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//------------------------------------------------------------------------------
// gb_string_to_selectop: get an index_unop or selectop from a string
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2022, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
#include "gb_interface.h"
// GrB_IndexUnaryOp and GxB_SelectOp operators, with their equivalent aliases
void gb_string_to_selectop
(
// outputs: one of the outputs is non-NULL and the other NULL
GrB_IndexUnaryOp *idxunop, // GrB_IndexUnaryOp, if found
GxB_SelectOp *selop, // GxB_SelectOp if found
bool *thunk_required, // true if op requires a thunk scalar
bool *op_is_positional, // true if op is positional
// input/output:
int64_t *ithunk,
// inputs:
char *opstring, // string defining the operator
const GrB_Type atype // type of A, or NULL if not present
)
{
//--------------------------------------------------------------------------
// check inputs
//--------------------------------------------------------------------------
CHECK_ERROR (opstring == NULL || opstring [0] == '\0', "invalid selectop") ;
//--------------------------------------------------------------------------
// get the opstring and parse it
//--------------------------------------------------------------------------
int32_t position [2] ;
gb_find_dot (position, opstring) ;
char *op_name = opstring ;
char *op_typename = NULL ;
if (position [0] >= 0)
{
opstring [position [0]] = '\0' ;
op_typename = opstring + position [0] + 1 ;
}
//--------------------------------------------------------------------------
// get the operator type for VALUE* operators
//--------------------------------------------------------------------------
GrB_Type type ;
if (op_typename == NULL)
{
// no type in the opstring; select the type from A
type = atype ;
}
else
{
// type is explicitly present in the opstring
type = gb_string_to_type (op_typename) ;
}
// type may still be NULL, which is OK; GxB_SelectOps are untyped.
GB_Type_code typecode = (type == NULL) ? GB_ignore_code : type->code ;
//--------------------------------------------------------------------------
// convert the string to a GrB_IndexUnaryOp or GxB_SelectOp
//--------------------------------------------------------------------------
(*idxunop) = NULL ;
(*selop) = NULL ;
(*thunk_required) = true ;
(*op_is_positional) = false ;
if (MATCH (opstring, "tril"))
{
(*idxunop) = GrB_TRIL ;
(*op_is_positional) = true ;
}
else if (MATCH (opstring, "triu"))
{
(*idxunop) = GrB_TRIU ;
(*op_is_positional) = true ;
}
else if (MATCH (opstring, "diag"))
{
(*idxunop) = GrB_DIAG ;
(*op_is_positional) = true ;
}
else if (MATCH (opstring, "offdiag"))
{
(*idxunop) = GrB_OFFDIAG ;
(*op_is_positional) = true ;
}
else if (MATCH (opstring, "rowne"))
{
(*idxunop) = GrB_ROWINDEX_INT64 ;
(*ithunk) = - (*ithunk - 1) ;
(*op_is_positional) = true ;
}
else if (MATCH (opstring, "rowle"))
{
(*idxunop) = GrB_ROWLE ;
(*ithunk)-- ;
(*op_is_positional) = true ;
}
else if (MATCH (opstring, "rowgt"))
{
(*idxunop) = GrB_ROWGT ;
(*ithunk)-- ;
(*op_is_positional) = true ;
}
else if (MATCH (opstring, "colne"))
{
(*idxunop) = GrB_COLINDEX_INT64 ;
(*ithunk) = - (*ithunk - 1) ;
(*op_is_positional) = true ;
}
else if (MATCH (opstring, "colle"))
{
(*idxunop) = GrB_COLLE ;
(*ithunk)-- ;
(*op_is_positional) = true ;
}
else if (MATCH (opstring, "colgt"))
{
(*idxunop) = GrB_COLGT ;
(*ithunk)-- ;
(*op_is_positional) = true ;
}
else if (MATCH (opstring, "nonzero") || MATCH (opstring, "~=0"))
{
(*selop) = (GxB_NONZERO) ;
(*thunk_required) = false ;
}
else if (MATCH (opstring, "zero") || MATCH (opstring, "==0"))
{
(*selop) = (GxB_EQ_ZERO) ;
(*thunk_required) = false ;
}
else if (MATCH (opstring, "positive") || MATCH (opstring, ">0"))
{
(*selop) = (GxB_GT_ZERO) ;
(*thunk_required) = false ;
}
else if (MATCH (opstring, "nonnegative") || MATCH (opstring, ">=0"))
{
(*selop) = (GxB_GE_ZERO) ;
(*thunk_required) = false ;
}
else if (MATCH (opstring, "negative") || MATCH (opstring, "<0"))
{
(*selop) = (GxB_LT_ZERO) ;
(*thunk_required) = false ;
}
else if (MATCH (opstring, "nonpositive") || MATCH (opstring, "<=0"))
{
(*selop) = (GxB_LE_ZERO) ;
(*thunk_required) = false ;
}
else if (MATCH (opstring, "~="))
{
switch (typecode)
{
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 : (*selop ) = GxB_NE_THUNK ; break ;
}
}
else if (MATCH (opstring, "=="))
{
switch (typecode)
{
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 : (*selop ) = GxB_EQ_THUNK ; break ;
}
}
else if (MATCH (opstring, ">"))
{
switch (typecode)
{
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 : (*selop ) = GxB_GT_THUNK ; break ;
}
}
else if (MATCH (opstring, ">="))
{
switch (typecode)
{
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 : (*selop ) = GxB_GE_THUNK ; break ;
}
}
else if (MATCH (opstring, "<"))
{
switch (typecode)
{
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 : (*selop ) = GxB_LT_THUNK ; break ;
}
}
else if (MATCH (opstring, "<="))
{
switch (typecode)
{
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 : (*selop ) = GxB_LE_THUNK ; break ;
}
}
if ((*idxunop) == NULL && (*selop) == NULL)
{
ERROR2 ("idxunop/selectop unknown: %s\n", opstring) ;
}
}
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