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//------------------------------------------------------------------------------
// GxB_Monoid_terminal: return the terminal of a monoid (if any)
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2022, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
#include "GB.h"
GrB_Info GxB_Monoid_terminal // return the monoid terminal
(
bool *has_terminal, // true if the monoid has a terminal value
void *terminal, // returns the terminal of the monoid,
// unmodified if has_terminal is false
GrB_Monoid monoid // monoid to query
)
{
//--------------------------------------------------------------------------
// check inputs
//--------------------------------------------------------------------------
GB_WHERE1 ("GxB_Monoid_terminal (&has_terminal, &terminal, monoid)") ;
GB_RETURN_IF_NULL (has_terminal) ;
GB_RETURN_IF_NULL (terminal) ;
GB_RETURN_IF_NULL_OR_FAULTY (monoid) ;
ASSERT_MONOID_OK (monoid, "monoid for terminal", GB0) ;
//--------------------------------------------------------------------------
// return the terminal
//--------------------------------------------------------------------------
(*has_terminal) = (monoid->terminal != NULL) ;
if (*has_terminal)
{
memcpy (terminal, monoid->terminal, monoid->op->ztype->size) ;
}
#pragma omp flush
return (GrB_SUCCESS) ;
}
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