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// Copyright 2018-2019 Hans Dembinski
//
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt
// or copy at http://www.boost.org/LICENSE_1_0.txt)
#ifndef BOOST_HISTOGRAM_TEST_STD_OSTREAM_HPP
#define BOOST_HISTOGRAM_TEST_STD_OSTREAM_HPP
#include <boost/mp11/tuple.hpp>
#include <ostream>
#include <utility>
#include <vector>
namespace std {
// never add to std, we only do it here to get ADL working :(
template <class T>
ostream& operator<<(ostream& os, const vector<T>& v) {
os << "[ ";
for (const auto& x : v) os << x << " ";
os << "]";
return os;
}
template <class... Ts>
ostream& operator<<(ostream& os, const std::tuple<Ts...>& t) {
os << "[ ";
::boost::mp11::tuple_for_each(t, [&os](const auto& x) { os << x << " "; });
os << "]";
return os;
}
template <class T, class U>
ostream& operator<<(ostream& os, const std::pair<T, U>& t) {
os << "[ " << t.first << " " << t.second << " ]";
return os;
}
} // namespace std
#endif
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