Mercurial > hg > CbC > CbC_llvm
view libcxx/include/experimental/iterator @ 266:00f31e85ec16 default tip
Added tag current for changeset 31d058e83c98
author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
---|---|
date | Sat, 14 Oct 2023 10:13:55 +0900 |
parents | 1f2b6ac9f198 |
children |
line wrap: on
line source
// -*- C++ -*- //===----------------------------------------------------------------------===// // // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// #ifndef _LIBCPP_EXPERIMENTAL_ITERATOR #define _LIBCPP_EXPERIMENTAL_ITERATOR /* namespace std { namespace experimental { inline namespace fundamentals_v2 { template <class DelimT, class charT = char, class traits = char_traits<charT>> class ostream_joiner { public: typedef charT char_type; typedef traits traits_type; typedef basic_ostream<charT, traits> ostream_type; typedef output_iterator_tag iterator_category; typedef void value_type; typedef void difference_type; typedef void pointer; typedef void reference; ostream_joiner(ostream_type& s, const DelimT& delimiter); ostream_joiner(ostream_type& s, DelimT&& delimiter); template<typename T> ostream_joiner& operator=(const T& value); ostream_joiner& operator*() noexcept; ostream_joiner& operator++() noexcept; ostream_joiner& operator++(int) noexcept; private: ostream_type* out_stream; // exposition only DelimT delim; // exposition only bool first_element; // exposition only }; template <class charT, class traits, class DelimT> ostream_joiner<decay_t<DelimT>, charT, traits> make_ostream_joiner(basic_ostream<charT, traits>& os, DelimT&& delimiter); } // inline namespace fundamentals_v2 } // namespace experimental } // namespace std */ #include <__assert> // all public C++ headers provide the assertion handler #include <__memory/addressof.h> #include <__type_traits/decay.h> #include <__utility/forward.h> #include <__utility/move.h> #include <experimental/__config> #include <iosfwd> // char_traits #include <iterator> #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) # pragma GCC system_header #endif #if _LIBCPP_STD_VER >= 14 _LIBCPP_BEGIN_NAMESPACE_LFTS template <class _Delim, class _CharT = char, class _Traits = char_traits<_CharT>> class ostream_joiner { public: typedef _CharT char_type; typedef _Traits traits_type; typedef basic_ostream<char_type,traits_type> ostream_type; typedef output_iterator_tag iterator_category; typedef void value_type; typedef void difference_type; typedef void pointer; typedef void reference; _LIBCPP_HIDE_FROM_ABI ostream_joiner(ostream_type& __os, _Delim&& __d) : __output_iter_(_VSTD::addressof(__os)), __delim_(_VSTD::move(__d)), __first_(true) {} _LIBCPP_HIDE_FROM_ABI ostream_joiner(ostream_type& __os, const _Delim& __d) : __output_iter_(_VSTD::addressof(__os)), __delim_(__d), __first_(true) {} template<typename _Tp> _LIBCPP_HIDE_FROM_ABI ostream_joiner& operator=(const _Tp& __v) { if (!__first_) *__output_iter_ << __delim_; __first_ = false; *__output_iter_ << __v; return *this; } _LIBCPP_HIDE_FROM_ABI ostream_joiner& operator*() _NOEXCEPT { return *this; } _LIBCPP_HIDE_FROM_ABI ostream_joiner& operator++() _NOEXCEPT { return *this; } _LIBCPP_HIDE_FROM_ABI ostream_joiner& operator++(int) _NOEXCEPT { return *this; } private: ostream_type* __output_iter_; _Delim __delim_; bool __first_; }; template <class _CharT, class _Traits, class _Delim> _LIBCPP_HIDE_FROM_ABI ostream_joiner<__decay_t<_Delim>, _CharT, _Traits> make_ostream_joiner(basic_ostream<_CharT, _Traits>& __os, _Delim && __d) { return ostream_joiner<__decay_t<_Delim>, _CharT, _Traits>(__os, _VSTD::forward<_Delim>(__d)); } _LIBCPP_END_NAMESPACE_LFTS #endif // _LIBCPP_STD_VER >= 14 #if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20 # include <type_traits> #endif #endif // _LIBCPP_EXPERIMENTAL_ITERATOR