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//------------------------------------------------------------------------------
// gbmonoidinfo : print a GraphBLAS monoid (for illustration only)
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2022, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
// Usage:
// gbmonoidinfo (monoid)
// gbmonoidinfo (monoid, type)
#include "gb_interface.h"
#define USAGE "usage: GrB.monoidinfo (monoid) or GrB.monoidinfo (monoid,type)"
void mexFunction
(
int nargout,
mxArray *pargout [ ],
int nargin,
const mxArray *pargin [ ]
)
{
//--------------------------------------------------------------------------
// check inputs
//--------------------------------------------------------------------------
gb_usage (nargin >= 1 && nargin <= 2 && nargout == 0, USAGE) ;
//--------------------------------------------------------------------------
// construct the GraphBLAS monoid and print it
//--------------------------------------------------------------------------
#define LEN 256
char opstring [LEN+2] ;
gb_mxstring_to_string (opstring, LEN, pargin [0], "binary operator") ;
GrB_Type type = NULL ;
if (nargin > 1)
{
type = gb_mxstring_to_type (pargin [1]) ;
CHECK_ERROR (type == NULL, "unknown type") ;
}
GrB_Monoid op = gb_mxstring_to_monoid (pargin [0], type) ;
OK (GxB_Monoid_fprint (op, opstring, GxB_COMPLETE, NULL)) ;
GB_WRAPUP ;
}
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