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function test212
%TEST212 test iso mask all zero
% SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2022, All Rights Reserved.
% SPDX-License-Identifier: Apache-2.0
rng ('default') ;
GrB.burble (1) ;
n = 10 ;
Cin.matrix = sprand (n, n, 0.5) ;
Cin.class = 'double' ;
A.matrix = sprand (n, n, 0.5) ;
A.class = 'double' ;
M.matrix = false (n,n) ;
M.pattern = logical (sprand (n, n, 0.5)) ;
M.iso = true ;
op.opname = 'sqrt' ;
op.optype = 'double' ;
desc = struct ('mask', 'complement') ;
C1 = GB_mex_apply (Cin, M, [ ], op, A, [ ]) ;
C2 = GB_spec_apply (Cin, M, [ ], op, A, [ ]) ;
GB_spec_compare (C1, C2) ;
C1 = GB_mex_apply (Cin, M, [ ], op, A, desc) ;
C2 = GB_spec_apply (Cin, M, [ ], op, A, desc) ;
GB_spec_compare (C1, C2) ;
M.matrix = true (n,n) ;
C1 = GB_mex_apply (Cin, M, [ ], op, A, [ ]) ;
C2 = GB_spec_apply (Cin, M, [ ], op, A, [ ]) ;
GB_spec_compare (C1, C2) ;
C1 = GB_mex_apply (Cin, M, [ ], op, A, desc) ;
C2 = GB_spec_apply (Cin, M, [ ], op, A, desc) ;
GB_spec_compare (C1, C2) ;
GrB.burble (0) ;
fprintf ('\ntest212: all tests passed\n') ;
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