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function test27
%TEST27 test GxB_select with user-defined select op (LoHi_band)
% SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2022, All Rights Reserved.
% SPDX-License-Identifier: Apache-2.0
fprintf ('test 27: GxB_select with user-defined op (LoHi_band)\n') ;
for m = 1:10
for n = 1:10
fprintf ('.') ;
A = sprand (m, n, 0.1) ;
for lo = -12:12
for hi = -12:12
C1 = GB_mex_band (A, lo, hi, 0) ;
C2 = triu (tril (A,hi), lo) ;
assert (isequal (C1, C2)) ;
C1 = GB_mex_band (A, lo, hi, 1) ;
C2 = triu (tril (A',hi), lo) ;
assert (isequal (C1, C2)) ;
end
end
end
end
fprintf ('\ntest27: all tests passed\n') ;
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