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//------------------------------------------------------------------------------
// GB_Mask_compatible: check input and operators for type compatibility
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2022, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
// check the type and dimensions of the mask
#include "GB.h"
GrB_Info GB_Mask_compatible // check type and dimensions of mask
(
const GrB_Matrix M, // mask to check
const bool Mask_struct, // true if M is structural
const GrB_Matrix C, // C<M>= ...
const GrB_Index nrows, // size of output if C is NULL (see GB*assign)
const GrB_Index ncols,
GB_Context Context
)
{
//--------------------------------------------------------------------------
// check the mask M
//--------------------------------------------------------------------------
if (M != NULL)
{
if (!Mask_struct)
{
// M is typecast to boolean
if (!GB_Type_compatible (M->type, GrB_BOOL))
{
GB_ERROR (GrB_DOMAIN_MISMATCH,
"M of type [%s] cannot be typecast to boolean",
M->type->name) ;
}
// if M is iso and can be typecasted to bool, Mask_struct has been
// set true by GB_get_mask
ASSERT (!M->iso) ;
}
// check the mask dimensions
GrB_Index cnrows = (C == NULL) ? nrows : GB_NROWS (C) ;
GrB_Index cncols = (C == NULL) ? ncols : GB_NCOLS (C) ;
if (GB_NROWS (M) != cnrows || GB_NCOLS (M) != cncols)
{
GB_ERROR (GrB_DIMENSION_MISMATCH,
"M is " GBd "-by-" GBd "; "
"does not match output dimensions (" GBu "-by-" GBu ")",
GB_NROWS (M), GB_NCOLS (M), cnrows, cncols) ;
}
}
return (GrB_SUCCESS) ;
}
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