libft/ft_realloc.c
2023-12-12 17:30:46 +01:00

36 lines
1.2 KiB
C
Executable File

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_realloc.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: fgras-ca <fgras-ca@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/11/15 16:31:35 by fgras-ca #+# #+# */
/* Updated: 2023/12/10 13:59:12 by fgras-ca ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
void *ft_realloc(void *ptr, size_t newsize, size_t oldsize)
{
char *newptr;
if (ptr == NULL)
{
return (malloc(newsize));
}
if (newsize <= oldsize)
{
return (ptr);
}
newptr = malloc(newsize);
if (newptr == NULL)
{
return (NULL);
}
ft_memcpy(newptr, ptr, oldsize);
free(ptr);
return (newptr);
}