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+// File position object and stream types
+
+// Copyright (C) 1997-1999 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)
+// 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.
+
+// 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.
+
+//
+// ISO C++ 14882: 27 Input/output library
+//
+
+#ifndef _CPP_BITS_FPOS_H
+#define _CPP_BITS_FPOS_H 1
+
+// Need this here as well as in std_ios because fpos is used in
+// char_traits, and char_traits is used by string, which may or may
+// not have included the std_ios file.
+#include <bits/c++io.h>
+
+namespace std {
+
+ // 27.4.1 Types
+
+ // 27.4.3 Template class fpos
+ template<typename _StateT>
+ class fpos
+ {
+ public:
+
+ // Types:
+ typedef _StateT __state_type;
+
+ __state_type
+ state() const { return _M_st; }
+
+ void
+ state(__state_type __st) { _M_st = __st; }
+
+ // NB: The standard defines only the implicit copy ctor and the
+ // previous two members. The rest is a "conforming extension".
+ fpos(): _M_st(__state_type()), _M_pos(streamoff()) { }
+
+ fpos(streamoff __pos, __state_type __st)
+ : _M_st(__st), _M_pos(__pos) { }
+
+ fpos(streamoff __pos)
+ : _M_st(), _M_pos(__pos) { }
+
+ operator streamoff() const { return _M_pos; }
+
+ fpos&
+ operator+=(streamoff __off) { _M_pos += __off; return *this; }
+
+ fpos&
+ operator-=(streamoff __off) { _M_pos -= __off; return *this; }
+
+ bool
+ operator==(const fpos& __pos2) const { return _M_pos == __pos2._M_pos; }
+
+ bool
+ operator!=(const fpos& __pos2) const { return _M_pos != __pos2._M_pos; }
+
+ streamoff
+ _M_position() const { return _M_pos; }
+
+ void
+ _M_position(streamoff __pos) { _M_pos = __pos; }
+
+ private:
+ __state_type _M_st;
+ streamoff _M_pos;
+ };
+
+ template<typename _State>
+ inline fpos<_State>
+ operator+(const fpos<_State>& __pos, streamoff __off)
+ {
+ fpos<_State> t(__pos);
+ return t += __off;
+ }
+
+ template<typename _State>
+ inline fpos<_State>
+ operator-(const fpos<_State>& __pos, streamoff __off)
+ {
+ fpos<_State> t(__pos);
+ return t -= __off;
+ }
+
+ template<typename _State>
+ inline streamoff
+ operator-(const fpos<_State>& __pos1, const fpos<_State>& __pos2)
+ { return __pos1._M_position() - __pos2._M_position(); }
+
+} // namespace std
+
+#endif /* _CPP_BITS_FPOS_H */
+
+