1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #ifndef _LIBCPP___ALGORITHM_SWAP_RANGES_H
10 #define _LIBCPP___ALGORITHM_SWAP_RANGES_H
11 
12 #include <__config>
13 #include <__utility/swap.h>
14 #include <type_traits>
15 
16 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
17 #pragma GCC system_header
18 #endif
19 
20 _LIBCPP_PUSH_MACROS
21 #include <__undef_macros>
22 
23 _LIBCPP_BEGIN_NAMESPACE_STD
24 
25 template <class _ForwardIterator1, class _ForwardIterator2>
26 inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 _ForwardIterator2
27 swap_ranges(_ForwardIterator1 __first1, _ForwardIterator1 __last1, _ForwardIterator2 __first2) {
28   for (; __first1 != __last1; ++__first1, (void)++__first2)
29     swap(*__first1, *__first2);
30   return __first2;
31 }
32 
33 _LIBCPP_END_NAMESPACE_STD
34 
35 _LIBCPP_POP_MACROS
36 
37 #endif // _LIBCPP___ALGORITHM_SWAP_RANGES_H
38