catch2/internal/catch_stream_end_stop.hpp

0001
0002 //              Copyright Catch2 Authors
0003 // Distributed under the Boost Software License, Version 1.0.
0004 //   (See accompanying file LICENSE.txt or copy at
0005 //        https://www.boost.org/LICENSE_1_0.txt)
0006
0007 // SPDX-License-Identifier: BSL-1.0
0008 #ifndef CATCH_STREAM_END_STOP_HPP_INCLUDED
0009 #define CATCH_STREAM_END_STOP_HPP_INCLUDED
0010
0011 #include <catch2/internal/catch_stringref.hpp>
0012
0013 namespace Catch {
0014
0015     // Use this in variadic streaming macros to allow
0016     //    << +StreamEndStop
0017     // as well as
0018     //    << stuff +StreamEndStop
0019     struct StreamEndStop {
0020         constexpr StringRef operator+() const { return StringRef(); }
0021
0022         template <typename T>
0023         constexpr friend T const& operator+( T const& value, StreamEndStop ) {
0024             return value;
0025         }
0026     };
0027
0028 } // namespace Catch
0029
0030 #endif // CATCH_STREAM_END_STOP_HPP_INCLUDED