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[Frama-c-discuss] operator %

  • Subject: [Frama-c-discuss] operator %
  • From: omar.chebaro at cea.fr (Omar Chebaro)
  • Date: Mon, 06 Apr 2009 11:10:16 +0200
Hello,

This program is intended to produce a table showing modular arithmetic,
unfortunately this program is bugged, 

analyzing it with frama-c (jessie and value analysis), I was expecting a
division by zero warning or message, but frama-c completely ignored that
fact. am I missing something ?

the program is :

void print_mod(int i, int n) {
	int ans = 0;
	if( n == 0 && i == 0 ) return;
	
	ans = i % n;
	printf( "%d mod %d == %d\n", i, n, ans );
}

int main() {
	int i, j;
	for( i = 0; i < 10; i++ )
		for(j = 0; j < 10; j++ )
			print_mod( i, j );
	return 0;
}

Regards
Omar