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Name	Size	Permission
algorithmfwd.h	23.97 KB	-rw-r--r--
align.h	3.62 KB	-rw-r--r--
alloc_traits.h	27.03 KB	-rw-r--r--
allocated_ptr.h	3.25 KB	-rw-r--r--
allocator.h	9.55 KB	-rw-r--r--
atomic_base.h	56.73 KB	-rw-r--r--
atomic_futex.h	12.08 KB	-rw-r--r--
atomic_lockfree_defines.h	2.3 KB	-rw-r--r--
atomic_timed_wait.h	13.18 KB	-rw-r--r--
atomic_wait.h	12.2 KB	-rw-r--r--
basic_ios.h	15.7 KB	-rw-r--r--
basic_ios.tcc	5.96 KB	-rw-r--r--
basic_string.h	149.19 KB	-rw-r--r--
basic_string.tcc	33.76 KB	-rw-r--r--
boost_concept_check.h	29.13 KB	-rw-r--r--
c++0x_warning.h	1.44 KB	-rw-r--r--
char_traits.h	28.54 KB	-rw-r--r--
charconv.h	3.35 KB	-rw-r--r--
chrono.h	41.53 KB	-rw-r--r--
codecvt.h	24.9 KB	-rw-r--r--
concept_check.h	3.34 KB	-rw-r--r--
cow_string.h	129.11 KB	-rw-r--r--
cpp_type_traits.h	13.72 KB	-rw-r--r--
cxxabi_forced.h	1.77 KB	-rw-r--r--
cxxabi_init_exception.h	2.17 KB	-rw-r--r--
deque.tcc	41.38 KB	-rw-r--r--
enable_special_members.h	12.16 KB	-rw-r--r--
erase_if.h	2.09 KB	-rw-r--r--
exception.h	2.45 KB	-rw-r--r--
exception_defines.h	1.61 KB	-rw-r--r--
exception_ptr.h	7.73 KB	-rw-r--r--
forward_list.h	49.87 KB	-rw-r--r--
forward_list.tcc	13.71 KB	-rw-r--r--
fs_dir.h	16.23 KB	-rw-r--r--
fs_fwd.h	10.66 KB	-rw-r--r--
fs_ops.h	10.49 KB	-rw-r--r--
fs_path.h	40.57 KB	-rw-r--r--
fstream.tcc	32.88 KB	-rw-r--r--
functexcept.h	3.43 KB	-rw-r--r--
functional_hash.h	8.51 KB	-rw-r--r--
gslice.h	5.39 KB	-rw-r--r--
gslice_array.h	7.67 KB	-rw-r--r--
hash_bytes.h	2.1 KB	-rw-r--r--
hashtable.h	87.83 KB	-rw-r--r--
hashtable_policy.h	63.21 KB	-rw-r--r--
indirect_array.h	7.68 KB	-rw-r--r--
invoke.h	5.92 KB	-rw-r--r--
ios_base.h	31.43 KB	-rw-r--r--
istream.tcc	31.38 KB	-rw-r--r--
iterator_concepts.h	32.61 KB	-rw-r--r--
list.tcc	17.62 KB	-rw-r--r--
locale_classes.h	24.46 KB	-rw-r--r--
locale_classes.tcc	8.18 KB	-rw-r--r--
locale_conv.h	18.74 KB	-rw-r--r--
locale_facets.h	91.72 KB	-rw-r--r--
locale_facets.tcc	39.51 KB	-rw-r--r--
locale_facets_nonio.h	69.1 KB	-rw-r--r--
locale_facets_nonio.tcc	53.76 KB	-rw-r--r--
localefwd.h	5.8 KB	-rw-r--r--
mask_array.h	7.5 KB	-rw-r--r--
max_size_type.h	21.96 KB	-rw-r--r--
memoryfwd.h	2.45 KB	-rw-r--r--
mofunc_impl.h	7.52 KB	-rw-r--r--
move.h	6.63 KB	-rw-r--r--
move_only_function.h	5.73 KB	-rw-r--r--
nested_exception.h	4.77 KB	-rw-r--r--
new_allocator.h	6.47 KB	-rw-r--r--
node_handle.h	10.67 KB	-rw-r--r--
ostream.tcc	11.69 KB	-rw-r--r--
ostream_insert.h	3.94 KB	-rw-r--r--
parse_numbers.h	7.8 KB	-rw-r--r--
postypes.h	7.33 KB	-rw-r--r--
predefined_ops.h	9.94 KB	-rw-r--r--
ptr_traits.h	8.88 KB	-rw-r--r--
quoted_string.h	4.93 KB	-rw-r--r--
