function test_failed = test_libltfat_gabtight(varargin)
test_failed = 0;

fprintf(' ===============  %s ================ \n',upper(mfilename));

definput.flags.complexity={'double','single'};
[flags]=ltfatarghelper({},definput,varargin);
dataPtr = [flags.complexity, 'Ptr'];

Larr = [12  15  120  120];
aarr = [3   3    10   10];
Marr = [6   5    20   20];

for do_complex = 0:1
    complexstring = '';
    if do_complex, complexstring = 'complex'; end
    for idx = 1:numel(Larr)
        L = Larr(idx);
        a = aarr(idx);
        M = Marr(idx);
        
            if do_complex
                z = cast(randn(L,1)+1i*randn(L,1),flags.complexity);
                zi = complex2interleaved(z);
                zout = randn(size(zi),flags.complexity);
                
                ziPtr = libpointer(dataPtr,zi);
                zoutPtr = libpointer(dataPtr,zout);
            else
                z = cast(randn(L,1),flags.complexity);
                zi = z;
                zout = randn(size(zi),flags.complexity);
                
                ziPtr = libpointer(dataPtr,zi);
                zoutPtr = libpointer(dataPtr,zout);
            end
            
            trueres = gabtight(z,a,M);
            
            funname = makelibraryname('gabtight_long',flags.complexity,do_complex);
            status = calllib('libltfat',funname, ziPtr,L,a,M,zoutPtr);
            
            if do_complex
                res = norm(trueres - interleaved2complex(zoutPtr.Value));
            else
                res = norm(trueres - zoutPtr.Value);
            end
            
            [test_failed,fail]=ltfatdiditfail(res+status,test_failed);
            fprintf(['GABTIGHT OP L:%3i, %s %s %s %s\n'],L,flags.complexity,complexstring,ltfatstatusstring(status),fail);
            
            status = calllib('libltfat',funname,ziPtr,L,a,M,ziPtr);
            
            if do_complex
                res = norm(trueres - interleaved2complex(ziPtr.Value));
            else
                res = norm(trueres - ziPtr.Value);
            end
            
            [test_failed,fail]=ltfatdiditfail(res+status,test_failed);
            fprintf(['GABTIGHT IP L:%3i, %s %s %s %s\n'],L,flags.complexity,complexstring,ltfatstatusstring(status),fail);
            
            
            
            if do_complex
                z = cast(randn(M,1)+1i*randn(M,1),flags.complexity);
                zi = complex2interleaved(z);
                zout = randn(size(zi),flags.complexity);
                
                ziPtr = libpointer(dataPtr,zi);
                zoutPtr = libpointer(dataPtr,zout);
            else
                z = cast(randn(M,1),flags.complexity);
                zi = z;
                zout = randn(size(zi),flags.complexity);
                
                ziPtr = libpointer(dataPtr,zi);
                zoutPtr = libpointer(dataPtr,zout);
            end
            
            trueres = gabtight(z,a,M);
            
            funname = makelibraryname('gabtight_painless',flags.complexity,do_complex);
            status = calllib('libltfat',funname, ziPtr,M,a,M,zoutPtr);
            
            if do_complex
                res = norm(trueres - interleaved2complex(zoutPtr.Value));
            else
                res = norm(trueres - zoutPtr.Value);
            end
            
            [test_failed,fail]=ltfatdiditfail(res+status,test_failed);
            fprintf(['GABTIGHT PAINLESS OP L:%3i, %s %s %s %s\n'],L,flags.complexity,complexstring,ltfatstatusstring(status),fail);
            
            status = calllib('libltfat',funname,ziPtr,M,a,M,ziPtr);
            
            if do_complex
                res = norm(trueres - interleaved2complex(ziPtr.Value));
            else
                res = norm(trueres - ziPtr.Value);
            end
            
            [test_failed,fail]=ltfatdiditfail(res+status,test_failed);
            fprintf(['GABTIGHT PANLESS IP L:%3i, %s %s %s %s\n'],L,flags.complexity,complexstring,ltfatstatusstring(status),fail);
            
    end
end


%-*- texinfo -*-
%@deftypefn {Function} test_libltfat_gabtight
%@verbatim
%@end verbatim
%@strong{Url}: @url{http://ltfat.github.io/doc/libltfat/modules/libltfat/testing/mUnit/test_libltfat_gabtight.html}
%@end deftypefn

% Copyright (C) 2005-2016 Peter L. Soendergaard <peter@sonderport.dk>.
% This file is part of LTFAT version 2.3.1
%
% This program 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 3 of the License, or
% (at your option) any later version.
%
% This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.

