| // -*- C++ -*- |
| //===----------------------------- iterator -------------------------------===// |
| // |
| // 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 |
| // |
| //===----------------------------------------------------------------------===// |
|
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| |
| |
|
|
| /* |
| 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 |
|
|
| */ |
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|
|
| _LIBCUDACXX_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; |
|
|
| ostream_joiner(ostream_type& __os, _Delim&& __d) |
| : __output_iter(_CUDA_VSTD::addressof(__os)), __delim(_CUDA_VSTD::move(__d)), __first(true) {} |
| |
| ostream_joiner(ostream_type& __os, const _Delim& __d) |
| : __output_iter(_CUDA_VSTD::addressof(__os)), __delim(__d), __first(true) {} |
| |
|
|
| template<typename _Tp> |
| ostream_joiner& operator=(const _Tp& __v) |
| { |
| if (!__first) |
| *__output_iter << __delim; |
| __first = false; |
| *__output_iter << __v; |
| return *this; |
| } |
|
|
| ostream_joiner& operator*() noexcept { return *this; } |
| ostream_joiner& operator++() noexcept { return *this; } |
| ostream_joiner& operator++(int) noexcept { return *this; } |
|
|
| private: |
| ostream_type* __output_iter; |
| _Delim __delim; |
| bool __first; |
| }; |
|
|
|
|
| template <class _CharT, class _Traits, class _Delim> |
| 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, _CUDA_VSTD::forward<_Delim>(__d)); } |
|
|
| _LIBCUDACXX_END_NAMESPACE_LFTS |
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|
