Lua 5.3.0-work15.3.0-work1

1 files changed, 22 insertions, 121 deletions

diff --git a/src/lobject.h b/src/lobject.h
index dd23b914..55b4e240 100644
--- a/src/lobject.h
+++ b/src/lobject.h
@@ -1,5 +1,5 @@
 /*
-** $Id: lobject.h,v 2.71 2012/09/11 18:21:44 roberto Exp $
+** $Id: lobject.h,v 2.78 2013/05/14 15:59:04 roberto Exp $
 ** Type definitions for Lua objects
 ** See Copyright Notice in lua.h
 */
@@ -57,6 +57,11 @@
 #define LUA_TLNGSTR	(LUA_TSTRING | (1 << 4))  /* long strings */
 
 
+/* Variant tags for numbers */
+#define LUA_TNUMFLT	(LUA_TNUMBER | (0 << 4))  /* float numbers */
+#define LUA_TNUMINT	(LUA_TNUMBER | (1 << 4))  /* integer numbers */
+
+
 /* Bit mark for collectable types */
 #define BIT_ISCOLLECTABLE	(1 << 6)
 
@@ -92,8 +97,6 @@ typedef struct GCheader {
 typedef union Value Value;
 
 
-#define numfield	lua_Number n;    /* numbers */
-
 
 
 /*
@@ -111,7 +114,6 @@ typedef struct lua_TValue TValue;
 
 
 #define val_(o)		((o)->value_)
-#define num_(o)		(val_(o).n)
 
 
 /* raw type tag of a TValue */
@@ -124,13 +126,15 @@ typedef struct lua_TValue TValue;
 #define ttype(o)	(rttype(o) & 0x3F)
 
 /* type tag of a TValue with no variants (bits 0-3) */
-#define ttypenv(o)	(novariant(rttype(o)))
+#define ttnov(o)	(novariant(rttype(o)))
 
 
 /* Macros to test type */
 #define checktag(o,t)		(rttype(o) == (t))
-#define checktype(o,t)		(ttypenv(o) == (t))
-#define ttisnumber(o)		checktag((o), LUA_TNUMBER)
+#define checktype(o,t)		(ttnov(o) == (t))
+#define ttisnumber(o)		checktype((o), LUA_TNUMBER)
+#define ttisfloat(o)		checktag((o), LUA_TNUMFLT)
+#define ttisinteger(o)		checktag((o), LUA_TNUMINT)
 #define ttisnil(o)		checktag((o), LUA_TNIL)
 #define ttisboolean(o)		checktag((o), LUA_TBOOLEAN)
 #define ttislightuserdata(o)	checktag((o), LUA_TLIGHTUSERDATA)
@@ -147,10 +151,10 @@ typedef struct lua_TValue TValue;
 #define ttisthread(o)		checktag((o), ctb(LUA_TTHREAD))
 #define ttisdeadkey(o)		checktag((o), LUA_TDEADKEY)
 
-#define ttisequal(o1,o2)	(rttype(o1) == rttype(o2))
 
 /* Macros to access values */
-#define nvalue(o)	check_exp(ttisnumber(o), num_(o))
+#define ivalue(o)	check_exp(ttisinteger(o), val_(o).i)
+#define fltvalue(o)	check_exp(ttisfloat(o), val_(o).n)
 #define gcvalue(o)	check_exp(iscollectable(o), val_(o).gc)
 #define pvalue(o)	check_exp(ttislightuserdata(o), val_(o).p)
 #define rawtsvalue(o)	check_exp(ttisstring(o), &val_(o).gc->ts)
@@ -185,7 +189,10 @@ typedef struct lua_TValue TValue;
 #define settt_(o,t)	((o)->tt_=(t))
 
 #define setnvalue(obj,x) \
-  { TValue *io=(obj); num_(io)=(x); settt_(io, LUA_TNUMBER); }
+  { TValue *io=(obj); val_(io).n=(x); settt_(io, LUA_TNUMFLT); }
+
+#define setivalue(obj,x) \
+  { TValue *io=(obj); val_(io).i=(x); settt_(io, LUA_TNUMINT); }
 
 #define setnilvalue(obj) settt_(obj, LUA_TNIL)
 
@@ -267,115 +274,6 @@ typedef struct lua_TValue TValue;
 #define luai_checknum(L,o,c)	{ /* empty */ }
 
