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function test131
%TEST131 test GrB_Matrix_clear
% SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2020, All Rights Reserved.
% http://suitesparse.com See GraphBLAS/Doc/License.txt for license.
fprintf ('\ntest131: GrB_Matrix_clear\n') ;
rng ('default') ;
A = sparse (rand (4)) ;
C = GB_mex_clear (A) ;
S = sparse (4,4) ;
assert (isequal (S, C.matrix)) ;
Ahyper.matrix = A ;
Ahyper.is_hyper = true ;
C = GB_mex_clear (Ahyper) ;
assert (isequal (S, C.matrix)) ;
A = sparse (rand (4,1)) ;
C = GB_mex_clear (A) ;
S = sparse (4,1) ;
assert (isequal (S, C.matrix)) ;
fprintf ('\ntest131: all tests passed\n') ;
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