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function gbtest36
%GBTEST36 test abs, sign
% SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2022, All Rights Reserved.
% SPDX-License-Identifier: Apache-2.0
rng ('default') ;
types = gbtest_types ;
for k = 1:length (types)
type = types {k} ;
A = floor (100 * (rand (3, 3) - 0.5)) ;
A (1,1) = 0 ;
if (type (1) == 'u')
A = max (A, 0) ;
end
G = GrB (A, type) ;
B = gbtest_cast (A, type) ;
assert (gbtest_eq (B, G))
H = abs (G) ;
C = abs (B) ;
assert (gbtest_eq (double (C), double (H)))
H = sign (G) ;
if (isequal (type, 'logical'))
C = double (B) ;
else
C = sign (B) ;
end
assert (gbtest_err (C, H) == 0)
end
fprintf ('gbtest36: all tests passed\n') ;
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