pfstream.h
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上传日期:2009-02-17
资源大小:202k
文件大小:2k
源码类别:
STL
开发平台:
Visual C++
- /* This is part of libio/iostream, providing -*- C++ -*- input/output.
- Copyright (C) 1993 Free Software Foundation
- This file is part of the GNU IO 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, if you link this library with files
- compiled with a GNU compiler to produce an executable, this does not 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. */
- /* Written by Per Bothner (bothner@cygnus.com). */
- #ifndef _PFSTREAM_H
- #define _PFSTREAM_H
- #ifdef __GNUG__
- #pragma interface
- #endif
- #include <fstream.h>
- extern "C++" {
- // ipfstream foo("NAME") is like: ifstream foo("NAME"). However,
- // if NAME starts *or ends* with a '|', the remainder of NAME is
- // evaluated as a shell command (using a procbuf), and all input
- // read from foo is whatever that shell writes to its standard output.
- // E.g. ipfstream foo("|zcat foo.Z") or ipfstream foo("zcat foo.Z|")
- // (These two forms are equivalent.)
- class ipfstream : public ifstream {
- public:
- ipfstream(const char *name, int mode=ios::in, int prot=0664);
- };
- // opfstream foo("NAME") is like: ofstream foo("NAME").
- // However, if NAME starts with a '|', the remainder of NAME is
- // evaluated as a shell command (using a procbuf), and all output
- // written to foo is piped to the standard input of that shell.
- // E.g. opfstream foo("|more");
- class opfstream : public ofstream {
- public:
- opfstream(const char *name, int mode=ios::out, int prot=0664);
- };
- } // extern "C++"
- #endif /*!_PFSTREAM_H*/