1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // UNSUPPORTED: c++98, c++03, c++11 11 12 // <experimental/any> 13 14 // template <class ValueType> 15 // ValueType any_cast(any const &); 16 17 // Try and cast away const. 18 19 #include <experimental/any> 20 21 struct TestType {}; 22 struct TestType2 {}; 23 24 int main() 25 { 26 using std::experimental::any; 27 using std::experimental::any_cast; 28 29 any a; 30 31 // expected-error@experimental/any:* 2 {{binding value of type '_Tp' (aka 'const TestType') to reference to type 'TestType' drops 'const' qualifier}} 32 any_cast<TestType &>(static_cast<any const&>(a)); // expected-note {{requested here}} 33 any_cast<TestType &&>(static_cast<any const&>(a)); // expected-note {{requested here}} 34 35 // expected-error@experimental/any:* 2 {{binding value of type '_Tp' (aka 'const TestType2') to reference to type 'TestType2' drops 'const' qualifier}} 36 any_cast<TestType2 &>(static_cast<any const&&>(a)); // expected-note {{requested here}} 37 any_cast<TestType2 &&>(static_cast<any const&&>(a)); // expected-note {{requested here}} 38 } 39
