Mercurial > octave
view liboctave/system/dir-ops.h @ 27919:1891570abac8
update Octave Project Developers copyright for the new year
In files that have the "Octave Project Developers" copyright notice,
update for 2020.
author | John W. Eaton <jwe@octave.org> |
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date | Mon, 06 Jan 2020 22:29:51 -0500 |
parents | b442ec6dda5c |
children | bd51beb6205e |
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/* Copyright (C) 1996-2020 The Octave Project Developers See the file COPYRIGHT.md in the top-level directory of this distribution or <https://octave.org/COPYRIGHT.html/>. 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 (octave_dir_ops_h) #define octave_dir_ops_h 1 #include "octave-config.h" #include <string> #include "str-vec.h" namespace octave { namespace sys { class OCTAVE_API dir_entry { // NOTE: This class cannot be used safely cross-platform (Windows) with // non-ASCII characters in paths. // Consider replacing the implementation using std::filesystem (C++ 17). // In the meantime, consider using octave::sys::get_dirlist instead. public: dir_entry (const std::string& n = "") : name (n), dir (nullptr), fail (false), errmsg () { if (! name.empty ()) open (); } dir_entry (const dir_entry& d) : name (d.name), dir (d.dir), fail (d.fail), errmsg (d.errmsg) { } dir_entry& operator = (const dir_entry& d) { if (this != &d) { name = d.name; dir = d.dir; fail = d.fail; errmsg = d.errmsg; } return *this; } ~dir_entry (void) { close (); } bool open (const std::string& = ""); string_vector read (void); bool close (void); bool ok (void) const { return dir && ! fail; } operator bool () const { return ok (); } std::string error (void) const { return ok () ? "" : errmsg; } static unsigned int max_name_length (void); private: // Name of the directory. std::string name; // A pointer to the contents of the directory. We use void here to // avoid possible conflicts with the way some systems declare the // type DIR. void *dir; // TRUE means the open for this directory failed. bool fail; // If a failure occurs, this contains the system error text. std::string errmsg; }; } } #endif