mirror of
https://github.com/lua/lua
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45 lines
1.4 KiB
C
45 lines
1.4 KiB
C
/*
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** $Id: lmem.h,v 1.25 2001/11/28 20:13:13 roberto Exp roberto $
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** Interface to Memory Manager
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** See Copyright Notice in lua.h
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*/
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#ifndef lmem_h
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#define lmem_h
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#include <stddef.h>
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#include "llimits.h"
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#include "lua.h"
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#define MEMERRMSG "not enough memory"
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void *luaM_realloc (lua_State *L, void *oldblock, lu_mem oldsize, lu_mem size);
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void *luaM_growaux (lua_State *L, void *block, int *size, int size_elem,
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int limit, const char *errormsg);
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#define luaM_free(L, b, s) luaM_realloc(L, (b), (s), 0)
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#define luaM_freelem(L, b) luaM_realloc(L, (b), sizeof(*(b)), 0)
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#define luaM_freearray(L, b, n, t) luaM_realloc(L, (b), \
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cast(lu_mem, n)*cast(lu_mem, sizeof(t)), 0)
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#define luaM_malloc(L, t) luaM_realloc(L, NULL, 0, (t))
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#define luaM_new(L, t) cast(t *, luaM_malloc(L, sizeof(t)))
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#define luaM_newvector(L, n,t) cast(t *, luaM_malloc(L, \
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cast(lu_mem, n)*cast(lu_mem, sizeof(t))))
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#define luaM_growvector(L,v,nelems,size,t,limit,e) \
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if (((nelems)+1) > (size)) \
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((v)=cast(t *, luaM_growaux(L,v,&(size),sizeof(t),limit,e)))
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#define luaM_reallocvector(L, v,oldn,n,t) \
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((v)=cast(t *, luaM_realloc(L, v,cast(lu_mem, oldn)*cast(lu_mem, sizeof(t)), \
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cast(lu_mem, n)*cast(lu_mem, sizeof(t)))))
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#endif
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