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//------------------------------------------------------------------------------
// GB_mex_assign_alias_mask_scalar: C<C,struct> = scalar
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2022, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
#include "GB_mex.h"
#define USAGE "C = GB_mex_assign_alias_mask_scalar (C, scalar)"
#define FREE_ALL \
{ \
GrB_Matrix_free_(&C) ; \
GrB_Matrix_free_(&S) ; \
GB_mx_put_global (true) ; \
}
GrB_Matrix C = NULL ;
GrB_Matrix S = NULL ;
GrB_Scalar scalar = NULL ;
GrB_Info assign_mask_scalar (void) ;
GrB_Info assign_mask_scalar (void)
{
GrB_Info info ;
GrB_Index nrows, ncols ;
GrB_Matrix_nrows (&nrows, C) ;
GrB_Matrix_ncols (&ncols, C) ;
GrB_Type stype ;
GxB_Scalar_type (&stype, scalar) ;
// some descriptors use GrB_REPLACE, just to test this option.
// It has no effect on the result.
if (stype == GrB_BOOL)
{
bool y = *((bool *) (scalar->x)) ; // OK
info = GrB_Matrix_assign_BOOL_
(C, C, NULL, y, GrB_ALL, nrows, GrB_ALL, ncols, GrB_DESC_S) ;
}
else if (stype == GrB_INT8)
{
int8_t y = *((int8_t *) (scalar->x)) ; // OK
info = GrB_Matrix_assign_INT8_
(C, C, NULL, y, GrB_ALL, nrows, GrB_ALL, ncols, GrB_DESC_S) ;
}
else if (stype == GrB_INT16)
{
int16_t y = *((int16_t *) (scalar->x)) ; // OK
info = GrB_Matrix_assign_INT16_
(C, C, NULL, y, GrB_ALL, nrows, GrB_ALL, ncols, GrB_DESC_S) ;
}
else if (stype == GrB_INT32)
{
int32_t y = *((int32_t *) (scalar->x)) ; // OK
info = GrB_Matrix_assign_INT32_
(C, C, NULL, y, GrB_ALL, nrows, GrB_ALL, ncols, GrB_DESC_S) ;
}
else if (stype == GrB_INT64)
{
int64_t y = *((int64_t *) (scalar->x)) ; // OK
info = GrB_Matrix_assign_INT64_
(C, C, NULL, y, GrB_ALL, nrows, GrB_ALL, ncols, GrB_DESC_S) ;
}
else if (stype == GrB_UINT8)
{
uint8_t y = *((uint8_t *) (scalar->x)) ; // OK
info = GrB_Matrix_assign_UINT8_
(C, C, NULL, y, GrB_ALL, nrows, GrB_ALL, ncols, GrB_DESC_S) ;
}
else if (stype == GrB_UINT16)
{
uint16_t y = *((uint16_t *) (scalar->x)) ; // OK
info = GrB_Matrix_assign_UINT16_
(C, C, NULL, y, GrB_ALL, nrows, GrB_ALL, ncols, GrB_DESC_RS) ;
}
else if (stype == GrB_UINT32)
{
uint32_t y = *((uint32_t *) (scalar->x)) ; // OK // OK
info = GrB_Matrix_assign_UINT32_
(C, C, NULL, y, GrB_ALL, nrows, GrB_ALL, ncols, GrB_DESC_RS) ;
}
else if (stype == GrB_UINT64)
{
uint64_t y = *((uint64_t *) (scalar->x)) ; // OK
info = GrB_Matrix_assign_UINT64_
(C, C, NULL, y, GrB_ALL, nrows, GrB_ALL, ncols, GrB_DESC_RS) ;
}
else if (stype == GrB_FP32)
{
float y = *((float *) (scalar->x)) ; // OK
info = GrB_Matrix_assign_FP32_
(C, C, NULL, y, GrB_ALL, nrows, GrB_ALL, ncols, GrB_DESC_RS) ;
}
else if (stype == GrB_FP64)
{
double y = *((double *) (scalar->x)) ; // OK
info = GrB_Matrix_assign_FP64_
(C, C, NULL, y, GrB_ALL, nrows, GrB_ALL, ncols, GrB_DESC_S) ;
}
else if (stype == GxB_FC32)
{
GxB_FC32_t y = *((GxB_FC32_t *) (scalar->x)) ; // OK
info = GxB_Matrix_assign_FC32_
(C, C, NULL, y, GrB_ALL, nrows, GrB_ALL, ncols, GrB_DESC_S) ;
}
else if (stype == GxB_FC64)
{
GxB_FC64_t y = *((GxB_FC64_t *) (scalar->x)) ; // OK
info = GxB_Matrix_assign_FC64_
(C, C, NULL, y, GrB_ALL, nrows, GrB_ALL, ncols, GrB_DESC_RS) ;
}
else
{
mexErrMsgTxt ("unknown type") ;
}
return (info) ;
}
void mexFunction
(
int nargout,
mxArray *pargout [ ],
int nargin,
const mxArray *pargin [ ]
)
{
bool malloc_debug = GB_mx_get_global (true) ;
// check inputs
if (nargout > 1 || nargin != 2)
{
mexErrMsgTxt ("Usage: " USAGE) ;
}
// get C (make a deep copy)
#define GET_DEEP_COPY \
C = GB_mx_mxArray_to_Matrix (pargin [0], "C input", true, true) ; \
GxB_Matrix_Option_set (C, GxB_SPARSITY_CONTROL, C->sparsity_control) ;
#define FREE_DEEP_COPY \
GrB_Matrix_free_(&C) ;
GET_DEEP_COPY ;
if (C == NULL)
{
FREE_ALL ;
mexErrMsgTxt ("C failed") ;
}
// GxB_Matrix_fprint (C, "C", GxB_COMPLETE, NULL) ;
// get scalar (shallow copy)
S = GB_mx_mxArray_to_Matrix (pargin [1], "scalar input", false, true) ;
if (S == NULL || S->magic != GB_MAGIC)
{
FREE_ALL ;
mexErrMsgTxt ("scalar failed") ;
}
GrB_Index snrows, sncols, snvals ;
GrB_Matrix_nrows (&snrows, S) ;
GrB_Matrix_ncols (&sncols, S) ;
GrB_Matrix_nvals (&snvals, S) ;
GxB_Format_Value fmt ;
GxB_Matrix_Option_get_(S, GxB_FORMAT, &fmt) ;
if (snrows != 1 || sncols != 1 || snvals != 1 || fmt != GxB_BY_COL)
{
FREE_ALL ;
mexErrMsgTxt ("scalar failed") ;
}
scalar = (GrB_Scalar) S ;
// GrB_Info info = GxB_Scalar_fprint (scalar, "scalar", GxB_COMPLETE, NULL) ;
// if (info != GrB_SUCCESS)
// {
// FREE_ALL ;
// mexErrMsgTxt ("scalar failed") ;
// }
// C<C,struct> = scalar
METHOD (assign_mask_scalar ( )) ;
// GxB_Matrix_fprint (C, "C output", GxB_COMPLETE, NULL) ;
// return C as a struct and free the GraphBLAS C
pargout [0] = GB_mx_Matrix_to_mxArray (&C, "C output", true) ;
FREE_ALL ;
}
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