7-3

7-3.c

#include <stdio.h>

float sum_array (float array[], int n) {
    float a = 0.0;
    int   i;

    for (i=0; i<n; i++)
        a += array[i];

    return a;
}

int main () {
    float a[] = {1.0, 2.0, 3.0};
    float r   = sum_array(a, 3);

    printf("%f\n", r);

    return 0;
}