Question

How to use const in C

Answer 1

#include <stdio.h>

int main() {
    int n = 20;
    const int cn = 7;
    
    printf("%d %d\n", n, cn);
    
    n = 900;
    // cn = 800; // error: assignment of read-only variable ‘cn’
    
    printf("%d %d\n", n, cn);
 
    return 0;

}
 
 
 
/*
run:
 
20 7
900 7

*/

 

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