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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.
-
- ## usage: msg = strerror (name, err)
- ##
- ## Return the text of an error message for error number `err' from
- ## function "name".
-
- ## Author: jwe
-
- function msg = strerror (name, err)
-
- if (nargin != 2)
- usage ("strerror (name, err)");
- endif
-
- if (! isstr (name))
- error ("strerror: first argument must be a string");
- endif
-
- if (! is_scalar (err))
- error ("strerror: second argument must be a scalar");
- endif
-
- if (strcmp (name, "fsolve"))
-
- if (err == -2)
- msg = "input error\n";
- elseif (err == -1)
- msg = "error encountered in user-supplied function\n";
- elseif (err == 1)
- msg = "solution converged to requested tolerance\n";
- elseif (err == 4)
- msg = "iteration limit exceeded\n";
- elseif (err == 3)
- msg = "iteration is not making good progress\n";
- else
- error ("strerror: unrecognized error code for fsolve");
- endif
-
- else
-
- error ("strerror: unrecognized function name");
-
- endif
-
- endfunction
-