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//------------------------------------------------------------------------------
// GB_selectop_to_idxunop: convert a GxB_SelectOp to a GrB_IndexUnaryOp
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2025, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
// The GxB_SelectOp is historical, and part of its functionality is now
// deprecated. In particular, user-defined GxB_SelectOps are not supported.
// The GxB_EQ* and GxB_NE* operators are not supported for user-defined types.
// Otherwise, this function converts a supported GxB_SelectOp and its optional
// Thunk scalar into its corresponding GrB_IndexUnaryOp and its required
// NewThunk scalar.
#define GB_FREE_ALL \
{ \
GB_Matrix_free ((GrB_Matrix *) &NewThunk) ; \
}
#include "select/GB_select.h"
GrB_Info GB_selectop_to_idxunop
(
// output:
GrB_IndexUnaryOp *idxunop_handle,
GrB_Scalar *NewThunk_handle,
// input:
GxB_SelectOp selectop,
GrB_Scalar Thunk,
GrB_Type atype,
GB_Werk Werk
)
{
//--------------------------------------------------------------------------
// check inputs
//--------------------------------------------------------------------------
GrB_Info info ;
GrB_Scalar NewThunk = NULL ;
GrB_IndexUnaryOp idxunop = NULL ;
GB_RETURN_IF_NULL_OR_FAULTY (selectop) ;
ASSERT (idxunop_handle != NULL) ;
ASSERT (NewThunk_handle != NULL) ;
ASSERT_OP_OK ((GB_Operator) selectop, "selop to convert to idxunop", GB0) ;
ASSERT_TYPE_OK (atype, "atype for selectop_to_idxunop", GB0) ;
ASSERT (GB_IS_SELECTOP_CODE (selectop->opcode)) ;
(*idxunop_handle) = NULL ;
(*NewThunk_handle) = NULL ;
GB_Type_code acode = atype->code ;
//--------------------------------------------------------------------------
// find the new GrB_IndexUnaryOp
//--------------------------------------------------------------------------
switch (selectop->opcode)
{
// built-in positional select operators: thunk optional; defaults to 0
case GB_TRIL_selop_code : idxunop = GrB_TRIL ; break ;
case GB_TRIU_selop_code : idxunop = GrB_TRIU ; break ;
case GB_DIAG_selop_code : idxunop = GrB_DIAG ; break ;
case GB_OFFDIAG_selop_code : idxunop = GrB_OFFDIAG ; break ;
// built-in select comparators, thunk defaults to zero
case GB_NONZERO_selop_code : Thunk = NULL ;
case GB_NE_THUNK_selop_code :
switch (acode)
{
case GB_BOOL_code : idxunop = GrB_VALUENE_BOOL ; break ;
case GB_INT8_code : idxunop = GrB_VALUENE_INT8 ; break ;
case GB_INT16_code : idxunop = GrB_VALUENE_INT16 ; break ;
case GB_INT32_code : idxunop = GrB_VALUENE_INT32 ; break ;
case GB_INT64_code : idxunop = GrB_VALUENE_INT64 ; break ;
case GB_UINT8_code : idxunop = GrB_VALUENE_UINT8 ; break ;
case GB_UINT16_code : idxunop = GrB_VALUENE_UINT16 ; break ;
case GB_UINT32_code : idxunop = GrB_VALUENE_UINT32 ; break ;
case GB_UINT64_code : idxunop = GrB_VALUENE_UINT64 ; break ;
case GB_FP32_code : idxunop = GrB_VALUENE_FP32 ; break ;
case GB_FP64_code : idxunop = GrB_VALUENE_FP64 ; break ;
case GB_FC32_code : idxunop = GxB_VALUENE_FC32 ; break ;
case GB_FC64_code : idxunop = GxB_VALUENE_FC64 ; break ;
default:;
}
break ;
case GB_EQ_ZERO_selop_code : Thunk = NULL ;
case GB_EQ_THUNK_selop_code :
switch (acode)
{
case GB_BOOL_code : idxunop = GrB_VALUEEQ_BOOL ; break ;
case GB_INT8_code : idxunop = GrB_VALUEEQ_INT8 ; break ;
case GB_INT16_code : idxunop = GrB_VALUEEQ_INT16 ; break ;
case GB_INT32_code : idxunop = GrB_VALUEEQ_INT32 ; break ;
case GB_INT64_code : idxunop = GrB_VALUEEQ_INT64 ; break ;
case GB_UINT8_code : idxunop = GrB_VALUEEQ_UINT8 ; break ;
case GB_UINT16_code : idxunop = GrB_VALUEEQ_UINT16 ; break ;
case GB_UINT32_code : idxunop = GrB_VALUEEQ_UINT32 ; break ;
case GB_UINT64_code : idxunop = GrB_VALUEEQ_UINT64 ; break ;
case GB_FP32_code : idxunop = GrB_VALUEEQ_FP32 ; break ;
case GB_FP64_code : idxunop = GrB_VALUEEQ_FP64 ; break ;
case GB_FC32_code : idxunop = GxB_VALUEEQ_FC32 ; break ;
case GB_FC64_code : idxunop = GxB_VALUEEQ_FC64 ; break ;
default:;
}
break ;
case GB_GT_ZERO_selop_code : Thunk = NULL ;
case GB_GT_THUNK_selop_code :
switch (acode)
{
case GB_BOOL_code : idxunop = GrB_VALUEGT_BOOL ; break ;
case GB_INT8_code : idxunop = GrB_VALUEGT_INT8 ; break ;
