// Iostreams wrapper for stdio FILE* -*- C++ -*-
-// Copyright (C) 2003 Free Software Foundation, Inc.
+// Copyright (C) 2003-2014 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 2, or (at your option)
+// 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,
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
-// You should have received a copy of the GNU General Public License along
-// with this library; see the file COPYING. If not, write to the Free
-// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
-// USA.
-
-// As a special exception, you may use this file as part of a free software
-// library without restriction. Specifically, if other files instantiate
-// templates or use macros or inline functions from this file, or you compile
-// this file and link it with other files to produce an executable, this
-// file does not by itself cause the resulting executable to be covered by
-// the GNU General Public License. This exception does not however
-// invalidate any other reasons why the executable file might be covered by
-// the GNU General Public License.
-
-/** @file ext/stdiostream.h
+// 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 ext/stdio_sync_filebuf.h
* This file is a GNU extension to the Standard C++ Library.
*/
#include <streambuf>
#include <unistd.h>
-
-#if defined(_GLIBCXX_HAVE_S_ISREG) || defined(_GLIBCXX_HAVE_S_IFREG)
-# include <sys/stat.h>
-# ifdef _GLIBCXX_HAVE_S_ISREG
-# define _GLIBCXX_ISREG(x) S_ISREG(x)
-# else
-# define _GLIBCXX_ISREG(x) (((x) & S_IFMT) == S_IFREG)
-# endif
-#endif
-
#include <cstdio>
+#include <bits/c++io.h> // For __c_file
#ifdef _GLIBCXX_USE_WCHAR_T
#include <cwchar>
#endif
-namespace __gnu_cxx
+namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+ /**
+ * @brief Provides a layer of compatibility for C.
+ * @ingroup io
+ *
+ * This GNU extension provides extensions for working with standard
+ * C FILE*'s. It must be instantiated by the user with the type of
+ * character used in the file stream, e.g., stdio_filebuf<char>.
+ */
template<typename _CharT, typename _Traits = std::char_traits<_CharT> >
class stdio_sync_filebuf : public std::basic_streambuf<_CharT, _Traits>
{
: _M_file(__f), _M_unget_buf(traits_type::eof())
{ }
- protected:
+ /**
+ * @return The underlying FILE*.
+ *
+ * This function can be used to access the underlying C file pointer.
+ * Note that there is no way for the library to track what you do
+ * with the file, so be careful.
+ */
+ std::__c_file* const
+ file() { return this->_M_file; }
+ protected:
int_type
syncgetc();
virtual std::streamsize
xsgetn(char_type* __s, std::streamsize __n);
- virtual std::streamsize
- showmanyc()
- {
-#if defined(_GLIBCXX_HAVE_S_ISREG) || defined(_GLIBCXX_HAVE_S_IFREG)
- // Regular files.
- struct stat __buffer;
- int __ret = fstat(fileno(_M_file), &__buffer);
- if (!__ret && _GLIBCXX_ISREG(__buffer.st_mode))
- return __buffer.st_size - ftell(_M_file);
-#endif
- return 0;
- }
-
virtual int_type
overflow(int_type __c = traits_type::eof())
{
extern template class stdio_sync_filebuf<wchar_t>;
#endif
#endif
-} // namespace __gnu_cxx
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
#endif