Question

The following code segfaults whenever I use short-circuit-or (|), and compiles flawlessly when not short-circuited (||)?

Compiled using gcc -Wall ../IsNull/IsNull.c ../IsEmpty/IsEmpty.c *.c -o IsNullOrEmpty:

#include <stdbool.h>

#include "../IsNull/IsNull.h"
#include "../IsEmpty/IsEmpty.h"

#include "IsNullOrEmpty.h"

_Bool isNullOrEmpty (char *str);

_Bool isNullOrEmpty (char *str) {
    return (isNull (str) | isEmpty (str));     
} /* end of isNullOrEmpty() */

Answer 1

You should be using || (logical or operator) instead of | (bitwise or operator). The former short-circuits whilst the latter does not, hence the segmentation fault.