Calloc in C | Calloc Function in C

Calloc Function in C


How to use calloc

The below calloc program in C calculates the sum of an arithmetic sequence.

#include <stdio.h>
    int main() {
        int i, * ptr, sum = 0;
        ptr = calloc(10, sizeof(int));
        if (ptr == NULL) {
            printf("Error! memory not allocated.");
            exit(0);
        }
        printf("Building and calculating the sequence sum of the first 10 terms \ n ");
        for (i = 0; i < 10; ++i) { * (ptr + i) = i;
            sum += * (ptr + i);
        }
        printf("Sum = %d", sum);
        free(ptr);
        return 0;
    }

Result of the calloc in C example:

 
Building and calculating the sequence sum of the first 10 terms
Sum = 45