ft_calloc.c File Reference

#include "../includes/libft.h"

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Functions
void *	ft_calloc (size_t nmemb, size_t size)
	Allocates and zero-initializes an array.

Function Documentation

ft_calloc()

void * ft_calloc	(	size_t	nmemb,
		size_t	size
	)

Allocates and zero-initializes an array.

Allocates memory for nmemb elements of size bytes each and sets all allocated bytes to zero. Returns NULL on overflow or allocation failure.

Parameters

nmemb	Number of elements.
size	Size of each element in bytes.

Returns

Pointer to allocated memory, or NULL on failure.

Definition at line 26 of file ft_calloc.c.

{
    void    *ptr;
    size_t  total_size;
 
    if (nmemb == 0 || size == 0)
        return (malloc(0));
    if (nmemb > (size_t)-1 / size)
        return (NULL);
    total_size = nmemb * size;
    ptr = malloc(total_size);
    if (!ptr)
        return (NULL);
    ft_memset(ptr, 0, total_size);
    return (ptr);
}

References ft_memset().

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