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53 lines
1.9 KiB
C++
53 lines
1.9 KiB
C++
/*=============================================================================
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Copyright (c) 2011-2014 Bolero MURAKAMI
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https://github.com/bolero-MURAKAMI/Sprout
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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=============================================================================*/
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#ifndef SPROUT_ALGORITHM_CXX14_MAKE_HEAP_HPP
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#define SPROUT_ALGORITHM_CXX14_MAKE_HEAP_HPP
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#include <iterator>
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#include <type_traits>
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#include <sprout/config.hpp>
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#include <sprout/algorithm/cxx14/detail/heap_tool.hpp>
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#include HDR_FUNCTIONAL_SSCRISK_CEL_OR_SPROUT
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namespace sprout {
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namespace detail {
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template<typename Compare, typename RandomAccessIterator>
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inline SPROUT_CXX14_CONSTEXPR void
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make_heap(RandomAccessIterator first, RandomAccessIterator last, Compare comp) {
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typedef typename std::iterator_traits<RandomAccessIterator>::difference_type difference_type;
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difference_type len = last - first;
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if (len > 1) {
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last = first;
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++last;
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for (difference_type i = 1; i < len; ++i) {
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sprout::detail::push_heap_back<Compare>(first, ++last, comp, i);
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}
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}
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}
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} // namespace detail
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//
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// 25.4.6.3 make_heap
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//
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template<typename RandomAccessIterator, typename Compare>
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inline SPROUT_CXX14_CONSTEXPR void
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make_heap(RandomAccessIterator first, RandomAccessIterator last, Compare comp) {
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typedef typename std::add_lvalue_reference<Compare>::type compare_ref;
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sprout::detail::make_heap<compare_ref>(first, last, comp);
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}
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template<typename RandomAccessIterator>
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inline SPROUT_CXX14_CONSTEXPR void
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make_heap(RandomAccessIterator first, RandomAccessIterator last) {
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sprout::make_heap(
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first, last,
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NS_SSCRISK_CEL_OR_SPROUT::less<typename std::iterator_traits<RandomAccessIterator>::value_type>()
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);
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}
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} // namespace sprout
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#endif // #ifndef SPROUT_ALGORITHM_CXX14_MAKE_HEAP_HPP
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