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source: code/branches/ceguilua/src/lua/lmem.h @ 1975

Last change on this file since 1975 was 1806, checked in by rgrieder, 16 years ago

added single 5.1.3 directory for lua since CEGUILua 0.5 can also build against lua 5.1

  • Property svn:eol-style set to native
File size: 1.5 KB
Line 
1/*
2** $Id: lmem.h,v 1.31.1.1 2007/12/27 13:02:25 roberto Exp $
3** Interface to Memory Manager
4** See Copyright Notice in lua.h
5*/
6
7#ifndef lmem_h
8#define lmem_h
9
10
11#include <stddef.h>
12
13#include "llimits.h"
14#include "lua.h"
15
16#define MEMERRMSG       "not enough memory"
17
18
19#define luaM_reallocv(L,b,on,n,e) \
20        ((cast(size_t, (n)+1) <= MAX_SIZET/(e)) ?  /* +1 to avoid warnings */ \
21                luaM_realloc_(L, (b), (on)*(e), (n)*(e)) : \
22                luaM_toobig(L))
23
24#define luaM_freemem(L, b, s)   luaM_realloc_(L, (b), (s), 0)
25#define luaM_free(L, b)         luaM_realloc_(L, (b), sizeof(*(b)), 0)
26#define luaM_freearray(L, b, n, t)   luaM_reallocv(L, (b), n, 0, sizeof(t))
27
28#define luaM_malloc(L,t)        luaM_realloc_(L, NULL, 0, (t))
29#define luaM_new(L,t)           cast(t *, luaM_malloc(L, sizeof(t)))
30#define luaM_newvector(L,n,t) \
31                cast(t *, luaM_reallocv(L, NULL, 0, n, sizeof(t)))
32
33#define luaM_growvector(L,v,nelems,size,t,limit,e) \
34          if ((nelems)+1 > (size)) \
35            ((v)=cast(t *, luaM_growaux_(L,v,&(size),sizeof(t),limit,e)))
36
37#define luaM_reallocvector(L, v,oldn,n,t) \
38   ((v)=cast(t *, luaM_reallocv(L, v, oldn, n, sizeof(t))))
39
40
41LUAI_FUNC void *luaM_realloc_ (lua_State *L, void *block, size_t oldsize,
42                                                          size_t size);
43LUAI_FUNC void *luaM_toobig (lua_State *L);
44LUAI_FUNC void *luaM_growaux_ (lua_State *L, void *block, int *size,
45                               size_t size_elem, int limit,
46                               const char *errormsg);
47
48#endif
49
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