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dec7d0f24c
The new min_category is similar to minimum_category but accepts variable number of iterator categories on input instead of just two, and also does not depend on Boost.MPL for lambda placeholders. The existing minimum_category trait has been reimplemented in terms of min_category and deprecated. We don't yet emit deprecation warnings as there is still code that uses the old trait which we first need to update. Eventually, minimum_category will emit warnings and will be removed.
34 lines
2.2 KiB
C++
34 lines
2.2 KiB
C++
// Copyright Andrey Semashev 2025.
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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 or copy at
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// https://www.boost.org/LICENSE_1_0.txt)
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#include <boost/iterator/min_category.hpp>
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#include <boost/core/lightweight_test_trait.hpp>
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#include <iterator>
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#include <type_traits>
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using std::is_same;
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using boost::iterators::min_category;
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using boost::iterators::min_category_t;
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int main(int, char*[])
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{
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BOOST_TEST_TRAIT_TRUE((is_same<min_category<std::forward_iterator_tag>::type, std::forward_iterator_tag>));
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BOOST_TEST_TRAIT_TRUE((is_same<min_category<std::forward_iterator_tag, std::random_access_iterator_tag>::type, std::forward_iterator_tag>));
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BOOST_TEST_TRAIT_TRUE((is_same<min_category<std::random_access_iterator_tag, std::forward_iterator_tag>::type, std::forward_iterator_tag>));
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BOOST_TEST_TRAIT_TRUE((is_same<min_category<std::random_access_iterator_tag, std::random_access_iterator_tag>::type, std::random_access_iterator_tag>));
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BOOST_TEST_TRAIT_TRUE((is_same<min_category<std::forward_iterator_tag, std::bidirectional_iterator_tag, std::random_access_iterator_tag>::type, std::forward_iterator_tag>));
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BOOST_TEST_TRAIT_TRUE((is_same<min_category<std::random_access_iterator_tag, std::bidirectional_iterator_tag, std::forward_iterator_tag>::type, std::forward_iterator_tag>));
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BOOST_TEST_TRAIT_TRUE((is_same<min_category_t<std::forward_iterator_tag>, std::forward_iterator_tag>));
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BOOST_TEST_TRAIT_TRUE((is_same<min_category_t<std::forward_iterator_tag, std::random_access_iterator_tag>, std::forward_iterator_tag>));
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BOOST_TEST_TRAIT_TRUE((is_same<min_category_t<std::random_access_iterator_tag, std::forward_iterator_tag>, std::forward_iterator_tag>));
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BOOST_TEST_TRAIT_TRUE((is_same<min_category_t<std::random_access_iterator_tag, std::random_access_iterator_tag>, std::random_access_iterator_tag>));
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BOOST_TEST_TRAIT_TRUE((is_same<min_category_t<std::forward_iterator_tag, std::bidirectional_iterator_tag, std::random_access_iterator_tag>, std::forward_iterator_tag>));
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BOOST_TEST_TRAIT_TRUE((is_same<min_category_t<std::random_access_iterator_tag, std::bidirectional_iterator_tag, std::forward_iterator_tag>, std::forward_iterator_tag>));
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return boost::report_errors();
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}
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