82 lines
4.5 KiB
C++
82 lines
4.5 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
|
|
|
|
namespace std {
|
|
class type_info {};
|
|
}
|
|
|
|
void one() { }
|
|
void two() { } // expected-note 4{{possible target for call}}
|
|
void two(int) { } // expected-note 4{{possible target for call}}
|
|
|
|
template<class T> void twoT() { } // expected-note 5{{possible target for call}}
|
|
template<class T> void twoT(int) { } // expected-note 5{{possible target for call}}
|
|
|
|
template<class T> void oneT() { }
|
|
template<class T, class U> void oneT(U) { }
|
|
/*
|
|
The target can be
|
|
an object or reference being initialized (8.5, 8.5.3),
|
|
the left side of an assignment (5.17),
|
|
a parameter of a function (5.2.2),
|
|
a parameter of a user-defined operator (13.5),
|
|
the return value of a function, operator function, or conversion (6.6.3),
|
|
an explicit type conversion (5.2.3, 5.2.9, 5.4), or
|
|
a non-type template-parameter (14.3.2)
|
|
*/
|
|
//#include <typeinfo>
|
|
template<void (*p)(int)> struct test { };
|
|
|
|
int main()
|
|
{
|
|
one; // expected-warning {{expression result unused}}
|
|
two; // expected-error {{reference to overloaded function could not be resolved; did you mean to call it with no arguments?}}
|
|
oneT<int>; // expected-warning {{expression result unused}}
|
|
twoT<int>; // expected-error {{reference to overloaded function could not be resolved; did you mean to call it?}}
|
|
typeid(oneT<int>); // expected-warning{{expression result unused}}
|
|
sizeof(oneT<int>); // expected-error {{invalid application of 'sizeof' to a function type}}
|
|
sizeof(twoT<int>); //expected-error {{reference to overloaded function could not be resolved; did you mean to call it?}}
|
|
decltype(oneT<int>)* fun = 0;
|
|
|
|
*one; // expected-warning {{expression result unused}}
|
|
*oneT<int>; // expected-warning {{expression result unused}}
|
|
*two; //expected-error {{reference to overloaded function could not be resolved; did you mean to call it with no arguments?}} expected-error {{indirection requires pointer operand}}
|
|
*twoT<int>; //expected-error {{reference to overloaded function could not be resolved; did you mean to call it?}}
|
|
!oneT<int>; // expected-warning {{expression result unused}} expected-warning {{address of function 'oneT<int>' will always evaluate to 'true'}} expected-note {{prefix with the address-of operator to silence this warning}}
|
|
+oneT<int>; // expected-warning {{expression result unused}}
|
|
-oneT<int>; //expected-error {{invalid argument type}}
|
|
oneT<int> == 0; // expected-warning {{equality comparison result unused}} \
|
|
// expected-note {{use '=' to turn this equality comparison into an assignment}}
|
|
0 == oneT<int>; // expected-warning {{equality comparison result unused}}
|
|
0 != oneT<int>; // expected-warning {{inequality comparison result unused}}
|
|
(false ? one : oneT<int>); // expected-warning {{expression result unused}}
|
|
void (*p1)(int); p1 = oneT<int>;
|
|
|
|
int i = (int) (false ? (void (*)(int))twoT<int> : oneT<int>); //expected-error {{incompatible operand}}
|
|
(twoT<int>) == oneT<int>; //expected-error {{reference to overloaded function could not be resolved; did you mean to call it?}} {{cannot resolve overloaded function 'twoT' from context}}
|
|
bool b = oneT<int>; // expected-warning {{address of function 'oneT<int>' will always evaluate to 'true'}} expected-note {{prefix with the address-of operator to silence this warning}}
|
|
void (*p)() = oneT<int>;
|
|
test<oneT<int> > ti;
|
|
void (*u)(int) = oneT<int>;
|
|
|
|
b = (void (*)()) twoT<int>;
|
|
|
|
one < one; //expected-warning {{self-comparison always evaluates to false}} \
|
|
//expected-warning {{expression result unused}}
|
|
|
|
oneT<int> < oneT<int>; //expected-warning {{self-comparison always evaluates to false}} \
|
|
//expected-warning {{expression result unused}}
|
|
|
|
two < two; //expected-error 2 {{reference to overloaded function could not be resolved; did you mean to call it with no arguments?}} expected-error {{invalid operands to binary expression ('void' and 'void')}}
|
|
twoT<int> < twoT<int>; //expected-error {{reference to overloaded function could not be resolved; did you mean to call it?}} {{cannot resolve overloaded function 'twoT' from context}}
|
|
oneT<int> == 0; // expected-warning {{equality comparison result unused}} \
|
|
// expected-note {{use '=' to turn this equality comparison into an assignment}}
|
|
|
|
}
|
|
|
|
struct rdar9108698 {
|
|
template<typename> void f(); // expected-note{{possible target for call}}
|
|
};
|
|
|
|
void test_rdar9108698(rdar9108698 x) {
|
|
x.f<int>; // expected-error{{reference to non-static member function must be called}}
|
|
}
|