// Copyright 2015-2019 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_DETAIL_MAKE_DEFAULT_HPP
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#define BOOST_HISTOGRAM_DETAIL_MAKE_DEFAULT_HPP
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namespace boost {
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namespace histogram {
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namespace detail {
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template <class T>
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T make_default_impl(const T& t, decltype(t.get_allocator(), 0)) {
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return T(t.get_allocator());
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}
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template <class T>
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T make_default_impl(const T&, float) {
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return T{};
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}
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template <class T>
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T make_default(const T& t) {
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return make_default_impl(t, 0);
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}
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} // namespace detail
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} // namespace histogram
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} // namespace boost
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#endif
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