Hint: his example is fine (and thus, Ted is wrong).
But, since Ted is OpenBSD.. here come the downvotes.
As the poster below states, the example in the last link of Ted's posting has overflow problems.
/*compare.c*/
#include <stdio.h>
int compare( int x, int y )
{
return x - y;
}
void testCompare( int x, int y )
{
if ( compare( x, y ) < 0 )
{
printf( "%d is less than %d\n", x, y );
}
else
{
printf( "%d is greater than or equal to %d\n", x, y );
}
}
int main()
{
testCompare( 5, 10 );
testCompare( 10, 5 );
testCompare( 1987654321, -1987654321 );
return 0;
}
$ ./compare
5 is less than 10
10 is greater than or equal to 5
1987654321 is less than -1987654321