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/*
Copyright (C) 1996 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_dir_ops_h)
#define octave_dir_ops_h 1
#include <string>
#include "str-vec.h"
class
dir_entry
{
public:
dir_entry (const string& n = string ()) : name (n), dir (0)
{
if (! name.empty ())
open ();
}
dir_entry (const dir_entry& d) { copy (d); }
dir_entry& operator = (const dir_entry& d)
{
if (this != &d)
copy (d);
return *this;
}
~dir_entry (void) { close (); }
bool open (const string& = string ());
string_vector read (void);
void close (void);
bool ok (void) const { return dir && ! fail; }
operator void* () const { return ok () ? (void *) -1 : (void *) 0; }
string error (void) const { return ok () ? string () : errmsg; }
private:
// Name of the directory.
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.
string errmsg;
void copy (const dir_entry&);
};
#endif
/*
;;; Local Variables: ***
;;; mode: C++ ***
;;; End: ***
*/
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