mirror of
https://github.com/boostorg/histogram.git
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4a2e3db0e0
* renaming naked to remove_cvref_t * more static_asserts to check implicit conditions * use new BOOST_TEST_TRAIT_SAME * reorganize and add operator tests, fixes for array and map adaptors * improved map adaptor * storage does not have to support scaling operator anymore * doc improvements
48 lines
1.3 KiB
C++
48 lines
1.3 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 T,
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class = std::enable_if_t<boost::histogram::detail::has_fixed_size<T>::value>>
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ostream& operator<<(ostream& os, const T& 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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} // namespace std
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#ifndef BOOST_TEST_TRAIT_SAME
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// temporary macro implementation so that BOOST_TEST_TRAIT_SAME already works on travis
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// and appveyor with old boost-1.69.0
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#define BOOST_TEST_TRAIT_SAME(...) \
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BOOST_TEST_TRAIT_TRUE((::boost::core::is_same<__VA_ARGS__>))
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#endif
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#endif
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