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47 lines
927 B
C++
47 lines
927 B
C++
// Copyright 2022 Peter Dimov.
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// Distributed under the Boost Software License, Version 1.0.
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// https://www.boost.org/LICENSE_1_0.txt
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#include <boost/type_traits/integral_constant.hpp>
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struct X1
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{
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char const* begin() const;
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char const* end() const;
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};
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struct X2
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{
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char const* begin() const;
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char const* end() const;
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};
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namespace boost
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{
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namespace container_hash
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{
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template<class T> struct is_range;
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template<> struct is_range<X2>: boost::false_type {};
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} // namespace container_hash
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} // namespace boost
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#include <boost/container_hash/is_range.hpp>
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#include <boost/core/lightweight_test_trait.hpp>
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int main()
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{
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using boost::container_hash::is_range;
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#if !defined(BOOST_NO_CXX11_DECLTYPE) && !defined(BOOST_NO_SFINAE_EXPR) && !BOOST_WORKAROUND(BOOST_GCC, < 40700)
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BOOST_TEST_TRAIT_TRUE((is_range<X1>));
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#endif
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BOOST_TEST_TRAIT_FALSE((is_range<X2>));
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return boost::report_errors();
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}
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