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function test181
%TEST181 test transpose with explicit zeros in the Mask
% SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2022, All Rights Reserved.
% SPDX-License-Identifier: Apache-2.0
% see also test99
rng ('default') ;
fprintf ('test181: transpose with explicit zeros in the Mask\n') ;
masks = { '', 'complement', 'structural', 'structural complement' } ;
repls = { '', 'replace' } ;
for n = 10:20
for d = 0:.1:1
fprintf ('.') ;
for k = 1:10
C = sprand (n, n, 0.1) ;
A = GB_spec_random (n, n, 0.1) ;
A.sparsity = 4 ;
if (d == 1)
Mask = sparse (rand (n)) ;
else
Mask = sprand (n, n, d) ;
end
if (nnz (Mask) > 0)
[i j x] = find (Mask) ;
nz = length (x) ;
p = randperm (nz, floor(nz/2)) ;
x (p) = 0 ;
i = uint64 (i-1) ;
j = uint64 (j-1) ;
Mask = GB_mex_Matrix_build (i,j,x,n,n,[]) ;
Mask = Mask.matrix ;
end
for k1 = 1:length(masks)
for k2 = 1:2
clear desc
desc.inp0 = 'tran' ;
if (~isempty (masks {k1}))
desc.mask = masks {k1} ;
end
if (~isempty (repls {k2}))
desc.outp = repls {k2} ;
end
C2 = GB_spec_transpose (C, Mask, [], A, desc) ;
C3 = GB_mex_transpose (C, Mask, [], A, desc) ;
GB_spec_compare (C2, C3) ;
C2 = GB_spec_transpose (C, Mask, [], C, desc) ;
C3 = GB_mex_transpose (C, Mask, [], C, desc) ;
GB_spec_compare (C2, C3) ;
end
end
end
end
end
fprintf ('\ntest181: all tests passed\n') ;
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