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function w = GB_spec_Vector_eWiseUnion (w, mask, accum, add, u, alpha, v, beta, descriptor)
%GB_SPEC_VECTOR_EWISEADD a mimic of GxB_Vector_eWiseUnion
%
% Usage:
% w = GB_spec_Vector_eWiseUnion (w, mask, accum, add, u, v, descriptor)
%
% Computes w<mask> = accum(w,t), in GraphBLAS notation, where t =u+v,
% The pattern of t is the union of u and v.
% SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2022, All Rights Reserved.
% SPDX-License-Identifier: Apache-2.0
%-------------------------------------------------------------------------------
% get inputs
%-------------------------------------------------------------------------------
if (nargout > 1 || nargin ~= 9)
error ('usage: C = GB_spec_Vector_eWiseUnion (w, mask, accum, add, u, alpha, v, beta, descriptor)') ;
end
% make sure u is a column vector
if (isstruct (u))
n = size (u.matrix, 2) ;
else
n = size (u, 2);
end
if (n ~= 1)
error ('u must be a vector') ;
end
% GraphBLAS does not allow u or v to be transposed via the descriptor
if (isfield (descriptor, 'inp0'))
descriptor = rmfield (descriptor, 'inp0') ;
end
if (isfield (descriptor, 'inp1'))
descriptor = rmfield (descriptor, 'inp1') ;
end
w = GB_spec_Matrix_eWiseUnion (w, mask, accum, add, u, alpha, v, beta, descriptor) ;
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