* Factor out small sizeclass check * Update realloc(p,0) semantics This commit changes the behaviour of realloc(p,0) to be free(p) if p!=nullptr, and malloc(0) if p== nullptr.
* Factor out small sizeclass check * Update realloc(p,0) semantics This commit changes the behaviour of realloc(p,0) to be free(p) if p!=nullptr, and malloc(0) if p== nullptr.