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Diffstat (limited to 'src/boost/libs/local_function/test/addable.hpp')
-rw-r--r-- | src/boost/libs/local_function/test/addable.hpp | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/boost/libs/local_function/test/addable.hpp b/src/boost/libs/local_function/test/addable.hpp new file mode 100644 index 000000000..3b13ab288 --- /dev/null +++ b/src/boost/libs/local_function/test/addable.hpp @@ -0,0 +1,26 @@ + +// Copyright (C) 2009-2012 Lorenzo Caminiti +// Distributed under the Boost Software License, Version 1.0 +// (see accompanying file LICENSE_1_0.txt or a copy at +// http://www.boost.org/LICENSE_1_0.txt) +// Home at http://www.boost.org/libs/local_function + +#ifndef ADDABLE_HPP_ +#define ADDABLE_HPP_ + +#include <boost/concept_check.hpp> + +template<typename T> +struct Addable { // User-defined concept. + BOOST_CONCEPT_USAGE(Addable) { + return_type(x + y); // Check addition `T operator+(T x, T y)`. + } + +private: + void return_type(T) {} // Implementation (required for some linkers). + static T const& x; + static T const& y; +}; + +#endif // #include guard + |