Mercurial > octave-nkf
view src/oct-stdstrm.h @ 4327:c29c382a5b4b
[project @ 2003-02-16 03:24:26 by jwe]
author | jwe |
---|---|
date | Sun, 16 Feb 2003 03:24:26 +0000 |
parents | 1cae4472c624 |
children | 34014c0fb2ce |
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/* Copyright (C) 1996, 1997 John W. Eaton This file is part of Octave. Octave 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. Octave 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 Octave; see the file COPYING. If not, write to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #if !defined (octave_octave_stdiostream_h) #define octave_octave_stdiostream_h 1 #include "oct-stream.h" #include "c-file-ptr-stream.h" class octave_stdiostream : public octave_base_stream { public: octave_stdiostream (const std::string& n, FILE *f = 0, std::ios::openmode arg_md = std::ios::in|std::ios::out, oct_mach_info::float_format flt_fmt = oct_mach_info::native, c_file_ptr_buf::close_fcn cf = c_file_ptr_buf::fclose) : octave_base_stream (arg_md, flt_fmt), nm (n), md (arg_md), s(0) { if (f) s = new io_c_file_ptr_stream (f, cf); } static octave_stream create (const std::string& n, FILE *f = 0, std::ios::openmode arg_md = std::ios::in|std::ios::out, oct_mach_info::float_format flt_fmt = oct_mach_info::native, c_file_ptr_buf::close_fcn cf = c_file_ptr_buf::fclose) { return octave_stream (new octave_stdiostream (n, f, arg_md, flt_fmt, cf)); } // Position a stream at OFFSET relative to ORIGIN. int seek (std::streamoff offset, std::ios::seekdir origin); // Return current stream position. long tell (void) const; // Return non-zero if EOF has been reached on this stream. bool eof (void) const { return s ? s->eof () : true; } // The name of the file. std::string name (void) const { return nm; } std::istream *input_stream (void) { return (md & std::ios::in) ? s : 0; } std::ostream *output_stream (void) { return (md & std::ios::in) ? s : 0; } // XXX FIXME XXX -- should not have to cast away const here. c_file_ptr_buf *rdbuf (void) const { return s ? (const_cast<io_c_file_ptr_stream *> (s))->rdbuf () : 0; } bool bad (void) const { return s ? s->bad () : true; } void clear (void) { if (s) s->clear (); } void do_close (void) { if (s) s->close (); } protected: std::string nm; std::ios::openmode md; io_c_file_ptr_stream *s; ~octave_stdiostream (void) { delete s; } private: // No copying! octave_stdiostream (const octave_stdiostream&); octave_stdiostream& operator = (const octave_stdiostream&); }; #endif /* ;;; Local Variables: *** ;;; mode: C++ *** ;;; End: *** */