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File streambuf.tcc

// Stream buffer classes -*- C++ -*-

// Copyright (C) 1997-2018 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/streambuf.tcc
 *  This is an internal header file, included by other library headers.
 *  Do not attempt to use it directly. @headername{streambuf}
 */

//
// ISO C++ 14882: 27.5  Stream buffers
//

#ifndef _STREAMBUF_TCC
#define _STREAMBUF_TCC 1

#pragma GCC system_header

namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION

template<typename _CharT, typename _Traits>
    streamsize
    basic_streambuf<_CharT, _Traits>::
    xsgetn(char_type* __s, streamsize __n)
    {
      streamsize __ret = 0;
      while (__ret < __n)
	{
	  const streamsize __buf_len = this->egptr() - this->gptr();
	  if (__buf_len)
	    {
	      const streamsize __remaining = __n - __ret;
	      const streamsize __len = std::min(__buf_len, __remaining);
	      traits_type::copy(__s, this->gptr(), __len);
	      __ret += __len;
	      __s += __len;
	      this->__safe_gbump(__len);
	    }

if (__ret < __n)
	    {
	      const int_type __c = this->uflow();
	      if (!traits_type::eq_int_type(__c, traits_type::eof()))
		{
		  traits_type::assign(*__s++, traits_type::to_char_type(__c));
		  ++__ret;
		}
	      else
		break;
	    }
	}
      return __ret;
    }

template<typename _CharT, typename _Traits>
    streamsize
    basic_streambuf<_CharT, _Traits>::
    xsputn(const char_type* __s, streamsize __n)
    {
      streamsize __ret = 0;
      while (__ret < __n)
	{
	  const streamsize __buf_len = this->epptr() - this->pptr();
	  if (__buf_len)
	    {
	      const streamsize __remaining = __n - __ret;
	      const streamsize __len = std::min(__buf_len, __remaining);
	      traits_type::copy(this->pptr(), __s, __len);
	      __ret += __len;
	      __s += __len;
	      this->__safe_pbump(__len);
	    }

if (__ret < __n)
	    {
	      int_type __c = this->overflow(traits_type::to_int_type(*__s));
	      if (!traits_type::eq_int_type(__c, traits_type::eof()))
		{
		  ++__ret;
		  ++__s;
		}
	      else
		break;
	    }
	}
      return __ret;
    }

// Conceivably, this could be used to implement buffer-to-buffer
  // copies, if this was ever desired in an un-ambiguous way by the
  // standard.
  template<typename _CharT, typename _Traits>
    streamsize
    __copy_streambufs_eof(basic_streambuf<_CharT, _Traits>* __sbin,
			  basic_streambuf<_CharT, _Traits>* __sbout,
			  bool& __ineof)
    {
      streamsize __ret = 0;
      __ineof = true;
      typename _Traits::int_type __c = __sbin->sgetc();
      while (!_Traits::eq_int_type(__c, _Traits::eof()))
	{
	  __c = __sbout->sputc(_Traits::to_char_type(__c));
	  if (_Traits::eq_int_type(__c, _Traits::eof()))
	    {
	      __ineof = false;
	      break;
	    }
	  ++__ret;
	  __c = __sbin->snextc();
	}
      return __ret;
    }

template<typename _CharT, typename _Traits>
    inline streamsize
    __copy_streambufs(basic_streambuf<_CharT, _Traits>* __sbin,
		      basic_streambuf<_CharT, _Traits>* __sbout)
    {
      bool __ineof;
      return __copy_streambufs_eof(__sbin, __sbout, __ineof);
    }

// Inhibit implicit instantiations for required instantiations,
  // which are defined via explicit instantiations elsewhere.
#if _GLIBCXX_EXTERN_TEMPLATE
  extern template class basic_streambuf<char>;
  extern template
    streamsize
    __copy_streambufs(basic_streambuf<char>*,
		      basic_streambuf<char>*);
  extern template
    streamsize
    __copy_streambufs_eof(basic_streambuf<char>*,
			  basic_streambuf<char>*, bool&);

#ifdef _GLIBCXX_USE_WCHAR_T
  extern template class basic_streambuf<wchar_t>;
  extern template
    streamsize
    __copy_streambufs(basic_streambuf<wchar_t>*,
		      basic_streambuf<wchar_t>*);
  extern template
    streamsize
    __copy_streambufs_eof(basic_streambuf<wchar_t>*,
			  basic_streambuf<wchar_t>*, bool&);
#endif
#endif

