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// RUN: %clang_cc1 -fsyntax-only -verify -Wno-constant-conversion %s
void choice(int);
int choice(bool);
void test() {
// Result of ! must be type bool.
int i = choice(!1);
}
// rdar://8018252
void f0() {
extern void f0_1(int*);
register int x;
f0_1(&x);
}
namespace test1 {
template <class T> void bar(T &x) { T::fail(); }
template <class T> void bar(volatile T &x) {}
void test_ints() {
volatile int x;
bar(x = 5);
bar(x += 5);
}
enum E { E_zero };
void test_enums() {
volatile E x;
bar(x = E_zero);
bar(x += E_zero); // expected-error {{incompatible type}}
}
}
int test2(int x) {
return x && 4; // expected-warning {{use of logical '&&' with constant operand}} \
// expected-note {{use '&' for a bitwise operation}} \
// expected-note {{remove constant to silence this warning}}
return x && sizeof(int) == 4; // no warning, RHS is logical op.
return x && true;
return x && false;
return x || true;
return x || false;
return x && (unsigned)0; // expected-warning {{use of logical '&&' with constant operand}} \
// expected-note {{use '&' for a bitwise operation}} \
// expected-note {{remove constant to silence this warning}}
return x || (unsigned)1; // expected-warning {{use of logical '||' with constant operand}} \
// expected-note {{use '|' for a bitwise operation}}
return x || 0; // expected-warning {{use of logical '||' with constant operand}} \
// expected-note {{use '|' for a bitwise operation}}
return x || 1; // expected-warning {{use of logical '||' with constant operand}} \
// expected-note {{use '|' for a bitwise operation}}
return x || -1; // expected-warning {{use of logical '||' with constant operand}} \
// expected-note {{use '|' for a bitwise operation}}
return x || 5; // expected-warning {{use of logical '||' with constant operand}} \
// expected-note {{use '|' for a bitwise operation}}
return x && 0; // expected-warning {{use of logical '&&' with constant operand}} \
// expected-note {{use '&' for a bitwise operation}} \
// expected-note {{remove constant to silence this warning}}
return x && 1; // expected-warning {{use of logical '&&' with constant operand}} \
// expected-note {{use '&' for a bitwise operation}} \
// expected-note {{remove constant to silence this warning}}
return x && -1; // expected-warning {{use of logical '&&' with constant operand}} \
// expected-note {{use '&' for a bitwise operation}} \
// expected-note {{remove constant to silence this warning}}
return x && 5; // expected-warning {{use of logical '&&' with constant operand}} \
// expected-note {{use '&' for a bitwise operation}} \
// expected-note {{remove constant to silence this warning}}
return x || (0); // expected-warning {{use of logical '||' with constant operand}} \
// expected-note {{use '|' for a bitwise operation}}
return x || (1); // expected-warning {{use of logical '||' with constant operand}} \
// expected-note {{use '|' for a bitwise operation}}
return x || (-1); // expected-warning {{use of logical '||' with constant operand}} \
// expected-note {{use '|' for a bitwise operation}}
return x || (5); // expected-warning {{use of logical '||' with constant operand}} \
// expected-note {{use '|' for a bitwise operation}}
return x && (0); // expected-warning {{use of logical '&&' with constant operand}} \
// expected-note {{use '&' for a bitwise operation}} \
// expected-note {{remove constant to silence this warning}}
return x && (1); // expected-warning {{use of logical '&&' with constant operand}} \
// expected-note {{use '&' for a bitwise operation}} \
// expected-note {{remove constant to silence this warning}}
return x && (-1); // expected-warning {{use of logical '&&' with constant operand}} \
// expected-note {{use '&' for a bitwise operation}} \
// expected-note {{remove constant to silence this warning}}
return x && (5); // expected-warning {{use of logical '&&' with constant operand}} \
// expected-note {{use '&' for a bitwise operation}} \
// expected-note {{remove constant to silence this warning}}
}
template<unsigned int A, unsigned int B> struct S
{
enum {
e1 = A && B,
e2 = A && 7 // expected-warning {{use of logical '&&' with constant operand}} \
// expected-note {{use '&' for a bitwise operation}} \
// expected-note {{remove constant to silence this warning}}
};
int foo() {
int x = A && B;
int y = B && 3; // expected-warning {{use of logical '&&' with constant operand}} \
// expected-note {{use '&' for a bitwise operation}} \
// expected-note {{remove constant to silence this warning}}
return x + y;
}
};
void test3() {
S<5, 8> s1;
S<2, 7> s2;
(void)s1.foo();
(void)s2.foo();
}
namespace pr16992 {
typedef int T;
unsigned getsz() {
return (sizeof T());
}
}
void test4() {
#define X 0
#define Y 1
bool r1 = X || Y;
#define Y2 2
bool r2 = X || Y2; // expected-warning {{use of logical '||' with constant operand}} \
// expected-note {{use '|' for a bitwise operation}}
}
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