Inserting a breakable call

gistfile1.txt

/* Another option which is more reasonable if you're willing to recompile is to insert a call to a trap function
 * could be __builtin_trap() for GCC, or DebugBreak/__debugbreak for MSVC, or your own function like this: /

static void PoorMansBreakpoint() {
    printf(""); /* stick a breakpoint on this line */
}

int fugbug(int a, int b) {
	return (a + b < 10)
		? 8
		: (PoorMansBreakpoint(), 3); /* the ever-useful comma operator */
}

int main(void) {
	fugbug(5, 2);
	return 0;
}