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_GENERATE_N_H
10 #define _LIBCPP___ALGORITHM_GENERATE_N_H
11 
12 #include <__config>
13 #include <__utility/convert_to_integral.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_BEGIN_NAMESPACE_STD
21 
22 template <class _OutputIterator, class _Size, class _Generator>
23 inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20
24 _OutputIterator
25 generate_n(_OutputIterator __first, _Size __orig_n, _Generator __gen)
26 {
27     typedef decltype(_VSTD::__convert_to_integral(__orig_n)) _IntegralSize;
28     _IntegralSize __n = __orig_n;
29     for (; __n > 0; ++__first, (void) --__n)
30         *__first = __gen();
31     return __first;
32 }
33 
34 _LIBCPP_END_NAMESPACE_STD
35 
36 #endif // _LIBCPP___ALGORITHM_GENERATE_N_H
37