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 15 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 16 # pragma GCC system_header 17 #endif 18 19 _LIBCPP_BEGIN_NAMESPACE_STD 20 21 template <class _OutputIterator, class _Size, class _Generator> 22 inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _OutputIterator 23 generate_n(_OutputIterator __first, _Size __orig_n, _Generator __gen) { 24 typedef decltype(std::__convert_to_integral(__orig_n)) _IntegralSize; 25 _IntegralSize __n = __orig_n; 26 for (; __n > 0; ++__first, (void)--__n) 27 *__first = __gen(); 28 return __first; 29 } 30 31 _LIBCPP_END_NAMESPACE_STD 32 33 #endif // _LIBCPP___ALGORITHM_GENERATE_N_H 34