int main() {
int x = 10;
int y = 20;
assert(addByValue(x, y) == 31);
assert(x == 10);
assert(y == 20);
assert(addByReference(x, y) == 31);
assert(x == 11);
assert(y == 20);
//return by value
int value = returnByValue(3, 10);
value++;
assert(result == 13);
result = 0; //reset the result
//return by reference
int reference = returnByReference(3, 10);
reference++;
assert(reference == 14);
}
void f() {
throw returnByReference(); // Should diagnose
// CHECK-MESSAGES: :[[@LINE-1]]:9: warning: throw expression should throw anonymous temporary values instead [misc-throw-by-value-catch-by-reference]
throw returnByValue(); // Should not diagnose
}