random.h	174.24 KB	-rw-r--r--
random.tcc	103.38 KB	-rw-r--r--
range_access.h	10.97 KB	-rw-r--r--
ranges_algo.h	114.1 KB	-rw-r--r--
ranges_algobase.h	18.4 KB	-rw-r--r--
ranges_base.h	25.61 KB	-rw-r--r--
ranges_cmp.h	5.83 KB	-rw-r--r--
ranges_uninitialized.h	17.71 KB	-rw-r--r--
ranges_util.h	21.3 KB	-rw-r--r--
refwrap.h	13.21 KB	-rw-r--r--
regex.h	101.77 KB	-rw-r--r--
regex.tcc	16.13 KB	-rw-r--r--
regex_automaton.h	10.54 KB	-rw-r--r--
regex_automaton.tcc	7.58 KB	-rw-r--r--
regex_compiler.h	15.92 KB	-rw-r--r--
regex_compiler.tcc	18.38 KB	-rw-r--r--
regex_constants.h	14.51 KB	-rw-r--r--
regex_error.h	5.03 KB	-rw-r--r--
regex_executor.h	8.8 KB	-rw-r--r--
regex_executor.tcc	18.41 KB	-rw-r--r--
regex_scanner.h	6.88 KB	-rw-r--r--
regex_scanner.tcc	14.54 KB	-rw-r--r--
semaphore_base.h	7.7 KB	-rw-r--r--
shared_ptr.h	38.14 KB	-rw-r--r--
shared_ptr_atomic.h	20.7 KB	-rw-r--r--
shared_ptr_base.h	65.23 KB	-rw-r--r--
slice_array.h	9.35 KB	-rw-r--r--
specfun.h	46.13 KB	-rw-r--r--
sstream.tcc	9.91 KB	-rw-r--r--
std_abs.h	3.37 KB	-rw-r--r--
std_function.h	22.34 KB	-rw-r--r--
std_mutex.h	6.27 KB	-rw-r--r--
std_thread.h	8.24 KB	-rw-r--r--
stl_algo.h	210.67 KB	-rw-r--r--
stl_algobase.h	75.01 KB	-rw-r--r--
stl_bvector.h	40.27 KB	-rw-r--r--
stl_construct.h	8.46 KB	-rw-r--r--
stl_deque.h	76.34 KB	-rw-r--r--
stl_function.h	43.97 KB	-rw-r--r--
stl_heap.h	20.31 KB	-rw-r--r--
stl_iterator.h	79.65 KB	-rw-r--r--
stl_iterator_base_funcs.h	8.57 KB	-rw-r--r--
stl_iterator_base_types.h	9.46 KB	-rw-r--r--
stl_list.h	70.68 KB	-rw-r--r--
stl_map.h	54.8 KB	-rw-r--r--
stl_multimap.h	42.67 KB	-rw-r--r--
stl_multiset.h	36.84 KB	-rw-r--r--
stl_numeric.h	14.26 KB	-rw-r--r--
stl_pair.h	29.41 KB	-rw-r--r--
stl_queue.h	28.06 KB	-rw-r--r--
stl_raw_storage_iter.h	3.91 KB	-rw-r--r--
stl_relops.h	4.47 KB	-rw-r--r--
stl_set.h	37.09 KB	-rw-r--r--
stl_stack.h	13.71 KB	-rw-r--r--
stl_tempbuf.h	8.48 KB	-rw-r--r--
stl_tree.h	72.04 KB	-rw-r--r--
stl_uninitialized.h	35.32 KB	-rw-r--r--
stl_vector.h	68.73 KB	-rw-r--r--
stream_iterator.h	8.09 KB	-rw-r--r--
streambuf.tcc	4.58 KB	-rw-r--r--
streambuf_iterator.h	15.53 KB	-rw-r--r--
string_view.tcc	7 KB	-rw-r--r--
stringfwd.h	2.56 KB	-rw-r--r--
this_thread_sleep.h	3.21 KB	-rw-r--r--
uniform_int_dist.h	12.77 KB	-rw-r--r--
unique_lock.h	6.01 KB	-rw-r--r--
unique_ptr.h	35.54 KB	-rw-r--r--
unordered_map.h	74.87 KB	-rw-r--r--
unordered_set.h	61.46 KB	-rw-r--r--
uses_allocator.h	6.74 KB	-rw-r--r--
uses_allocator_args.h	6.96 KB	-rw-r--r--
utility.h	8.12 KB	-rw-r--r--
valarray_after.h	22.74 KB	-rw-r--r--
valarray_array.h	20.8 KB	-rw-r--r--
valarray_array.tcc	7.08 KB	-rw-r--r--
valarray_before.h	18.69 KB	-rw-r--r--
vector.tcc	30.82 KB	-rw-r--r--

