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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
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