Mercurial > hg > octave-terminal
changeset 1576:75077e1455dd
[project @ 1995-10-19 04:46:37 by jwe]
Initial revision
author | jwe |
---|---|
date | Thu, 19 Oct 1995 04:46:37 +0000 |
parents | 6cc5d208c566 |
children | 4ef4fd7c0abd |
files | scripts/general/strerror.m |
diffstat | 1 files changed, 113 insertions(+), 0 deletions(-) [+] |
line wrap: on
line diff
new file mode 100644 --- /dev/null +++ b/scripts/general/strerror.m @@ -0,0 +1,113 @@ +# Copyright (C) 1995 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. + +function msg = strerror (name, err) + +# usage: msg = strerror (name, err) +# +# Return the text of an error message for error number `err' from +# function "name". +# +# Messages correspond to the following subroutine versions: +# +# npsol : 4.0 +# qpsol : 3.2 + + 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 + + elseif (strcmp (name, "npsol")) + + if (err == 0) + msg = "optimal solution found\n"; + elseif (err == 1) + msg = "weak local solution found\n"; + elseif (err == 2) + msg = "no feasible point for linear constraints and bounds\n"; + elseif (err == 3) + msg = "no feasible point found for nonlinear constraints\n"; + elseif (err == 4) + msg = "iteration limit reached\n"; + elseif (err == 6) + msg = "current point cannot be improved upon\n"; + elseif (err == 7) + msg = "user-supplied derivatives appear to be incorrect\n"; + elseif (err == 9) + msg = "internal error: invalid input parameter\n"; + else + error ("strerror: unrecognized error code for npsol"); + endif + + elseif (strcmp (name, "qpsol")) + + if (err == 0) + msg = "optimal solution found\n"; + elseif (err == 1) + msg = "weak local solution found\n"; + elseif (err == 2) + msg = "solution appears to be unbounded\n"; + elseif (err == 3) + msg = "solution appears optimal, but optimality can't be verified\n"; + elseif (err == 4) + msg = "iterates of the QP phase appear to be cycling\n"; + elseif (err == 5) + msg = "iteration limit reached during QP phase\n"; + elseif (err == 6) + msg = "no feasible point found during LP phase\n"; + elseif (err == 7) + msg = "iterates of the LP phase appear to be cycling\n"; + elseif (err == 8) + msg = "iteration limit reached during LP phase\n"; + elseif (err == 9) + msg = "internal error: invalid input parameter\n"; + else + error ("strerror: unrecognized error code for qpsol"); + endif + + else + + error ("strerror: unrecognized function name"); + + endif + +endfunction