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PATH: usr / include / c++ / 4.8.2 / bits

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

// Copyright (C) 1997-2013 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

[-] streambuf.tcc [edit]
[-] unique_ptr.h [edit]
[-] random.tcc [edit]
[-] istream.tcc [edit]
[-] functexcept.h [edit]
[-] valarray_after.h [edit]
[-] atomic_base.h [edit]
[-] locale_classes.h [edit]
[-] locale_facets_nonio.h [edit]
[-] alloc_traits.h [edit]
[-] memoryfwd.h [edit]
[-] stl_algobase.h [edit]
[-] locale_facets.h [edit]
[-] hashtable.h [edit]
[-] stl_multiset.h [edit]
[-] stl_stack.h [edit]
[+] ..
[-] stl_pair.h [edit]
[-] boost_concept_check.h [edit]
[-] unordered_map.h [edit]
[-] stl_uninitialized.h [edit]
[-] regex_grep_matcher.h [edit]
[-] stl_set.h [edit]
[-] concept_check.h [edit]
[-] regex_nfa.h [edit]
[-] stl_multimap.h [edit]
[-] deque.tcc [edit]
[-] valarray_array.tcc [edit]
[-] basic_string.h [edit]
[-] regex_nfa.tcc [edit]
[-] vector.tcc [edit]
[-] valarray_before.h [edit]
[-] regex.h [edit]
[-] stream_iterator.h [edit]
[-] ptr_traits.h [edit]
[-] stl_function.h [edit]
[-] stl_vector.h [edit]
[-] shared_ptr.h [edit]
[-] list.tcc [edit]
[-] stl_iterator_base_types.h [edit]
[-] stl_tempbuf.h [edit]
[-] algorithmfwd.h [edit]
[-] move.h [edit]
[-] shared_ptr_base.h [edit]
[-] mask_array.h [edit]
[-] hash_bytes.h [edit]
[-] allocator.h [edit]
[-] ostream.tcc [edit]
[-] regex_compiler.h [edit]
[-] cxxabi_forced.h [edit]
[-] ostream_insert.h [edit]
[-] uses_allocator.h [edit]
[-] forward_list.h [edit]
[-] exception_defines.h [edit]
[-] streambuf_iterator.h [edit]
[-] stl_iterator.h [edit]
[-] gslice.h [edit]
[-] locale_facets.tcc [edit]
[-] c++0x_warning.h [edit]
[-] cpp_type_traits.h [edit]
[-] stl_numeric.h [edit]
[-] stl_bvector.h [edit]
[-] stl_tree.h [edit]
[-] exception_ptr.h [edit]
[-] stl_raw_storage_iter.h [edit]
[-] ios_base.h [edit]
[-] regex_cursor.h [edit]
[-] regex_constants.h [edit]
[-] indirect_array.h [edit]
[-] valarray_array.h [edit]
[-] stl_algo.h [edit]
[-] basic_ios.tcc [edit]
[-] stl_relops.h [edit]
[-] char_traits.h [edit]
[-] postypes.h [edit]
[-] locale_facets_nonio.tcc [edit]
[-] stl_list.h [edit]
[-] nested_exception.h [edit]
[-] hashtable_policy.h [edit]
[-] stl_heap.h [edit]
[-] slice_array.h [edit]
[-] stringfwd.h [edit]
[-] basic_ios.h [edit]
[-] forward_list.tcc [edit]
[-] basic_string.tcc [edit]
[-] codecvt.h [edit]
[-] locale_classes.tcc [edit]
[-] atomic_lockfree_defines.h [edit]
[-] fstream.tcc [edit]
[-] range_access.h [edit]
[-] stl_map.h [edit]
[-] functional_hash.h [edit]
[-] regex_error.h [edit]
[-] stl_deque.h [edit]
[-] stl_construct.h [edit]
[-] stl_iterator_base_funcs.h [edit]
[-] random.h [edit]
[-] sstream.tcc [edit]
[-] unordered_set.h [edit]
[-] regex_grep_matcher.tcc [edit]
[-] stl_queue.h [edit]
[-] gslice_array.h [edit]
[-] localefwd.h [edit]