_Integer *ri = &ra->value.i;
-+ ra->tt= LUA_TINT; /* part of 'setivalue(ra)' */
-+ switch (op) {
-+ case TM_ADD: if (try_addint( ri, ib, ic)) return; break;
-+ case TM_SUB: if (try_subint( ri, ib, ic)) return; break;
-+ case TM_MUL: if (try_mulint( ri, ib, ic)) return; break;
-+ case TM_DIV: if (try_divint( ri, ib, ic)) return; break;
-+ case TM_MOD: if (try_modint( ri, ib, ic)) return; break;
-+ case TM_POW: if (try_powint( ri, ib, ic)) return; break;
-+ case TM_UNM: if (try_unmint( ri, ib)) return; break;
-+ default: lua_assert(0);
-+ }
-+ }
-+ /* Fallback to floating point, when leaving range. */
-+
-+#ifdef LNUM_COMPLEX
-+ if ((nvalue_img(b)!=0) || (nvalue_img(c)!=0)) {
-+ lua_Complex r;
-+ if (op==TM_UNM) {
-+ r= -nvalue_complex_fast(b); /* never an integer (or scalar) */
-+ setnvalue_complex_fast( ra, r );
-+ } else {
-+ lua_Complex bb= nvalue_complex(b), cc= nvalue_complex(c);
-+ switch (op) {
-+ case TM_ADD: r= bb + cc; break;
-+ case TM_SUB: r= bb - cc; break;
-+ case TM_MUL: r= bb * cc; break;
-+ case TM_DIV: r= bb / cc; break;
-+ case TM_MOD:
-+ luaG_runerror(L, "attempt to use %% on complex numbers"); /* no return */
-+ case TM_POW: r= luai_vectpow( bb, cc ); break;
-+ default: lua_assert(0); r=0;
-+ }
-+ setnvalue_complex( ra, r );
- }
-+ return;
-+ }
-+#endif
-+ nb = nvalue(b); nc = nvalue(c);
-+ switch (op) {
-+ case TM_ADD: setnvalue(ra, luai_numadd(nb, nc)); return;
-+ case TM_SUB: setnvalue(ra, luai_numsub(nb, nc)); return;
-+ case TM_MUL: setnvalue(ra, luai_nummul(nb, nc)); return;
-+ case TM_DIV: setnvalue(ra, luai_numdiv(nb, nc)); return;
-+ case TM_MOD: setnvalue(ra, luai_nummod(nb, nc)); return;
-+ case TM_POW: setnvalue(ra, luai_numpow(nb, nc)); return;
-+ case TM_UNM: setnvalue(ra, luai_numunm(nb)); return;
-+ default: lua_assert(0);
-+ }
-+ }
-+
-+ /* Either operand not a number */
-+ if (!call_binTM(L, rb, rc, ra, op))
-+ luaG_aritherror(L, rb, rc);
-+}
-
-+/* Helper macro to sort arithmetic operations into four categories:
-+ * TK_INT: integer - integer operands
-+ * TK_NUMBER: number - number (non complex, either may be integer)
-+ * TK_NUMBER2: complex numbers (at least the other)
-+ * 0: non-numeric (at least the other)
-+*/
-+#ifdef LNUM_COMPLEX
-+static inline int arith_mode( const TValue *rb, const TValue *rc ) {
-+ if (ttisint(rb) && ttisint(rc)) return TK_INT;
-+ if (ttiscomplex(rb) || ttiscomplex(rc)) return TK_NUMBER2;
-+ if (ttisnumber(rb) && ttisnumber(rc)) return TK_NUMBER;
-+ return 0;
-+}
-+#else
-+# define arith_mode(rb,rc) \
-+ ( (ttisint(rb) && ttisint(rc)) ? TK_INT : \