_GLIBCXX_END_NAMESPACE_VERSION
} // namespace std

#endif

Name	Type	Size	Permission	Last Modified	Actions
.	DIR	-	drwxr-xr-x	2025-08-28 10:58:25
..	DIR	-	drwxr-xr-x	2025-08-28 10:58:25
algorithmfwd.h	text/x-c	21.23 KB	-rw-r--r--	2025-08-26 09:45:00
alloc_traits.h	text/x-c	19.6 KB	-rw-r--r--	2025-08-26 09:45:00
allocated_ptr.h	text/plain	3.22 KB	-rw-r--r--	2025-08-26 09:45:00
allocator.h	text/x-c	7.39 KB	-rw-r--r--	2025-08-26 09:45:00
atomic_base.h	text/x-c	23.28 KB	-rw-r--r--	2025-08-26 09:45:00
atomic_futex.h	text/x-c	9.35 KB	-rw-r--r--	2025-08-26 09:45:00
atomic_lockfree_defines.h	text/plain	2.2 KB	-rw-r--r--	2025-08-26 09:45:07
basic_ios.h	text/x-c	15.7 KB	-rw-r--r--	2025-08-26 09:45:00
basic_ios.tcc	text/plain	5.94 KB	-rw-r--r--	2025-08-26 09:45:00
basic_string.h	text/x-c	237.01 KB	-rw-r--r--	2025-08-26 09:45:00
basic_string.tcc	text/x-c	52.5 KB	-rw-r--r--	2025-08-26 09:45:00
boost_concept_check.h	text/x-c++	26.52 KB	-rw-r--r--	2025-08-26 09:45:00
c++0x_warning.h	text/plain	1.44 KB	-rw-r--r--	2025-08-26 09:45:00
char_traits.h	text/x-c	20.42 KB	-rw-r--r--	2025-08-26 09:45:00
codecvt.h	text/plain	20.79 KB	-rw-r--r--	2025-08-26 09:45:00
concept_check.h	text/x-c	3.34 KB	-rw-r--r--	2025-08-26 09:45:00
cpp_type_traits.h	text/x-c	9.56 KB	-rw-r--r--	2025-08-26 09:45:00
cxxabi_forced.h	text/plain	1.77 KB	-rw-r--r--	2025-08-26 09:45:07
cxxabi_init_exception.h	text/x-c	2.17 KB	-rw-r--r--	2025-08-26 09:45:07
deque.tcc	text/plain	33.32 KB	-rw-r--r--	2025-08-26 09:45:00
enable_special_members.h	text/plain	12.1 KB	-rw-r--r--	2025-08-26 09:45:00
exception.h	text/x-c	2.23 KB	-rw-r--r--	2025-08-26 09:45:07
exception_defines.h	text/plain	1.61 KB	-rw-r--r--	2025-08-26 09:45:07
exception_ptr.h	text/x-c	5.84 KB	-rw-r--r--	2025-08-26 09:45:07
forward_list.h	text/x-c	47.77 KB	-rw-r--r--	2025-08-26 09:45:00
forward_list.tcc	text/plain	12.86 KB	-rw-r--r--	2025-08-26 09:45:00
fs_dir.h	text/plain	14.38 KB	-rw-r--r--	2025-08-26 09:45:00
fs_fwd.h	text/x-c	10.04 KB	-rw-r--r--	2025-08-26 09:45:00
fs_ops.h	text/x-c	9.5 KB	-rw-r--r--	2025-08-26 09:45:00
fs_path.h	text/x-c	32.12 KB	-rw-r--r--	2025-08-26 09:45:00
fstream.tcc	text/x-c	32.03 KB	-rw-r--r--	2025-08-26 09:45:00
functexcept.h	text/x-c	3.18 KB	-rw-r--r--	2025-08-26 09:45:00
functional_hash.h	text/x-c	8.04 KB	-rw-r--r--	2025-08-26 09:45:00
gslice.h	text/plain	5.39 KB	-rw-r--r--	2025-08-26 09:45:00
gslice_array.h	text/plain	7.59 KB	-rw-r--r--	2025-08-26 09:45:00
hash_bytes.h	text/x-c	2.1 KB	-rw-r--r--	2025-08-26 09:45:07
hashtable.h	text/x-c	72.06 KB	-rw-r--r--	2025-08-26 09:45:00
hashtable_policy.h	text/x-c	66.38 KB	-rw-r--r--	2025-08-26 09:45:00
indirect_array.h	text/plain	7.68 KB	-rw-r--r--	2025-08-26 09:45:00
invoke.h	text/x-c	3.57 KB	-rw-r--r--	2025-08-26 09:45:00
