// RUN: %clang_cc1 -fsyntax-only -std=c++11 -Wno-unused-value %s -verify // prvalue void prvalue() { auto&& x = []()->void { }; auto& y = []()->void { }; // expected-error{{cannot bind to a temporary of type}} } namespace std { class type_info; } struct P { virtual ~P(); }; void unevaluated_operand(P &p, int i) { int i2 = sizeof([] ()->int { return 0; }()); // expected-error{{lambda expression in an unevaluated operand}} const std::type_info &ti1 = typeid([&]() -> P& { return p; }()); const std::type_info &ti2 = typeid([&]() -> int { return i; }()); // expected-error{{lambda expression in an unevaluated operand}} } template<typename T> struct Boom { Boom(const Boom&) { T* x = 1; // expected-error{{cannot initialize a variable of type 'int *' with an rvalue of type 'int'}} \ // expected-error{{cannot initialize a variable of type 'double *' with an rvalue of type 'int'}} } void tickle() const; }; void odr_used(P &p, Boom<int> boom_int, Boom<float> boom_float, Boom<double> boom_double) { const std::type_info &ti1 = typeid([=,&p]() -> P& { boom_int.tickle(); return p; }()); // expected-note{{in instantiation of member function 'Boom<int>::Boom' requested here}} // This does not cause the instantiation of the Boom copy constructor, // because the copy-initialization of the capture of boom_float occurs in an // unevaluated operand. const std::type_info &ti2 = typeid([=]() -> int { boom_float.tickle(); return 0; }()); // expected-error{{lambda expression in an unevaluated operand}} auto foo = [=]() -> int { boom_double.tickle(); return 0; }; // expected-note{{in instantiation of member function 'Boom<double>::Boom' requested here}} } |