Code Editor : stream_iterator.h

// Stream iterators

// Copyright (C) 2001-2022 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.

// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.

// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
// <http://www.gnu.org/licenses/>.

/** @file bits/stream_iterator.h
 *  This is an internal header file, included by other library headers.
 *  Do not attempt to use it directly. @headername{iterator}
 */

#ifndef _STREAM_ITERATOR_H
#define _STREAM_ITERATOR_H 1

#pragma GCC system_header

#include <debug/debug.h>

namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION

/**
   * @addtogroup iterators
   * @{
   */

// Ignore warnings about std::iterator.
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"

/// Provides input iterator semantics for streams.
  template<typename _Tp, typename _CharT = char,
           typename _Traits = char_traits<_CharT>, typename _Dist = ptrdiff_t>
    class istream_iterator
    : public iterator<input_iterator_tag, _Tp, _Dist, const _Tp*, const _Tp&>
    {
    public:
      typedef _CharT                         char_type;
      typedef _Traits                        traits_type;
      typedef basic_istream<_CharT, _Traits> istream_type;

private:
      istream_type*	_M_stream;
      _Tp		_M_value;
      // This bool becomes false at end-of-stream. It should be sufficient to
      // check _M_stream != nullptr instead, but historically we did not set
      // _M_stream to null when reaching the end, so we need to keep this flag.
      bool		_M_ok;

public:
      ///  Construct end of input stream iterator.
      _GLIBCXX_CONSTEXPR istream_iterator()
      _GLIBCXX_NOEXCEPT_IF(is_nothrow_default_constructible<_Tp>::value)
      : _M_stream(0), _M_value(), _M_ok(false) {}

///  Construct start of input stream iterator.
      istream_iterator(istream_type& __s)
      : _M_stream(std::__addressof(__s)), _M_ok(true)
      { _M_read(); }

istream_iterator(const istream_iterator& __obj)
      _GLIBCXX_NOEXCEPT_IF(is_nothrow_copy_constructible<_Tp>::value)
      : _M_stream(__obj._M_stream), _M_value(__obj._M_value),
        _M_ok(__obj._M_ok)
      { }

#if __cplusplus > 201703L && __cpp_lib_concepts
      constexpr
      istream_iterator(default_sentinel_t)
      noexcept(is_nothrow_default_constructible_v<_Tp>)
      : istream_iterator() { }
#endif

#if __cplusplus >= 201103L
      istream_iterator& operator=(const istream_iterator&) = default;
      ~istream_iterator() = default;
#endif

_GLIBCXX_NODISCARD
      const _Tp&
      operator*() const _GLIBCXX_NOEXCEPT
      {
	__glibcxx_requires_cond(_M_ok,
				_M_message(__gnu_debug::__msg_deref_istream)
				._M_iterator(*this));
	return _M_value;
      }

_GLIBCXX_NODISCARD
      const _Tp*
      operator->() const _GLIBCXX_NOEXCEPT
      { return std::__addressof((operator*())); }

istream_iterator&
      operator++()
      {
	__glibcxx_requires_cond(_M_ok,
				_M_message(__gnu_debug::__msg_inc_istream)
				._M_iterator(*this));
	_M_read();
	return *this;
      }

istream_iterator
      operator++(int)
      {
	__glibcxx_requires_cond(_M_ok,
				_M_message(__gnu_debug::__msg_inc_istream)
				._M_iterator(*this));
	istream_iterator __tmp = *this;
	_M_read();
	return __tmp;
      }

private:
      bool
      _M_equal(const istream_iterator& __x) const _GLIBCXX_NOEXCEPT
      {
	// Ideally this would just return _M_stream == __x._M_stream,
	// but code compiled with old versions never sets _M_stream to null.
	return (_M_ok == __x._M_ok) && (!_M_ok || _M_stream == __x._M_stream);
      }

void
      _M_read()
      {
        if (_M_stream && !(*_M_stream >> _M_value))
          {
            _M_stream = 0;
            _M_ok = false;
          }
      }

