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function Mask = GB_spec_getmask (Mask, Mask_struct)
%GB_SPEC_GETMASK return the mask, typecasted to logical
% SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2022, All Rights Reserved.
% SPDX-License-Identifier: Apache-2.0
if (isstruct (Mask))
if (Mask_struct && isfield (Mask, 'pattern'))
Mask = Mask.pattern ;
else
Mask = Mask.matrix ;
end
end
if (Mask_struct)
if (issparse (Mask))
Mask = GB_spones_mex (Mask) ;
else
Mask = true (size (Mask)) ;
end
end
Mask = GB_mex_cast (full (Mask), 'logical') ;
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