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//------------------------------------------------------------------------------
// gb_mxstring_to_binop_or_idxunop: get a GraphBLAS op from a built-in string
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2022, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
#include "gb_interface.h"
void gb_mxstring_to_binop_or_idxunop // binop or idxunop from a string
(
const mxArray *mxstring, // built-in string
const GrB_Type atype, // type of A
const GrB_Type btype, // type of B
// output:
GrB_BinaryOp *op2, // binary op
GrB_IndexUnaryOp *idxunop, // idxunop
int64_t *ithunk // thunk for idxunop
)
{
//--------------------------------------------------------------------------
// check inputs
//--------------------------------------------------------------------------
(*op2) = NULL ;
(*idxunop) = NULL ;
if (gb_mxarray_is_empty (mxstring))
{
// no operator is present, or present and empty
return ;
}
//--------------------------------------------------------------------------
// get the string
//--------------------------------------------------------------------------
#define LEN 256
char opstring [LEN+2] ;
gb_mxstring_to_string (opstring, LEN, mxstring, "binary/index operator") ;
//--------------------------------------------------------------------------
// convert the string to a binary operator or index unary operator
//--------------------------------------------------------------------------
(*op2) = gb_string_to_binop_or_idxunop (opstring, atype, btype, idxunop,
ithunk) ;
}
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