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32 lines
941 B
C++
32 lines
941 B
C++
#ifndef SPROUT_ALGORITHM_ONE_OF_EQUAL_HPP
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#define SPROUT_ALGORITHM_ONE_OF_EQUAL_HPP
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#include <sprout/config.hpp>
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#include <sprout/iterator/operation.hpp>
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#include <sprout/algorithm/none_of_equal.hpp>
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#include <sprout/algorithm/find.hpp>
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namespace sprout {
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namespace detail {
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template<typename InputIterator, typename T>
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inline SPROUT_CONSTEXPR bool
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one_of_equal_impl(InputIterator found, InputIterator last, T const& value) {
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return found != last
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&& sprout::none_of_equal(sprout::next(found), last, value)
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;
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}
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} // namespace detail
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//
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// one_of_equal
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//
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template<typename InputIterator, typename T>
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inline SPROUT_CONSTEXPR bool
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one_of_equal(InputIterator first, InputIterator last, T const& value) {
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return sprout::detail::one_of_equal_impl(
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sprout::find(first, last, value), last,
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value
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);
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}
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} // namespace sprout
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#endif // #ifndef SPROUT_ALGORITHM_ONE_OF_EQUAL_HPP
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