1 /*
2 ** $Id: lvm.h,v 2.34 2014/08/01 17:24:02 roberto Exp $
3 ** Lua virtual machine
4 ** See Copyright Notice in lua.h
5 */
6 
7 #ifndef lvm_h
8 #define lvm_h
9 
10 
11 #include "ldo.h"
12 #include "lobject.h"
13 #include "ltm.h"
14 
15 
16 #if !defined(LUA_NOCVTN2S)
17 #define cvt2str(o)	ttisnumber(o)
18 #else
19 #define cvt2str(o)	0	/* no conversion from numbers to strings */
20 #endif
21 
22 
23 #if !defined(LUA_NOCVTS2N)
24 #define cvt2num(o)	ttisstring(o)
25 #else
26 #define cvt2num(o)	0	/* no conversion from strings to numbers */
27 #endif
28 
29 
30 #define tonumber(o,n) \
31 	(ttisfloat(o) ? (*(n) = fltvalue(o), 1) : luaV_tonumber_(o,n))
32 
33 #define tointeger(o,i) \
34 	(ttisinteger(o) ? (*(i) = ivalue(o), 1) : luaV_tointeger_(o,i))
35 
36 #define intop(op,v1,v2) l_castU2S(l_castS2U(v1) op l_castS2U(v2))
37 
38 #define luaV_rawequalobj(t1,t2)		luaV_equalobj(NULL,t1,t2)
39 
40 
41 LUAI_FUNC int luaV_equalobj (lua_State *L, const TValue *t1, const TValue *t2);
42 LUAI_FUNC int luaV_lessthan (lua_State *L, const TValue *l, const TValue *r);
43 LUAI_FUNC int luaV_lessequal (lua_State *L, const TValue *l, const TValue *r);
44 LUAI_FUNC int luaV_tonumber_ (const TValue *obj, lua_Number *n);
45 LUAI_FUNC int luaV_tointeger_ (const TValue *obj, lua_Integer *p);
46 LUAI_FUNC void luaV_gettable (lua_State *L, const TValue *t, TValue *key,
47                                             StkId val);
48 LUAI_FUNC void luaV_settable (lua_State *L, const TValue *t, TValue *key,
49                                             StkId val);
50 LUAI_FUNC void luaV_finishOp (lua_State *L);
51 LUAI_FUNC void luaV_execute (lua_State *L);
52 LUAI_FUNC void luaV_concat (lua_State *L, int total);
53 LUAI_FUNC lua_Integer luaV_div (lua_State *L, lua_Integer x, lua_Integer y);
54 LUAI_FUNC lua_Integer luaV_mod (lua_State *L, lua_Integer x, lua_Integer y);
55 LUAI_FUNC lua_Integer luaV_shiftl (lua_Integer x, lua_Integer y);
56 LUAI_FUNC void luaV_objlen (lua_State *L, StkId ra, const TValue *rb);
57 
58 #endif
59