mirror of
https://github.com/bolero-MURAKAMI/Sprout
synced 2024-12-03 21:15:42 +00:00
43 lines
1.5 KiB
C++
43 lines
1.5 KiB
C++
/*=============================================================================
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Copyright (c) 2011-2016 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_CONTAINER_EMPTY_HPP
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#define SPROUT_CONTAINER_EMPTY_HPP
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#include <sprout/config.hpp>
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#include <sprout/workaround/std/cstddef.hpp>
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#include <sprout/container/traits_fwd.hpp>
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#include <sprout/container/container_traits.hpp>
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namespace sprout {
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//
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// empty
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//
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// effect:
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// sprout::container_range_traits<Container>::range_empty(cont)
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// [default]
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// ADL callable range_empty(cont) -> range_empty(cont)
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// [default]
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// Container is T[N] -> false
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// otherwise, callable cont.empty() -> cont.empty()
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// otherwise -> sprout::size(cont) == 0
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//
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template<typename Container>
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inline SPROUT_CONSTEXPR bool
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empty(Container const& cont) {
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return sprout::container_range_traits<Container const>::range_empty(cont);
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}
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template<typename T, std::size_t N>
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inline SPROUT_CONSTEXPR bool
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empty(T const (& arr)[N]) {
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return sprout::container_range_traits<T const[N]>::range_empty(arr);
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}
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} // namespace sprout
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#include <sprout/container/container_range_traits.hpp>
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#endif // #ifndef SPROUT_CONTAINER_EMPTY_HPP
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