Function luaM_realloc_

src/lmem.cpp:176–189

** Generic allocation routine. */

** Generic allocation routine.
*/
void *luaM_realloc_ (lua_State *L, void *block, size_t osize, size_t nsize) {
  void *newblock;
  global_State *g = G(L);
  lua_assert((osize == 0) == (block == NULL));
  newblock = firsttry(g, block, osize, nsize);
  if (l_unlikely(newblock == NULL && nsize > 0)) {
    newblock = tryagain(L, block, osize, nsize);
    if (newblock == NULL)  /* still no memory? */
      return NULL;  /* do not update 'GCdebt' */
  }
  lua_assert((nsize == 0) == (newblock == NULL));
  g->GCdebt -= cast(l_mem, nsize) - cast(l_mem, osize);
  return newblock;
}


void *luaM_saferealloc_ (lua_State *L, void *block, size_t osize,