Question

How to assign a new array values in a function in C

Answer 1

#include <stdio.h>

void setValues(int *arr, int size) {
    for (int i = 0; i < 5; i++) {
        arr[i] = (i + 1) * 2;
    }
}

int main()
{
    int arr[5];
    int size = *(&arr + 1) - arr;

    setValues(arr, size);
    
    for (int i = 0; i < size; i++) {
        printf("%d ", arr[i]);
    }

    return 0;
}


          
/*
run:
       
2 4 6 8 10 

*/

 

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