1function C = gbtest_cast (A, type)
2%GBTEST_CAST cast a MATLAB matrix to another type.
3% C = gbtest_cast (A, type) is identical to C = cast (A, type) when type
4% is a valid MATLAB class ('logical', 'int8', 'int16', 'int32', 'int64',
5% 'uint8', 'uint16', 'uint32', 'uint64', 'single', 'double').  Otherwise,
6% A is converted to a single complex or double complex matrix C.
7%
8% A must be a full MATLAB matrix (not sparse).  C is a full MATLAB matrix.
9% To cast any matrix to a GraphBLAS matrix instead, use C = GrB (A, type).
10%
11% See also cast.
12
13% SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2021, All Rights Reserved.
14% SPDX-License-Identifier: GPL-3.0-or-later
15
16if (issparse (A))
17    error ('A must be full') ;
18end
19if (isa (A, 'GrB'))
20    error ('A must be a MATLAB matrix') ;
21end
22
23if (contains (type, 'complex'))
24    if (contains (type, 'single'))
25        C = complex (single (A)) ;
26    else
27        C = complex (double (A)) ;
28    end
29else
30    C = cast (A, type) ;
31end
32
33assert (~issparse (C)) ;
34assert (~isa (C, 'GrB')) ;
35
36