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/* Copyright (C) 2013, 2016 D. V. Wiebe
*
***************************************************************************
*
* This file is part of the GetData project.
*
* GetData is free software; you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the
* Free Software Foundation; either version 2.1 of the License, or (at your
* option) any later version.
*
* GetData 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 Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with GetData; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "gd_matlab.h"
/*
% GD_ERROR_STRING retrieve the library error string
%
% S = GD_ERROR_STRING(DIRFILE)
% returns the error string, S, associated with the last call to the
% C GetData library. Since the MATLAB bindings throw exceptions
% on library error, it is only ever useful to use this inside a
% CATCH block after a GetData Library error has been thrown. In
% this case, the .message member of thrown MEXCEPTION object also
% contains this string.
%
% The DIRFILE object should have previously been created with GD_OPEN.
%
% See the documentation on the C API function gd_error_string(3) in section 3
% of the UNIX manual for more details.
%
% See also GD_ERROR, GD_OPEN
*/
void mexFunction(int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[])
{
DIRFILE *D;
char *s;
GDMX_CHECK_RHS(1);
D = gdmx_to_dirfile(prhs[0]);
s = gd_error_string(D, NULL, 0);
plhs[0] = gdmx_from_string(s);
mxFree(s);
}
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