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 <__iterator/iterator.h>
15 #include <__iterator/iterator_traits.h>
16 #include <__memory/addressof.h>
17 #include <iosfwd> // for forward declarations of char_traits and basic_ostream
18 
19 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
20 #pragma GCC system_header
21 #endif
22 
23 _LIBCPP_PUSH_MACROS
24 #include <__undef_macros>
25 
26 _LIBCPP_BEGIN_NAMESPACE_STD
27 
28 _LIBCPP_SUPPRESS_DEPRECATED_PUSH
29 template <class _Tp, class _CharT = char, class _Traits = char_traits<_CharT> >
30 class _LIBCPP_TEMPLATE_VIS ostream_iterator
31 #if _LIBCPP_STD_VER <= 14 || !defined(_LIBCPP_ABI_NO_ITERATOR_BASES)
32     : public iterator<output_iterator_tag, void, void, void, void>
33 #endif
34 {
35 _LIBCPP_SUPPRESS_DEPRECATED_POP
36 public:
37     typedef output_iterator_tag             iterator_category;
38     typedef void                            value_type;
39 #if _LIBCPP_STD_VER > 17
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 
50 private:
51     ostream_type* __out_stream_;
52     const char_type* __delim_;
53 public:
54     _LIBCPP_INLINE_VISIBILITY ostream_iterator(ostream_type& __s) _NOEXCEPT
55         : __out_stream_(_VSTD::addressof(__s)), __delim_(nullptr) {}
56     _LIBCPP_INLINE_VISIBILITY ostream_iterator(ostream_type& __s, const _CharT* __delimiter) _NOEXCEPT
57         : __out_stream_(_VSTD::addressof(__s)), __delim_(__delimiter) {}
58     _LIBCPP_INLINE_VISIBILITY ostream_iterator& operator=(const _Tp& __value_)
59         {
60             *__out_stream_ << __value_;
61             if (__delim_)
62                 *__out_stream_ << __delim_;
63             return *this;
64         }
65 
66     _LIBCPP_INLINE_VISIBILITY ostream_iterator& operator*()     {return *this;}
67     _LIBCPP_INLINE_VISIBILITY ostream_iterator& operator++()    {return *this;}
68     _LIBCPP_INLINE_VISIBILITY ostream_iterator& operator++(int) {return *this;}
69 };
70 
71 _LIBCPP_END_NAMESPACE_STD
72 
73 _LIBCPP_POP_MACROS
74 
75 #endif // _LIBCPP___ITERATOR_OSTREAM_ITERATOR_H
76