1function C = or (A, B) 2%| logical OR. 3% C = (A | B) is the element-by-element logical OR of A and B. One or 4% both may be scalars. Otherwise, A and B must have the same size. 5% 6% See also GrB/and, GrB/xor, GrB/not. 7 8% SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2021, All Rights Reserved. 9% SPDX-License-Identifier: GPL-3.0-or-later 10 11if (isobject (A)) 12 A = A.opaque ; 13end 14 15if (isobject (B)) 16 B = B.opaque ; 17end 18 19[am, an, ~] = gbsize (A) ; 20[bm, bn, ~] = gbsize (B) ; 21a_is_scalar = (am == 1) && (an == 1) ; 22b_is_scalar = (bm == 1) && (bn == 1) ; 23 24if (a_is_scalar) 25 if (b_is_scalar) 26 % A and B are scalars 27 C = GrB (gbemult (A, '|.logical', B)) ; 28 else 29 % A is a scalar, B is a matrix 30 if (gb_scalar (A) == 0) 31 % A is false, so C is B typecasted to logical 32 C = GrB (gbnew (B, 'logical')) ; 33 else 34 % A is true, so C is a full matrix the same size as B 35 C = GrB (gb_scalar_to_full (bm, bn, 'logical', gb_fmt (B), true)) ; 36 end 37 end 38else 39 if (b_is_scalar) 40 % A is a matrix, B is a scalar 41 if (gb_scalar (B) == 0) 42 % B is false, so C is A typecasted to logical 43 C = GrB (A, 'logical') ; 44 else 45 % B is true, so C is a full matrix the same size as A 46 C = GrB (gb_scalar_to_full (am, an, 'logical', gb_fmt (A), true)) ; 47 end 48 else 49 % both A and B are matrices. C is the set union of A and B 50 C = GrB (gbeadd (A, '|.logical', B)) ; 51 end 52end 53 54