1// -*- C++ -*-
2//===----------------------------------------------------------------------===//
3//
4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
5// See https://llvm.org/LICENSE.txt for license information.
6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef _LIBCPP___ITERATOR_OSTREAM_ITERATOR_H
11#define _LIBCPP___ITERATOR_OSTREAM_ITERATOR_H
12
13#include <__config>
14#include <__fwd/ostream.h>
15#include <__fwd/string.h>
16#include <__iterator/iterator.h>
17#include <__iterator/iterator_traits.h>
18#include <__memory/addressof.h>
19#include <cstddef>
20
21#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
22#  pragma GCC system_header
23#endif
24
25_LIBCPP_BEGIN_NAMESPACE_STD
26
27_LIBCPP_SUPPRESS_DEPRECATED_PUSH
28template <class _Tp, class _CharT = char, class _Traits = char_traits<_CharT> >
29class _LIBCPP_TEMPLATE_VIS ostream_iterator
30#if _LIBCPP_STD_VER <= 14 || !defined(_LIBCPP_ABI_NO_ITERATOR_BASES)
31    : public iterator<output_iterator_tag, void, void, void, void>
32#endif
33{
34  _LIBCPP_SUPPRESS_DEPRECATED_POP
35
36public:
37  typedef output_iterator_tag iterator_category;
38  typedef void value_type;
39#if _LIBCPP_STD_VER >= 20
40  typedef ptrdiff_t difference_type;
41#else
42  typedef void difference_type;
43#endif
44  typedef void pointer;
45  typedef void reference;
46  typedef _CharT char_type;
47  typedef _Traits traits_type;
48  typedef basic_ostream<_CharT, _Traits> ostream_type;
49
50private:
51  ostream_type* __out_stream_;
52  const char_type* __delim_;
53
54public:
55  _LIBCPP_HIDE_FROM_ABI ostream_iterator(ostream_type& __s) _NOEXCEPT
56      : __out_stream_(std::addressof(__s)),
57        __delim_(nullptr) {}
58  _LIBCPP_HIDE_FROM_ABI ostream_iterator(ostream_type& __s, const _CharT* __delimiter) _NOEXCEPT
59      : __out_stream_(std::addressof(__s)),
60        __delim_(__delimiter) {}
61  _LIBCPP_HIDE_FROM_ABI ostream_iterator& operator=(const _Tp& __value) {
62    *__out_stream_ << __value;
63    if (__delim_)
64      *__out_stream_ << __delim_;
65    return *this;
66  }
67
68  _LIBCPP_HIDE_FROM_ABI ostream_iterator& operator*() { return *this; }
69  _LIBCPP_HIDE_FROM_ABI ostream_iterator& operator++() { return *this; }
70  _LIBCPP_HIDE_FROM_ABI ostream_iterator& operator++(int) { return *this; }
71};
72
73_LIBCPP_END_NAMESPACE_STD
74
75#endif // _LIBCPP___ITERATOR_OSTREAM_ITERATOR_H
76