/// Return true if the iterators refer to the same stream,
      /// or are both at end-of-stream.
      _GLIBCXX_NODISCARD
      friend bool
      operator==(const istream_iterator& __x, const istream_iterator& __y)
      _GLIBCXX_NOEXCEPT
      { return __x._M_equal(__y); }

#if __cpp_impl_three_way_comparison < 201907L
      /// Return true if the iterators refer to different streams,
      /// or if one is at end-of-stream and the other is not.
      _GLIBCXX_NODISCARD
      friend bool
      operator!=(const istream_iterator& __x, const istream_iterator& __y)
      _GLIBCXX_NOEXCEPT
      { return !__x._M_equal(__y); }
#endif

#if __cplusplus > 201703L && __cpp_lib_concepts
      [[nodiscard]]
      friend bool
      operator==(const istream_iterator& __i, default_sentinel_t) noexcept
      { return !__i._M_stream; }
#endif
    };

/**
   *  @brief  Provides output iterator semantics for streams.
   *
   *  This class provides an iterator to write to an ostream.  The type Tp is
   *  the only type written by this iterator and there must be an
   *  operator<<(Tp) defined.
   *
   *  @tparam  _Tp  The type to write to the ostream.
   *  @tparam  _CharT  The ostream char_type.
   *  @tparam  _Traits  The ostream char_traits.
  */
  template<typename _Tp, typename _CharT = char,
           typename _Traits = char_traits<_CharT> >
    class ostream_iterator
    : public iterator<output_iterator_tag, void, void, void, void>
    {
    public:
      ///@{
      /// Public typedef
#if __cplusplus > 201703L
      using difference_type = ptrdiff_t;
#endif
      typedef _CharT                         char_type;
      typedef _Traits                        traits_type;
      typedef basic_ostream<_CharT, _Traits> ostream_type;
      ///@}

private:
      ostream_type*	_M_stream;
      const _CharT*	_M_string;

public:
      /// Construct from an ostream.
      ostream_iterator(ostream_type& __s) _GLIBCXX_NOEXCEPT
      : _M_stream(std::__addressof(__s)), _M_string(0) {}

/**
       *  Construct from an ostream.
       *
       *  The delimiter string @a c is written to the stream after every Tp
       *  written to the stream.  The delimiter is not copied, and thus must
       *  not be destroyed while this iterator is in use.
       *
       *  @param  __s  Underlying ostream to write to.
       *  @param  __c  CharT delimiter string to insert.
      */
      ostream_iterator(ostream_type& __s, const _CharT* __c) _GLIBCXX_NOEXCEPT
      : _M_stream(std::__addressof(__s)), _M_string(__c)  { }

/// Copy constructor.
      ostream_iterator(const ostream_iterator& __obj) _GLIBCXX_NOEXCEPT
      : _M_stream(__obj._M_stream), _M_string(__obj._M_string)  { }

#if __cplusplus >= 201103L
      ostream_iterator& operator=(const ostream_iterator&) = default;
#endif

/// Writes @a value to underlying ostream using operator<<.  If
      /// constructed with delimiter string, writes delimiter to ostream.
      ostream_iterator&
      operator=(const _Tp& __value)
      {
	__glibcxx_requires_cond(_M_stream != 0,
				_M_message(__gnu_debug::__msg_output_ostream)
				._M_iterator(*this));
	*_M_stream << __value;
	if (_M_string)
          *_M_stream << _M_string;
	return *this;
      }

_GLIBCXX_NODISCARD
      ostream_iterator&
      operator*() _GLIBCXX_NOEXCEPT
      { return *this; }

ostream_iterator&
      operator++() _GLIBCXX_NOEXCEPT
      { return *this; }

ostream_iterator&
      operator++(int) _GLIBCXX_NOEXCEPT
      { return *this; }
    };
#pragma GCC diagnostic pop

/// @} group iterators

_GLIBCXX_END_NAMESPACE_VERSION
} // namespace

#endif

${this.title}

Code Editor : stream_iterator.h