| // -*- 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___ITERATOR_OSTREAMBUF_ITERATOR_H |
| #define _LIBCPP___ITERATOR_OSTREAMBUF_ITERATOR_H |
| |
| #include <__config> |
| #include <__iterator/iterator.h> |
| #include <__iterator/iterator_traits.h> |
| #include <iosfwd> // for forward declaration of basic_streambuf |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| #pragma GCC system_header |
| #endif |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| _LIBCPP_SUPPRESS_DEPRECATED_PUSH |
| template <class _CharT, class _Traits> |
| class _LIBCPP_TEMPLATE_VIS ostreambuf_iterator |
| #if _LIBCPP_STD_VER <= 14 || !defined(_LIBCPP_ABI_NO_ITERATOR_BASES) |
| : public iterator<output_iterator_tag, void, void, void, void> |
| #endif |
| { |
| _LIBCPP_SUPPRESS_DEPRECATED_POP |
| public: |
| typedef output_iterator_tag iterator_category; |
| typedef void value_type; |
| #if _LIBCPP_STD_VER > 17 |
| typedef ptrdiff_t difference_type; |
| #else |
| typedef void difference_type; |
| #endif |
| typedef void pointer; |
| typedef void reference; |
| typedef _CharT char_type; |
| typedef _Traits traits_type; |
| typedef basic_streambuf<_CharT, _Traits> streambuf_type; |
| typedef basic_ostream<_CharT, _Traits> ostream_type; |
| |
| private: |
| streambuf_type* __sbuf_; |
| public: |
| _LIBCPP_INLINE_VISIBILITY ostreambuf_iterator(ostream_type& __s) _NOEXCEPT |
| : __sbuf_(__s.rdbuf()) {} |
| _LIBCPP_INLINE_VISIBILITY ostreambuf_iterator(streambuf_type* __s) _NOEXCEPT |
| : __sbuf_(__s) {} |
| _LIBCPP_INLINE_VISIBILITY ostreambuf_iterator& operator=(_CharT __c) |
| { |
| if (__sbuf_ && traits_type::eq_int_type(__sbuf_->sputc(__c), traits_type::eof())) |
| __sbuf_ = nullptr; |
| return *this; |
| } |
| _LIBCPP_INLINE_VISIBILITY ostreambuf_iterator& operator*() {return *this;} |
| _LIBCPP_INLINE_VISIBILITY ostreambuf_iterator& operator++() {return *this;} |
| _LIBCPP_INLINE_VISIBILITY ostreambuf_iterator& operator++(int) {return *this;} |
| _LIBCPP_INLINE_VISIBILITY bool failed() const _NOEXCEPT {return __sbuf_ == nullptr;} |
| |
| template <class _Ch, class _Tr> |
| friend |
| _LIBCPP_HIDDEN |
| ostreambuf_iterator<_Ch, _Tr> |
| __pad_and_output(ostreambuf_iterator<_Ch, _Tr> __s, |
| const _Ch* __ob, const _Ch* __op, const _Ch* __oe, |
| ios_base& __iob, _Ch __fl); |
| }; |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| #endif // _LIBCPP___ITERATOR_OSTREAMBUF_ITERATOR_H |