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_FILL_H
10 #define _LIBCPP___ALGORITHM_FILL_H
11 
12 #include <__config>
13 #include <__algorithm/fill_n.h>
14 #include <__iterator/iterator_traits.h>
15 #include <type_traits>
16 
17 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
18 #pragma GCC system_header
19 #endif
20 
21 _LIBCPP_PUSH_MACROS
22 #include <__undef_macros>
23 
24 _LIBCPP_BEGIN_NAMESPACE_STD
25 
26 template <class _ForwardIterator, class _Tp>
27 inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
28 void
29 __fill(_ForwardIterator __first, _ForwardIterator __last, const _Tp& __value_, forward_iterator_tag)
30 {
31     for (; __first != __last; ++__first)
32         *__first = __value_;
33 }
34 
35 template <class _RandomAccessIterator, class _Tp>
36 inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
37 void
38 __fill(_RandomAccessIterator __first, _RandomAccessIterator __last, const _Tp& __value_, random_access_iterator_tag)
39 {
40     _VSTD::fill_n(__first, __last - __first, __value_);
41 }
42 
43 template <class _ForwardIterator, class _Tp>
44 inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17
45 void
46 fill(_ForwardIterator __first, _ForwardIterator __last, const _Tp& __value_)
47 {
48     _VSTD::__fill(__first, __last, __value_, typename iterator_traits<_ForwardIterator>::iterator_category());
49 }
50 
51 _LIBCPP_END_NAMESPACE_STD
52 
53 _LIBCPP_POP_MACROS
54 
55 #endif // _LIBCPP___ALGORITHM_FILL_H
56