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//------------------------------------------------------------------------------
// GB_mx_Type: get GraphBLAS type of a MATLAB matrix
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2020, All Rights Reserved.
// http://suitesparse.com See GraphBLAS/Doc/License.txt for license.
//------------------------------------------------------------------------------
// Given a MATLAB matrix, return the equivalent GraphBLAS type. For GxB_FC64,
// the Complex type is returned. This may equal GxB_FC64, or it might be the
// user-defined type, as determined by Complex_init in
// GraphBLAS/Demo/Source/usercomplex.c.
#include "GB_mex.h"
GrB_Type GB_mx_Type // returns a GraphBLAS type
(
const mxArray *X // MATLAB matrix to query
)
{
GrB_Type xtype ;
if (X == NULL) return (NULL) ;
if (mxIsComplex (X))
{
switch (mxGetClassID (X))
{
// only single complex and double complex are supported
case mxSINGLE_CLASS : return (GxB_FC32 ) ;
case mxDOUBLE_CLASS : return (Complex ) ;
default : return (NULL ) ;
}
}
else
{
switch (mxGetClassID (X))
{
// all GraphBLAS built-in types are supported
case mxLOGICAL_CLASS : return (GrB_BOOL ) ;
case mxINT8_CLASS : return (GrB_INT8 ) ;
case mxINT16_CLASS : return (GrB_INT16 ) ;
case mxINT32_CLASS : return (GrB_INT32 ) ;
case mxINT64_CLASS : return (GrB_INT64 ) ;
case mxUINT8_CLASS : return (GrB_UINT8 ) ;
case mxUINT16_CLASS : return (GrB_UINT16) ;
case mxUINT32_CLASS : return (GrB_UINT32) ;
case mxUINT64_CLASS : return (GrB_UINT64) ;
case mxSINGLE_CLASS : return (GrB_FP32 ) ;
case mxDOUBLE_CLASS : return (GrB_FP64 ) ;
default : return (NULL ) ;
}
}
}
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