File: isempty.sci

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// Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
// Copyright (C) 1998 - INRIA
//
// This file must be used under the terms of the CeCILL.
// This source file is licensed as described in the file COPYING, which
// you should have received as part of this distribution.  The terms
// are also available at
// http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt

function answ=isempty(m)
	
	m_type = type(m);
	
	if( (type(m) >= 11) & (type(m) <= 13) | (type(m) >= 128) ) then
		error(msprintf(gettext("%s: Wrong type for input argument #%d.\n"),"isempty",1));
	end
	
	select m_type
	case 10
		// matrix of character string
		answ = ( max(length(m)) == 0 );
		
	case 15
		// list
		answ = %t;
		for i=1:size(m),
			answ = (answ & isempty(m(i)));
		end;
		
	case 16
		// typed list
		answ = %t;
		for i=1:size(m),
			answ = (answ & isempty(m(i)));
		end;
	
	case 17
		// mlist
		answ = %f;
		
	else
		answ = size(m,'*')==0;
	end
	
endfunction