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view gcc/testsuite/g++.dg/cpp2a/is-constant-evaluated8.C @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
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date | Thu, 13 Feb 2020 11:34:05 +0900 |
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// { dg-do compile { target c++11 } } // { dg-options "" } namespace std { constexpr inline bool is_constant_evaluated () noexcept { return __builtin_is_constant_evaluated (); } } struct A { explicit (!__builtin_is_constant_evaluated ()) A (int); }; // { dg-warning "'explicit\\(bool\\)' only available with" "" { target c++17_down } } struct B { explicit (!std::is_constant_evaluated ()) B (int); }; // { dg-warning "'explicit\\(bool\\)' only available with" "" { target c++17_down } } struct C { explicit (__builtin_is_constant_evaluated ()) C (int); }; // { dg-warning "'explicit\\(bool\\)' only available with" "" { target c++17_down } } struct D { explicit (std::is_constant_evaluated ()) D (int); }; // { dg-warning "'explicit\\(bool\\)' only available with" "" { target c++17_down } } A a = 1; B b = 2; C c = 3; // { dg-error "conversion from 'int' to non-scalar type 'C' requested" } D d = 4; // { dg-error "conversion from 'int' to non-scalar type 'D' requested" }