-+ (ttisnumber(rb) && ttisnumber(rc)) ? TK_NUMBER : 0 )
-+#endif
-+
-+/* arith_op macro for two operators:
-+ * automatically chooses, which function (number, integer, complex) to use
-+ */
-+#define ARITH_OP2_START( op_num, op_int ) \
-+ int failed= 0; \
-+ switch( arith_mode(rb,rc) ) { \
-+ case TK_INT: \
-+ if (op_int ( &(ra)->value.i, ivalue(rb), ivalue(rc) )) \
-+ { ra->tt= LUA_TINT; break; } /* else flow through */ \
-+ case TK_NUMBER: \
-+ setnvalue(ra, op_num ( nvalue(rb), nvalue(rc) )); break;
-+
-+#define ARITH_OP2_END \
-+ default: \
-+ failed= 1; break; \
-+ } if (!failed) continue;
-+
-+#define arith_op_continue_scalar( op_num, op_int ) \
-+ ARITH_OP2_START( op_num, op_int ) \
-+ ARITH_OP2_END
-+
-+#ifdef LNUM_COMPLEX
-+# define arith_op_continue( op_num, op_int, op_complex ) \
-+ ARITH_OP2_START( op_num, op_int ) \
-+ case TK_NUMBER2: \
-+ setnvalue_complex( ra, op_complex ( nvalue_complex(rb), nvalue_complex(rc) ) ); break; \
-+ ARITH_OP2_END
-+#else
-+# define arith_op_continue(op_num,op_int,_) arith_op_continue_scalar(op_num,op_int)
-+#endif
-+
-+/* arith_op macro for one operator:
-+ */
-+#define ARITH_OP1_START( op_num, op_int ) \
-+ int failed= 0; \
-+ switch( arith_mode(rb,rb) ) { \
-+ case TK_INT: \
-+ if (op_int ( &(ra)->value.i, ivalue(rb) )) \
-+ { ra->tt= LUA_TINT; break; } /* else flow through */ \
-+ case TK_NUMBER: \
-+ setnvalue(ra, op_num (nvalue(rb))); break; \
-+
-+#define ARITH_OP1_END \
-+ default: \
-+ failed= 1; break; \
-+ } if (!failed) continue;
-+
-+#ifdef LNUM_COMPLEX
-+# define arith_op1_continue( op_num, op_int, op_complex ) \
-+ ARITH_OP1_START( op_num, op_int ) \
-+ case TK_NUMBER2: \
-+ setnvalue_complex( ra, op_complex ( nvalue_complex_fast(rb) )); break; \
-+ ARITH_OP1_END
-+#else
-+# define arith_op1_continue( op_num, op_int, _ ) \
-+ ARITH_OP1_START( op_num, op_int ) \
-+ ARITH_OP1_END
-+#endif
-
-
- void luaV_execute (lua_State *L, int nexeccalls) {
-@@ -468,38 +661,45 @@ void luaV_execute (lua_State *L, int nex
- continue;
- }
- case OP_ADD: {
-- arith_op(luai_numadd, TM_ADD);
-+ TValue *rb = RKB(i), *rc= RKC(i);
-+ arith_op_continue( luai_numadd, try_addint, luai_vectadd );
-+ Protect(Arith(L, ra, rb, rc, TM_ADD)); \
- continue;
- }
- case OP_SUB: {
-- arith_op(luai_numsub, TM_SUB);
-+ TValue *rb = RKB(i), *rc= RKC(i);
-+ arith_op_continue( luai_numsub, try_subint, luai_vectsub );
-+ Protect(Arith(L, ra, rb, rc, TM_SUB));
- continue;
- }
- case OP_MUL: {
-- arith_op(luai_nummul, TM_MUL);
-+ TValue *rb = RKB(i), *rc= RKC(i);
