c - How does the sum = sum + array work in this for loop? (I know how for loops work)

Question

Closed. This question needs details or clarity. It is not currently accepting answers. question from:https://stackoverflow.com/questions/65932767/how-does-the-sum-sum-array-work-in-this-for-loop-i-know-how-for-loops-work

Answer 1

try it and see what happens

#include <stdio.h>

float addition(int length, int array[])

{
    int sum = 0;
    for(int i = 0; i < length; i++)
    {
        printf("about to evaluate %d = %d + %d", sum+array[i], sum, array[i]);
        sum = sum + array[i];
        printf("...pass %d sum %d
", i+1, sum);
        
        }
return  sum;
}

int main() {
int data[]={50,12};
printf("final result %f
", addition(2, data));
return 0;
}

y u don't say what platform you are using to develop but debugging tools can allow introspection of what is happening inside a running program. If you want to see what happens in these kind of situations, debuggers are great