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45 lines
1.1 KiB
C++
45 lines
1.1 KiB
C++
// Copyright 2018 Hans Dembinski
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//
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt
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// or copy at http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_HISTOGRAM_TEST_UTILITY_META_HPP
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#define BOOST_HISTOGRAM_TEST_UTILITY_META_HPP
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#include <array>
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#include <boost/core/is_same.hpp>
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#include <boost/core/lightweight_test_trait.hpp>
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#include <boost/histogram/detail/meta.hpp>
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#include <boost/mp11/tuple.hpp>
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#include <boost/mp11/utility.hpp>
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#include <ostream>
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#include <vector>
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namespace std {
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// never add to std, we only do it here to get ADL working :(
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template <typename T>
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ostream& operator<<(ostream& os, const vector<T>& v) {
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os << "[ ";
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for (const auto& x : v) os << x << " ";
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os << "]";
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return os;
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}
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template <class... Ts>
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ostream& operator<<(ostream& os, const std::tuple<Ts...>& t) {
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os << "[ ";
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::boost::mp11::tuple_for_each(t, [&os](const auto& x) { os << x << " "; });
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os << "]";
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return os;
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}
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template <class T, class U>
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ostream& operator<<(ostream& os, const std::pair<T, U>& t) {
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os << "[ " << t.first << " " << t.second << " ]";
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return os;
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}
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} // namespace std
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#endif
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