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function gbtest90
%GBTEST90 test GrB.reduce
%
% c = GrB.reduce (monoid, A)
% c = GrB.reduce (monoid, A, desc)
% c = GrB.reduce (c, accum, monoid, A)
% c = GrB.reduce (c, accum, monoid, A, desc)
% SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2022, All Rights Reserved.
% SPDX-License-Identifier: Apache-2.0
rng ('default')
C = GrB (pi) ;
accum = '*' ;
monoid = '+' ;
A = GrB.random (9, 9, 0.5) ;
desc = struct ;
c = double (C) ;
a = double (A) ;
%----------------------------------------------------------------------
% c = GrB.reduce (monoid, A)
%----------------------------------------------------------------------
% 1 matrix: A
% 1 string: monoid
C2 = sum (A, 'all') ;
% works in R2019b; fails in R2018a:
% c2 = sum (a, 'all') ;
% works in R2018a:
c2 = sum (a (:)) ;
assert (isequal (c2, C2)) ;
C1 = GrB.reduce (monoid, A) ; assert (isequal (C1, C2)) ;
C1 = GrB.reduce (A, monoid) ; assert (isequal (C1, C2)) ;
C1 = GrB.reduce (monoid, a) ; assert (isequal (C1, C2)) ;
C1 = GrB.reduce (a, monoid) ; assert (isequal (C1, C2)) ;
%----------------------------------------------------------------------
% c = GrB.reduce (monoid, A, desc)
%----------------------------------------------------------------------
% 1 matrix: A
% 1 string: monoid
C2 = sum (A, 'all') ;
c2 = sum (a (:)) ;
assert (isequal (c2, C2)) ;
C1 = GrB.reduce (monoid, A, desc) ; assert (isequal (C1, C2)) ;
C1 = GrB.reduce (A, monoid, desc) ; assert (isequal (C1, C2)) ;
C1 = GrB.reduce (monoid, a, desc) ; assert (isequal (C1, C2)) ;
C1 = GrB.reduce (a, monoid, desc) ; assert (isequal (C1, C2)) ;
%----------------------------------------------------------------------
% c = GrB.reduce (c, accum, monoid, A)
%----------------------------------------------------------------------
% 2 matrices: c, A
% 2 strings: accum, monoid
C2 = C * sum (A, 'all') ;
c2 = c * sum (a (:)) ;
assert (isequal (c2, C2)) ;
C1 = GrB.reduce (C, accum, monoid, A) ; assert (isequal (C1, C2)) ;
C1 = GrB.reduce (C, accum, A, monoid) ; assert (isequal (C1, C2)) ;
C1 = GrB.reduce (C, A, accum, monoid) ; assert (isequal (C1, C2)) ;
C1 = GrB.reduce (accum, C, monoid, A) ; assert (isequal (C1, C2)) ;
C1 = GrB.reduce (accum, C, A, monoid) ; assert (isequal (C1, C2)) ;
C1 = GrB.reduce (accum, monoid, C, A) ; assert (isequal (C1, C2)) ;
C1 = GrB.reduce (c, accum, monoid, a) ; assert (isequal (C1, C2)) ;
C1 = GrB.reduce (c, accum, a, monoid) ; assert (isequal (C1, C2)) ;
C1 = GrB.reduce (c, a, accum, monoid) ; assert (isequal (C1, C2)) ;
C1 = GrB.reduce (accum, c, monoid, a) ; assert (isequal (C1, C2)) ;
C1 = GrB.reduce (accum, c, a, monoid) ; assert (isequal (C1, C2)) ;
C1 = GrB.reduce (accum, monoid, c, a) ; assert (isequal (C1, C2)) ;
%----------------------------------------------------------------------
% c = GrB.reduce (c, accum, monoid, A, desc)
%----------------------------------------------------------------------
% 2 matrices: c, A
% 2 strings: accum, monoid
C2 = C * sum (A, 'all') ;
c2 = c * sum (a (:)) ;
assert (isequal (c2, C2)) ;
C1 = GrB.reduce (C, accum, monoid, A, desc) ; assert (isequal (C1, C2)) ;
C1 = GrB.reduce (C, accum, A, monoid, desc) ; assert (isequal (C1, C2)) ;
C1 = GrB.reduce (C, A, accum, monoid, desc) ; assert (isequal (C1, C2)) ;
C1 = GrB.reduce (accum, C, monoid, A, desc) ; assert (isequal (C1, C2)) ;
C1 = GrB.reduce (accum, C, A, monoid, desc) ; assert (isequal (C1, C2)) ;
C1 = GrB.reduce (accum, monoid, C, A, desc) ; assert (isequal (C1, C2)) ;
C1 = GrB.reduce (c, accum, monoid, a, desc) ; assert (isequal (C1, C2)) ;
C1 = GrB.reduce (c, accum, a, monoid, desc) ; assert (isequal (C1, C2)) ;
C1 = GrB.reduce (c, a, accum, monoid, desc) ; assert (isequal (C1, C2)) ;
C1 = GrB.reduce (accum, c, monoid, a, desc) ; assert (isequal (C1, C2)) ;
C1 = GrB.reduce (accum, c, a, monoid, desc) ; assert (isequal (C1, C2)) ;
C1 = GrB.reduce (accum, monoid, c, a, desc) ; assert (isequal (C1, C2)) ;
fprintf ('gbtest90: all tests passed\n') ;
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