Question

How to use array parameter with const in function using C

Answer 1

#include <stdio.h>

void f(const double arr[static const 10], int size) {
    for (int i = 0; i < size; i++) {
        // arr[i] = 763.84; // error: assignment of read-only location
        printf("%lf\n", arr[i]);
    }
}

int main(void)
{
    double arr[5] = {2.4, 0.1, 4.8, 4.67};
    
    f(arr, 5); // warning: ‘f’ reading 80 bytes from a region of size 40
}
  
  
  
/*
run:
  
2.400000
0.100000
4.800000
4.670000
0.000000
  
*/

 

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