ios_base.h	text/x-c	30.3 KB	-rw-r--r--	2025-08-26 09:45:00
istream.tcc	text/x-c	30.36 KB	-rw-r--r--	2025-08-26 09:45:00
list.tcc	text/plain	15.6 KB	-rw-r--r--	2025-08-26 09:45:00
locale_classes.h	text/x-c	24.31 KB	-rw-r--r--	2025-08-26 09:45:00
locale_classes.tcc	text/plain	8.18 KB	-rw-r--r--	2025-08-26 09:45:00
locale_conv.h	text/x-c	15.72 KB	-rw-r--r--	2025-08-26 09:45:00
locale_facets.h	text/x-c	90.16 KB	-rw-r--r--	2025-08-26 09:45:00
locale_facets.tcc	text/plain	38.62 KB	-rw-r--r--	2025-08-26 09:45:00
locale_facets_nonio.h	text/x-c	67.36 KB	-rw-r--r--	2025-08-26 09:45:00
locale_facets_nonio.tcc	text/plain	44.22 KB	-rw-r--r--	2025-08-26 09:45:00
localefwd.h	text/x-c	5.51 KB	-rw-r--r--	2025-08-26 09:45:00
mask_array.h	text/plain	7.42 KB	-rw-r--r--	2025-08-26 09:45:00
memoryfwd.h	text/x-c	2.4 KB	-rw-r--r--	2025-08-26 09:45:00
move.h	text/x-c	6.38 KB	-rw-r--r--	2025-08-26 09:45:00
nested_exception.h	text/x-c	4.69 KB	-rw-r--r--	2025-08-26 09:45:07
node_handle.h	text/x-c	8.02 KB	-rw-r--r--	2025-08-26 09:45:00
ostream.tcc	text/x-c	12.03 KB	-rw-r--r--	2025-08-26 09:45:00
ostream_insert.h	text/x-c	3.91 KB	-rw-r--r--	2025-08-26 09:45:00
parse_numbers.h	text/x-c	7.76 KB	-rw-r--r--	2025-08-26 09:45:00
postypes.h	text/x-c	8.02 KB	-rw-r--r--	2025-08-26 09:45:00
predefined_ops.h	text/plain	8.87 KB	-rw-r--r--	2025-08-26 09:45:00
ptr_traits.h	text/x-c	6.47 KB	-rw-r--r--	2025-08-26 09:45:00
quoted_string.h	text/x-c	4.93 KB	-rw-r--r--	2025-08-26 09:45:00
random.h	text/x-c	171.14 KB	-rw-r--r--	2025-08-26 09:45:00
random.tcc	text/x-c	103.12 KB	-rw-r--r--	2025-08-26 09:45:00
range_access.h	text/x-c	9.79 KB	-rw-r--r--	2025-08-26 09:45:00
refwrap.h	text/x-c	11.61 KB	-rw-r--r--	2025-08-26 09:45:00
regex.h	text/plain	95.12 KB	-rw-r--r--	2025-08-26 09:45:00
regex.tcc	text/plain	16.18 KB	-rw-r--r--	2025-08-26 09:45:00
regex_automaton.h	text/plain	10.47 KB	-rw-r--r--	2025-08-26 09:45:00
regex_automaton.tcc	text/x-Algol68	7.65 KB	-rw-r--r--	2025-08-26 09:45:00
regex_compiler.h	text/plain	17.63 KB	-rw-r--r--	2025-08-26 09:45:00
regex_compiler.tcc	text/plain	18.84 KB	-rw-r--r--	2025-08-26 09:45:00
regex_constants.h	text/plain	14.36 KB	-rw-r--r--	2025-08-26 09:45:00
regex_error.h	text/plain	4.79 KB	-rw-r--r--	2025-08-26 09:45:00
regex_executor.h	text/x-c	7.31 KB	-rw-r--r--	2025-08-26 09:45:00
regex_executor.tcc	text/plain	18.4 KB	-rw-r--r--	2025-08-26 09:45:00
regex_scanner.h	text/x-c	6.92 KB	-rw-r--r--	2025-08-26 09:45:00
regex_scanner.tcc	text/plain	14.66 KB	-rw-r--r--	2025-08-26 09:45:00
shared_ptr.h	text/x-c	22.88 KB	-rw-r--r--	2025-08-26 09:45:00
shared_ptr_atomic.h	text/x-c	9.54 KB	-rw-r--r--	2025-08-26 09:45:00
shared_ptr_base.h	text/x-c	53.01 KB	-rw-r--r--	2025-08-26 09:45:00
slice_array.h	text/plain	9.13 KB	-rw-r--r--	2025-08-26 09:45:00
