Question

How to stop a program in compile time when the size of an array is less than a specific size in C

Answer 1

#include <stdio.h>
#include <assert.h>

int main()
{
    char p[1] = "";

    assert(sizeof p >= 2);

    return 0;
}



/*
run:

Assertion failed: sizeof p >= 2, file C:\src\main.c, line 8

*/

 

Learn SQL from A to Z at LearnSQL.com