 
-/*
-** {======================================================
-** NaN Trick
-** =======================================================
-*/
-#if defined(LUA_NANTRICK)
-
-/*
-** numbers are represented in the 'd_' field. All other values have the
-** value (NNMARK | tag) in 'tt__'. A number with such pattern would be
-** a "signaled NaN", which is never generated by regular operations by
-** the CPU (nor by 'strtod')
-*/
-
-/* allows for external implementation for part of the trick */
-#if !defined(NNMARK)	/* { */
-
-
-#if !defined(LUA_IEEEENDIAN)
-#error option 'LUA_NANTRICK' needs 'LUA_IEEEENDIAN'
-#endif
-
-
-#define NNMARK		0x7FF7A500
-#define NNMASK		0x7FFFFF00
-
-#undef TValuefields
-#undef NILCONSTANT
-
-#if (LUA_IEEEENDIAN == 0)	/* { */
-
-/* little endian */
-#define TValuefields  \
-	union { struct { Value v__; int tt__; } i; double d__; } u
-#define NILCONSTANT	{{{NULL}, tag2tt(LUA_TNIL)}}
-/* field-access macros */
-#define v_(o)		((o)->u.i.v__)
-#define d_(o)		((o)->u.d__)
-#define tt_(o)		((o)->u.i.tt__)
-
-#else				/* }{ */
-
-/* big endian */
-#define TValuefields  \
-	union { struct { int tt__; Value v__; } i; double d__; } u
-#define NILCONSTANT	{{tag2tt(LUA_TNIL), {NULL}}}
-/* field-access macros */
-#define v_(o)		((o)->u.i.v__)
-#define d_(o)		((o)->u.d__)
-#define tt_(o)		((o)->u.i.tt__)
-
-#endif				/* } */
-
-#endif			/* } */
-
-
-/* correspondence with standard representation */
-#undef val_
-#define val_(o)		v_(o)
-#undef num_
-#define num_(o)		d_(o)
-
-
-#undef numfield
-#define numfield	/* no such field; numbers are the entire struct */
-
-/* basic check to distinguish numbers from non-numbers */
-#undef ttisnumber
-#define ttisnumber(o)	((tt_(o) & NNMASK) != NNMARK)
-
-#define tag2tt(t)	(NNMARK | (t))
-
-#undef rttype
-#define rttype(o)	(ttisnumber(o) ? LUA_TNUMBER : tt_(o) & 0xff)
-
-#undef settt_
-#define settt_(o,t)	(tt_(o) = tag2tt(t))
-
-#undef setnvalue
-#define setnvalue(obj,x) \
-	{ TValue *io_=(obj); num_(io_)=(x); lua_assert(ttisnumber(io_)); }
-
-#undef setobj
-#define setobj(L,obj1,obj2) \
-	{ const TValue *o2_=(obj2); TValue *o1_=(obj1); \
-	  o1_->u = o2_->u; \
-	  checkliveness(G(L),o1_); }
-
-
-/*
-** these redefinitions are not mandatory, but these forms are more efficient
-*/
-
-#undef checktag
-#undef checktype
-#define checktag(o,t)	(tt_(o) == tag2tt(t))
-#define checktype(o,t)	(ctb(tt_(o) | VARBITS) == ctb(tag2tt(t) | VARBITS))
-
-#undef ttisequal
-#define ttisequal(o1,o2)  \
-	(ttisnumber(o1) ? ttisnumber(o2) : (tt_(o1) == tt_(o2)))
-
-
-#undef luai_checknum
-#define luai_checknum(L,o,c)	{ if (!ttisnumber(o)) c; }
-
-#endif
-/* }====================================================== */
-
 
 
 /*
@@ -390,7 +288,8 @@ union Value {
   void *p;         /* light userdata */
   int b;           /* booleans */
   lua_CFunction f; /* light C functions */
-  numfield         /* numbers */
+  lua_Integer i;   /* integer numbers */
+  lua_Number n;    /* float numbers */
 };
 
 
@@ -594,8 +493,10 @@ LUAI_DDEC const TValue luaO_nilobject_;
 LUAI_FUNC int luaO_int2fb (unsigned int x);
 LUAI_FUNC int luaO_fb2int (int x);
 LUAI_FUNC int luaO_ceillog2 (unsigned int x);
-LUAI_FUNC lua_Number luaO_arith (int op, lua_Number v1, lua_Number v2);
+LUAI_FUNC void luaO_arith (lua_State *L, int op, const TValue *p1,
+                           const TValue *p2, TValue *res);
 LUAI_FUNC int luaO_str2d (const char *s, size_t len, lua_Number *result);
+LUAI_FUNC int luaO_str2int (const char *s, size_t len, lua_Integer *result);
 LUAI_FUNC int luaO_hexavalue (int c);
 LUAI_FUNC const char *luaO_pushvfstring (lua_State *L, const char *fmt,
                                                        va_list argp);