-+ arith_op_continue(luai_nummul, try_mulint, luai_vectmul);
-+ Protect(Arith(L, ra, rb, rc, TM_MUL));
- continue;
- }
- case OP_DIV: {
-- arith_op(luai_numdiv, TM_DIV);
-+ TValue *rb = RKB(i), *rc= RKC(i);
-+ arith_op_continue(luai_numdiv, try_divint, luai_vectdiv);
-+ Protect(Arith(L, ra, rb, rc, TM_DIV));
- continue;
- }
- case OP_MOD: {
-- arith_op(luai_nummod, TM_MOD);
-+ TValue *rb = RKB(i), *rc= RKC(i);
-+ arith_op_continue_scalar(luai_nummod, try_modint); /* scalars only */
-+ Protect(Arith(L, ra, rb, rc, TM_MOD));
- continue;
- }
- case OP_POW: {
-- arith_op(luai_numpow, TM_POW);
-+ TValue *rb = RKB(i), *rc= RKC(i);
-+ arith_op_continue(luai_numpow, try_powint, luai_vectpow);
-+ Protect(Arith(L, ra, rb, rc, TM_POW));
- continue;
- }
- case OP_UNM: {
- TValue *rb = RB(i);
-- if (ttisnumber(rb)) {
-- lua_Number nb = nvalue(rb);
-- setnvalue(ra, luai_numunm(nb));
-- }
-- else {
-- Protect(Arith(L, ra, rb, rb, TM_UNM));
-- }
-+ arith_op1_continue(luai_numunm, try_unmint, luai_vectunm);
-+ Protect(Arith(L, ra, rb, rb, TM_UNM));
- continue;
- }
- case OP_NOT: {
-@@ -511,11 +711,11 @@ void luaV_execute (lua_State *L, int nex
- const TValue *rb = RB(i);
- switch (ttype(rb)) {
- case LUA_TTABLE: {
-- setnvalue(ra, cast_num(luaH_getn(hvalue(rb))));
-+ setivalue(ra, luaH_getn(hvalue(rb)));
- break;
- }
- case LUA_TSTRING: {
-- setnvalue(ra, cast_num(tsvalue(rb)->len));
-+ setivalue(ra, tsvalue(rb)->len);
- break;
- }
- default: { /* try metamethod */
-@@ -648,14 +848,30 @@ void luaV_execute (lua_State *L, int nex
- }
- }
- case OP_FORLOOP: {
-- lua_Number step = nvalue(ra+2);
-- lua_Number idx = luai_numadd(nvalue(ra), step); /* increment index */
-- lua_Number limit = nvalue(ra+1);
-- if (luai_numlt(0, step) ? luai_numle(idx, limit)
-- : luai_numle(limit, idx)) {
-- dojump(L, pc, GETARG_sBx(i)); /* jump back */
-- setnvalue(ra, idx); /* update internal index... */
-- setnvalue(ra+3, idx); /* ...and external index */
-+ /* If start,step and limit are all integers, we don't need to check
-+ * against overflow in the looping.
-+ */
-+ if (ttisint(ra) && ttisint(ra+1) && ttisint(ra+2)) {
-+ lua_Integer step = ivalue(ra+2);
-+ lua_Integer idx = ivalue(ra) + step; /* increment index */
-+ lua_Integer limit = ivalue(ra+1);
-+ if (step > 0 ? (idx <= limit) : (limit <= idx)) {
-+ dojump(L, pc, GETARG_sBx(i)); /* jump back */
-+ setivalue(ra, idx); /* update internal index... */
-+ setivalue(ra+3, idx); /* ...and external index */
-+ }
-+ } else {
-+ /* non-integer looping (don't use 'nvalue_fast', some may be integer!)