specfun.h	text/x-c	45.95 KB	-rw-r--r--	2025-08-26 09:45:00
sstream.tcc	text/plain	9.9 KB	-rw-r--r--	2025-08-26 09:45:00
std_abs.h	text/x-c	3.19 KB	-rw-r--r--	2025-08-26 09:45:00
std_function.h	text/x-c	22.71 KB	-rw-r--r--	2025-08-26 09:45:00
std_mutex.h	text/x-c	9.08 KB	-rw-r--r--	2025-08-26 09:45:00
stl_algo.h	text/x-c	209.27 KB	-rw-r--r--	2025-08-26 09:45:00
stl_algobase.h	text/x-c	49.31 KB	-rw-r--r--	2025-08-26 09:45:00
stl_bvector.h	text/x-c	32.94 KB	-rw-r--r--	2025-08-26 09:45:00
stl_construct.h	text/x-c	7.22 KB	-rw-r--r--	2025-08-26 09:45:00
stl_deque.h	text/x-c	76.73 KB	-rw-r--r--	2025-08-26 09:45:00
stl_function.h	text/x-c	40.77 KB	-rw-r--r--	2025-08-26 09:45:00
stl_heap.h	text/x-c	19.73 KB	-rw-r--r--	2025-08-26 09:45:00
stl_iterator.h	text/x-c	41.3 KB	-rw-r--r--	2025-08-26 09:45:00
stl_iterator_base_funcs.h	text/x-c	7.99 KB	-rw-r--r--	2025-08-26 09:45:00
stl_iterator_base_types.h	text/x-c	8.48 KB	-rw-r--r--	2025-08-26 09:45:00
stl_list.h	text/x-c	65.97 KB	-rw-r--r--	2025-08-26 09:45:00
stl_map.h	text/x-c	51.55 KB	-rw-r--r--	2025-08-26 09:45:00
stl_multimap.h	text/x-c	40.58 KB	-rw-r--r--	2025-08-26 09:45:00
stl_multiset.h	text/x-c	34.97 KB	-rw-r--r--	2025-08-26 09:45:00
stl_numeric.h	text/x-c	13.51 KB	-rw-r--r--	2025-08-26 09:45:00
stl_pair.h	text/x-c	18.21 KB	-rw-r--r--	2025-08-26 09:45:00
stl_queue.h	text/x-c	23.51 KB	-rw-r--r--	2025-08-26 09:45:00
stl_raw_storage_iter.h	text/plain	3.74 KB	-rw-r--r--	2025-08-26 09:45:00
stl_relops.h	text/plain	4.49 KB	-rw-r--r--	2025-08-26 09:45:00
stl_set.h	text/x-c	35.28 KB	-rw-r--r--	2025-08-26 09:45:00
stl_stack.h	text/x-c	11.66 KB	-rw-r--r--	2025-08-26 09:45:00
stl_tempbuf.h	text/x-c	8.15 KB	-rw-r--r--	2025-08-26 09:45:00
stl_tree.h	text/x-c	73.15 KB	-rw-r--r--	2025-08-26 09:45:00
stl_uninitialized.h	text/x-c	27.06 KB	-rw-r--r--	2025-08-26 09:45:00
stl_vector.h	text/x-c	59.12 KB	-rw-r--r--	2025-08-26 09:45:00
stream_iterator.h	text/x-c	6.5 KB	-rw-r--r--	2025-08-26 09:45:00
streambuf.tcc	text/plain	4.81 KB	-rw-r--r--	2025-08-26 09:45:00
streambuf_iterator.h	text/x-c	13.44 KB	-rw-r--r--	2025-08-26 09:45:00
string_view.tcc	text/plain	6.54 KB	-rw-r--r--	2025-08-26 09:45:00
stringfwd.h	text/x-c	2.55 KB	-rw-r--r--	2025-08-26 09:45:00
uniform_int_dist.h	text/x-c	9.84 KB	-rw-r--r--	2025-08-26 09:45:00
unique_ptr.h	text/x-c	25.38 KB	-rw-r--r--	2025-08-26 09:45:00
unordered_map.h	text/html	73.58 KB	-rw-r--r--	2025-08-26 09:45:00
unordered_set.h	text/html	57.76 KB	-rw-r--r--	2025-08-26 09:45:00
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valarray_before.h	text/x-c	18.08 KB	-rw-r--r--	2025-08-26 09:45:00
vector.tcc	text/plain	28.95 KB	-rw-r--r--	2025-08-26 09:45:00

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