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//------------------------------------------------------------------------------
// GB_positional_unop_ijflip: swap i and j in a unary positional op
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2022, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
// Flip i and j to handle the CSR/CSC variations, for unary positional ops.
#include "GB.h"
GrB_UnaryOp GB_positional_unop_ijflip // return flipped operator
(
GrB_UnaryOp op // operator to flip
)
{
ASSERT (op != NULL) ;
if (op->ztype == GrB_INT64)
{
switch (op->opcode)
{
case GB_POSITIONI_unop_code : return (GxB_POSITIONJ_INT64 ) ;
case GB_POSITIONI1_unop_code : return (GxB_POSITIONJ1_INT64) ;
case GB_POSITIONJ_unop_code : return (GxB_POSITIONI_INT64 ) ;
case GB_POSITIONJ1_unop_code : return (GxB_POSITIONI1_INT64) ;
default: ;
}
}
else
{
switch (op->opcode)
{
case GB_POSITIONI_unop_code : return (GxB_POSITIONJ_INT32 ) ;
case GB_POSITIONI1_unop_code : return (GxB_POSITIONJ1_INT32) ;
case GB_POSITIONJ_unop_code : return (GxB_POSITIONI_INT32 ) ;
case GB_POSITIONJ1_unop_code : return (GxB_POSITIONI1_INT32) ;
default: ;
}
}
// non-positional op is returned unmodified
return (op) ;
}
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