Mercurial > octave
view libinterp/corefcn/oct-fstrm.cc @ 31197:8d4c87e88d0e
maint: Merge stable to default.
author | Markus Mützel <markus.muetzel@gmx.de> |
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date | Tue, 23 Aug 2022 19:45:19 +0200 |
parents | 796f54d4ddbf |
children | e88a07dec498 |
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//////////////////////////////////////////////////////////////////////// // // Copyright (C) 1996-2022 The Octave Project Developers // // See the file COPYRIGHT.md in the top-level directory of this // distribution or <https://octave.org/copyright/>. // // 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 3 of the License, 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, see // <https://www.gnu.org/licenses/>. // //////////////////////////////////////////////////////////////////////// #if defined (HAVE_CONFIG_H) # include "config.h" #endif #include <cerrno> #include <cstring> #include "error.h" #include "oct-fstrm.h" OCTAVE_NAMESPACE_BEGIN stream fstream::create (const std::string& nm_arg, std::ios::openmode arg_md, mach_info::float_format ff) { return stream (new fstream (nm_arg, arg_md, ff)); } fstream::fstream (const std::string& nm_arg, std::ios::openmode arg_md, mach_info::float_format ff) : base_stream (arg_md, ff), m_name (nm_arg) { m_fstream.open (m_name.c_str (), arg_md); if (! m_fstream) // Note: error is inherited from base_stream, not ::error. error (std::strerror (errno)); } // Position a stream at OFFSET relative to ORIGIN. int fstream::seek (off_t, int) { // Note: error is inherited from base_stream, not ::error. // This error function does not halt execution so "return ..." must exist. error ("fseek: invalid_operation"); return -1; } // Return current stream position. off_t fstream::tell (void) { // Note: error is inherited from base_stream, not ::error. // This error function does not halt execution so "return ..." must exist. error ("ftell: invalid_operation"); return -1; } // Return nonzero if EOF has been reached on this stream. bool fstream::eof (void) const { return m_fstream.eof (); } void fstream::do_close (void) { m_fstream.close (); } std::istream * fstream::input_stream (void) { std::istream *retval = nullptr; if (mode () & std::ios::in) retval = &m_fstream; return retval; } std::ostream * fstream::output_stream (void) { std::ostream *retval = nullptr; if (mode () & std::ios::out) retval = &m_fstream; return retval; } OCTAVE_NAMESPACE_END