case GB_INT16_code : idxunop = GrB_VALUEGT_INT16 ; break ;
case GB_INT32_code : idxunop = GrB_VALUEGT_INT32 ; break ;
case GB_INT64_code : idxunop = GrB_VALUEGT_INT64 ; break ;
case GB_UINT8_code : idxunop = GrB_VALUEGT_UINT8 ; break ;
case GB_UINT16_code : idxunop = GrB_VALUEGT_UINT16 ; break ;
case GB_UINT32_code : idxunop = GrB_VALUEGT_UINT32 ; break ;
case GB_UINT64_code : idxunop = GrB_VALUEGT_UINT64 ; break ;
case GB_FP32_code : idxunop = GrB_VALUEGT_FP32 ; break ;
case GB_FP64_code : idxunop = GrB_VALUEGT_FP64 ; break ;
default:;
}
break ;
case GB_GE_ZERO_selop_code : Thunk = NULL ;
case GB_GE_THUNK_selop_code :
switch (acode)
{
case GB_BOOL_code : idxunop = GrB_VALUEGE_BOOL ; break ;
case GB_INT8_code : idxunop = GrB_VALUEGE_INT8 ; break ;
case GB_INT16_code : idxunop = GrB_VALUEGE_INT16 ; break ;
case GB_INT32_code : idxunop = GrB_VALUEGE_INT32 ; break ;
case GB_INT64_code : idxunop = GrB_VALUEGE_INT64 ; break ;
case GB_UINT8_code : idxunop = GrB_VALUEGE_UINT8 ; break ;
case GB_UINT16_code : idxunop = GrB_VALUEGE_UINT16 ; break ;
case GB_UINT32_code : idxunop = GrB_VALUEGE_UINT32 ; break ;
case GB_UINT64_code : idxunop = GrB_VALUEGE_UINT64 ; break ;
case GB_FP32_code : idxunop = GrB_VALUEGE_FP32 ; break ;
case GB_FP64_code : idxunop = GrB_VALUEGE_FP64 ; break ;
default:;
}
break ;
case GB_LT_ZERO_selop_code : Thunk = NULL ;
case GB_LT_THUNK_selop_code :
switch (acode)
{
case GB_BOOL_code : idxunop = GrB_VALUELT_BOOL ; break ;
case GB_INT8_code : idxunop = GrB_VALUELT_INT8 ; break ;
case GB_INT16_code : idxunop = GrB_VALUELT_INT16 ; break ;
case GB_INT32_code : idxunop = GrB_VALUELT_INT32 ; break ;
case GB_INT64_code : idxunop = GrB_VALUELT_INT64 ; break ;
case GB_UINT8_code : idxunop = GrB_VALUELT_UINT8 ; break ;
case GB_UINT16_code : idxunop = GrB_VALUELT_UINT16 ; break ;
case GB_UINT32_code : idxunop = GrB_VALUELT_UINT32 ; break ;
case GB_UINT64_code : idxunop = GrB_VALUELT_UINT64 ; break ;
case GB_FP32_code : idxunop = GrB_VALUELT_FP32 ; break ;
case GB_FP64_code : idxunop = GrB_VALUELT_FP64 ; break ;
default:;
}
break ;
case GB_LE_ZERO_selop_code : Thunk = NULL ;
case GB_LE_THUNK_selop_code :
switch (acode)
{
case GB_BOOL_code : idxunop = GrB_VALUELE_BOOL ; break ;
case GB_INT8_code : idxunop = GrB_VALUELE_INT8 ; break ;
case GB_INT16_code : idxunop = GrB_VALUELE_INT16 ; break ;
case GB_INT32_code : idxunop = GrB_VALUELE_INT32 ; break ;
case GB_INT64_code : idxunop = GrB_VALUELE_INT64 ; break ;
case GB_UINT8_code : idxunop = GrB_VALUELE_UINT8 ; break ;
case GB_UINT16_code : idxunop = GrB_VALUELE_UINT16 ; break ;
case GB_UINT32_code : idxunop = GrB_VALUELE_UINT32 ; break ;
case GB_UINT64_code : idxunop = GrB_VALUELE_UINT64 ; break ;
case GB_FP32_code : idxunop = GrB_VALUELE_FP32 ; break ;
case GB_FP64_code : idxunop = GrB_VALUELE_FP64 ; break ;
default:;
}
break ;
default: ;
}
if (idxunop == NULL)
{
// user-defined GxB_SelectOps and the NONZOMBIE opcode are not supported
return (GrB_NOT_IMPLEMENTED) ;
}
//--------------------------------------------------------------------------
// create the new Thunk
//--------------------------------------------------------------------------
// finish any pending work on the Thunk
GB_MATRIX_WAIT (Thunk) ;
// allocate the NewThunk as a full scalar
GB_OK (GB_new_bix ((GrB_Matrix *) &NewThunk, idxunop->ytype, 1, 1,
GB_ph_calloc, true, GxB_FULL, false, GB_Global_hyper_switch_get ( ),
1, 1, true, false, false, false, false)) ;
// NewThunk = 0
memset (NewThunk->x, 0, idxunop->ytype->size) ;
NewThunk->magic = GB_MAGIC ;
// copy/typecast Thunk into NewThunk
if (Thunk != NULL && GB_nnz ((GrB_Matrix) Thunk) == 1)
{
if (!GB_Type_compatible (idxunop->ytype, Thunk->type))
{
GB_FREE_ALL ;
return (GrB_DOMAIN_MISMATCH) ;
}
GB_cast_matrix ((GrB_Matrix) NewThunk, (GrB_Matrix) Thunk) ;
}
ASSERT_MATRIX_OK ((GrB_Matrix) NewThunk, "new thunk", GB0) ;
//--------------------------------------------------------------------------
// return result
//--------------------------------------------------------------------------
(*idxunop_handle) = idxunop ;
(*NewThunk_handle) = NewThunk ;
return (GrB_SUCCESS) ;
}
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