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39 lines
1.4 KiB
C++
39 lines
1.4 KiB
C++
/*=============================================================================
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Copyright (c) 2011-2015 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_CSTRING_MEMMOVE_HPP
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#define SPROUT_CSTRING_MEMMOVE_HPP
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#include <type_traits>
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#include <sprout/config.hpp>
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#include <sprout/workaround/std/cstddef.hpp>
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#include <sprout/type_traits/enabler_if.hpp>
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#include <sprout/algorithm/cxx14/copy_backward.hpp>
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namespace sprout {
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namespace detail {
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template<typename PtrIterator, typename ConstPtrIterator>
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inline SPROUT_CXX14_CONSTEXPR PtrIterator
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memmove(PtrIterator s1, ConstPtrIterator s2, std::size_t n) {
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sprout::copy_backward(s2, s2 + n, s1);
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return s1;
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}
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} // namespace detail
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// 7.21.2.2 The memmove function
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//
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template<
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typename T, typename CT,
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typename sprout::enabler_if<std::is_convertible<T, void*>::value && std::is_convertible<CT, void const*>::value>::type = sprout::enabler
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>
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inline SPROUT_CXX14_CONSTEXPR void*
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memmove(T s1, CT s2, std::size_t n) {
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return sprout::detail::memmove(static_cast<unsigned char*>(s1), static_cast<unsigned char const*>(s2), n);
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}
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} // namespace sprout
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#endif // #ifndef SPROUT_CSTRING_MEMMOVE_HPP
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