lua51 0.1.6

Lua 5.1.5 bindings for Rust.
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/*
** $Id: lmem.h,v 1.31.1.1 2007/12/27 13:02:25 roberto Exp $
** Interface to Memory Manager
** See Copyright Notice in lua.h
*/

#ifndef lmem_h
#define lmem_h



#include <stddef.h>

#include "llimits.h"
#include "lua.h"

#define MEMERRMSG    "not enough memory"



#define luaM_reallocv(L, b, on, n, e) \

    ((cast(size_t, (n)+1) <= MAX_SIZET/(e)) ?  /* +1 to avoid warnings */ \
        luaM_realloc_(L, (b), (on)*(e), (n)*(e)) : \
        luaM_toobig(L))

#define luaM_freemem(L, b, s)    luaM_realloc_(L, (b), (s), 0)

#define luaM_free(L, b)        luaM_realloc_(L, (b), sizeof(*(b)), 0)

#define luaM_freearray(L, b, n, t)   luaM_reallocv(L, (b), n, 0, sizeof(t))


#define luaM_malloc(L, t)    luaM_realloc_(L, NULL, 0, (t))

#define luaM_new(L, t)        cast(t *, luaM_malloc(L, sizeof(t)))

#define luaM_newvector(L, n, t) \

        cast(t *, luaM_reallocv(L, NULL, 0, n, sizeof(t)))

#define luaM_growvector(L, v, nelems, size, t, limit, e) \

          if ((nelems)+1 > (size)) \
            ((v)=cast(t *, luaM_growaux_(L,v,&(size),sizeof(t),limit,e)))

#define luaM_reallocvector(L, v, oldn, n, t) \

   ((v)=cast(t *, luaM_reallocv(L, v, oldn, n, sizeof(t))))


LUAI_FUNC void *luaM_realloc_(lua_State *L, void *block, size_t oldsize,
                              size_t size);

LUAI_FUNC void *luaM_toobig(lua_State *L);

LUAI_FUNC void *luaM_growaux_(lua_State *L, void *block, int *size,
                              size_t size_elem, int limit,
                              const char *errormsg);

#endif