-+ */
-+ lua_Number step = nvalue(ra+2);
-+ lua_Number idx = luai_numadd(nvalue(ra), step); /* increment index */
-+ lua_Number limit = nvalue(ra+1);
-+ if (luai_numlt(0, step) ? luai_numle(idx, limit)
-+ : luai_numle(limit, idx)) {
-+ dojump(L, pc, GETARG_sBx(i)); /* jump back */
-+ setnvalue(ra, idx); /* update internal index... */
-+ setnvalue(ra+3, idx); /* ...and external index */
-+ }
- }
- continue;
- }
-@@ -664,13 +880,21 @@ void luaV_execute (lua_State *L, int nex
- const TValue *plimit = ra+1;
- const TValue *pstep = ra+2;
- L->savedpc = pc; /* next steps may throw errors */
-+ /* Using same location for tonumber's both arguments, effectively does
-+ * in-place modification (string->number). */
- if (!tonumber(init, ra))
- luaG_runerror(L, LUA_QL("for") " initial value must be a number");
- else if (!tonumber(plimit, ra+1))
- luaG_runerror(L, LUA_QL("for") " limit must be a number");
- else if (!tonumber(pstep, ra+2))
- luaG_runerror(L, LUA_QL("for") " step must be a number");
-- setnvalue(ra, luai_numsub(nvalue(ra), nvalue(pstep)));
-+ /* Step back one value (keep within integers if we can)
-+ */
-+ if (!( ttisint(ra) && ttisint(pstep) &&
-+ try_subint( &ra->value.i, ivalue(ra), ivalue(pstep) ) )) {
-+ /* don't use 'nvalue_fast()', values may be integer */
-+ setnvalue(ra, luai_numsub(nvalue(ra), nvalue(pstep)));
-+ }
- dojump(L, pc, GETARG_sBx(i));
- continue;
- }
-@@ -707,7 +931,7 @@ void luaV_execute (lua_State *L, int nex
- luaH_resizearray(L, h, last); /* pre-alloc it at once */
- for (; n > 0; n--) {
- TValue *val = ra+n;
-- setobj2t(L, luaH_setnum(L, h, last--), val);
-+ setobj2t(L, luaH_setint(L, h, last--), val);
- luaC_barriert(L, h, val);
- }
- continue;
---- a/src/lvm.h
-+++ b/src/lvm.h
-@@ -15,11 +15,9 @@
-
- #define tostring(L,o) ((ttype(o) == LUA_TSTRING) || (luaV_tostring(L, o)))
-
--#define tonumber(o,n) (ttype(o) == LUA_TNUMBER || \
-- (((o) = luaV_tonumber(o,n)) != NULL))
-+#define tonumber(o,n) (ttisnumber(o) || (((o) = luaV_tonumber(o,n)) != NULL))
-
--#define equalobj(L,o1,o2) \
-- (ttype(o1) == ttype(o2) && luaV_equalval(L, o1, o2))
-+#define equalobj(L,o1,o2) (ttype_ext_same(o1,o2) && luaV_equalval(L, o1, o2))
-
-
- LUAI_FUNC int luaV_lessthan (lua_State *L, const TValue *l, const TValue *r);
---- a/src/print.c
-+++ b/src/print.c
-@@ -14,6 +14,7 @@
- #include "lobject.h"
- #include "lopcodes.h"
- #include "lundump.h"
-+#include "lnum.h"
-
- #define PrintFunction luaU_print
-
-@@ -59,8 +60,16 @@ static void PrintConstant(const Proto* f
- case LUA_TBOOLEAN:
- printf(bvalue(o) ? "true" : "false");
- break;
-+ case LUA_TINT:
-+ printf(LUA_INTEGER_FMT,ivalue(o));
-+ break;
- case LUA_TNUMBER:
-- printf(LUA_NUMBER_FMT,nvalue(o));
-+#ifdef LNUM_COMPLEX
-+ // TBD: Do we get complex values here?
-+ { lua_Number b= nvalue_img_fast(o);
-+ printf( LUA_NUMBER_FMT "%s" LUA_NUMBER_FMT "i", nvalue_fast(o), b>=0 ? "+":"", b ); }
-+#endif
-+ printf(LUA_NUMBER_FMT,nvalue_fast(o));
- break;
- case LUA_TSTRING:
- PrintString(rawtsvalue(o));
projects / openwrt / staging / jow.git / commitdiff