Question

How to declare array of constant known size in C

Answer 1

#include <stdio.h>
 
int main(void)
{
    int n[3]; 
    char ch[sizeof(double)]; 
    
    enum { SIZE = 13 };
    int arr[SIZE]; 
    
    printf("%lu\n", sizeof n); 
    printf("%lu\n", sizeof ch); 
    printf("%lu\n", sizeof arr); 
    
    return 0;
}

 
/*
run:

12
8
52

*/

 

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