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Avoid an extra call to 'concretesize' in 'resizearray'

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Roberto Ierusalimschy
2024-11-27 18:37:29 -03:00
parent 682efe2678
commit 9329eeac3b
1 changed files with 5 additions and 5 deletions
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ltable.c
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@@ -632,14 +632,14 @@ static Value *resizearray (lua_State *L , Table *t,
if (np == NULL) /* allocation error? */ if (np == NULL) /* allocation error? */
return NULL; return NULL;
if (oldasize > 0) { if (oldasize > 0) {
size_t oldasizeb = concretesize(oldasize);
/* move common elements to new position */ /* move common elements to new position */
Value *op = t->array - oldasize; /* real original array */ Value *op = t->array - oldasize; /* real original array */
unsigned tomove = (oldasize < newasize) ? oldasize : newasize; unsigned tomove = (oldasize < newasize) ? oldasize : newasize;
lua_assert(tomove > 0); size_t tomoveb = (oldasize < newasize) ? oldasizeb : newasizeb;
memcpy(np + newasize - tomove, lua_assert(tomoveb > 0);
op + oldasize - tomove, memcpy(np + newasize - tomove, op + oldasize - tomove, tomoveb);
concretesize(tomove)); luaM_freemem(L, op, oldasizeb);
luaM_freemem(L, op, concretesize(oldasize));
} }
return np + newasize; /* shift pointer to the end of value segment */ return np + newasize; /* shift pointer to the end of value segment */
} }