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//------------------------------------------------------------------------------
// GB_binop_new: create a new operator (user-defined or internal)
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2022, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
// Create a new a binary operator: z = f (x,y). The function pointer may
// be NULL, for implied functions (FIRST and SECOND). It may not be NULL
// otherwise.
// The binary op header is allocated by the caller, and passed in
// uninitialized.
#include "GB.h"
#include "GB_binop.h"
GrB_Info GB_binop_new
(
GrB_BinaryOp op, // new binary operator
GxB_binary_function function, // binary function (may be NULL)
GrB_Type ztype, // type of output z
GrB_Type xtype, // type of input x
GrB_Type ytype, // type of input y
const char *binop_name, // name of the user function
const char *binop_defn, // definition of the user function
const GB_Opcode opcode // opcode for the function
)
{
//--------------------------------------------------------------------------
// check inputs
//--------------------------------------------------------------------------
ASSERT (op != NULL) ;
ASSERT (ztype != NULL) ;
ASSERT (xtype != NULL) ;
ASSERT (ytype != NULL) ;
ASSERT (GB_IS_BINARYOP_CODE (opcode)) ;
//--------------------------------------------------------------------------
// initialize the binary operator
//--------------------------------------------------------------------------
op->magic = GB_MAGIC ;
op->ztype = ztype ;
op->xtype = xtype ;
op->ytype = ytype ;
op->unop_function = NULL ;
op->idxunop_function = NULL ;
op->binop_function = function ; // may be NULL
op->selop_function = NULL ;
op->opcode = opcode ;
//--------------------------------------------------------------------------
// get the binary op name and defn
//--------------------------------------------------------------------------
return (GB_op_name_and_defn (op->name, &(op->defn), &(op->defn_size),
binop_name, binop_defn, "GxB_binary_function", 19)) ;
}
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