1 // RUN: %clang_cc1 -std=c++11 -verify -fsyntax-only %s 2 3 struct S { SS4 constexpr S(bool b) : b(b) {} operator boolS5 constexpr explicit operator bool() const { return b; } 6 bool b; 7 }; 8 struct T { operator intT9 constexpr operator int() const { return 1; } 10 }; 11 struct U { operator intU12 constexpr operator int() const { return 1; } // expected-note {{candidate}} operator longU13 constexpr operator long() const { return 0; } // expected-note {{candidate}} 14 }; 15 16 static_assert(S(true), ""); 17 static_assert(S(false), "not so fast"); // expected-error {{not so fast}} 18 static_assert(T(), ""); 19 static_assert(U(), ""); // expected-error {{ambiguous}} 20 21 static_assert(false, L"\x14hi" "!" R"x(")x"); // expected-error {{static_assert failed L"\024hi!\""}} 22