File: GB_spec_getmask.m

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suitesparse 1%3A7.11.0%2Bdfsg-2
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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) 2017-2025, 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') ;