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/*

** $Id: lvm.h,v 2.14 2009/12/17 16:20:01 roberto Exp $

** Lua virtual machine

** See Copyright Notice in lua.h

*/

#ifndef lvm_h

#define lvm_h

#include "ldo.h"

#include "lobject.h"

#include "ltm.h"

#define tostring(L,o) (ttisstring(o) || (luaV_tostring(L, o)))

#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))

/* not to called directly */

LUAI_FUNC int luaV_equalval_ (lua_State *L, const TValue *t1, const TValue *t2);

LUAI_FUNC int luaV_lessthan (lua_State *L, const TValue *l, const TValue *r);

LUAI_FUNC int luaV_lessequal (lua_State *L, const TValue *l, const TValue *r);

LUAI_FUNC const TValue *luaV_tonumber (const TValue *obj, TValue *n);

LUAI_FUNC int luaV_tostring (lua_State *L, StkId obj);

LUAI_FUNC void luaV_gettable (lua_State *L, const TValue *t, TValue *key,

                                            StkId val);

LUAI_FUNC void luaV_settable (lua_State *L, const TValue *t, TValue *key,

                                            StkId val);

LUAI_FUNC void luaV_finishOp (lua_State *L);

LUAI_FUNC void luaV_execute (lua_State *L);

LUAI_FUNC void luaV_concat (lua_State *L, int total);

LUAI_FUNC void luaV_arith (lua_State *L, StkId ra, const TValue *rb,

                           const TValue *rc, TMS op);

LUAI_FUNC void luaV_objlen (lua_State *L, StkId ra, const TValue *rb);

#endif