calloc.c

来自「c21Examples.rar」· C语言 代码 · 共 23 行

/* Demonstrates calloc(). */

#include <stdlib.h>
#include <stdio.h>

int main( void )
{
    unsigned long num;
    int *ptr;

    printf("Enter the number of type int to allocate: ");
    scanf("%ld", &num);

    ptr = (int*)calloc(num, sizeof(long long));

    if (ptr != NULL)
        puts("Memory allocation was successful.");
    else
        puts("Memory allocation failed.");
    return 0;
}