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//------------------------------------------------------------------------------
// GxB_Vector_unpack_Bitmap: unpack a bitmap vector
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2022, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
#include "GB_export.h"
#define GB_FREE_ALL ;
GrB_Info GxB_Vector_unpack_Bitmap // unpack a bitmap vector
(
GrB_Vector v, // vector to unpack (type and length unchanged)
int8_t **vb, // bitmap
void **vx, // values
GrB_Index *vb_size, // size of vb in bytes
GrB_Index *vx_size, // size of vx in bytes
bool *iso, // if true, v is iso
GrB_Index *nvals, // # of entries in bitmap
const GrB_Descriptor desc
)
{
//--------------------------------------------------------------------------
// check inputs
//--------------------------------------------------------------------------
GB_WHERE1 ("GxB_Vector_unpack_Bitmap (v, "
"&vb, &vx, &vb_size, &vx_size, &iso, &nvals, desc)") ;
GB_BURBLE_START ("GxB_Vector_unpack_Bitmap") ;
GB_RETURN_IF_NULL_OR_FAULTY (v) ;
GB_GET_DESCRIPTOR (info, desc, xx1, xx2, xx3, xx4, xx5, xx6, xx7) ;
//--------------------------------------------------------------------------
// finish any pending work
//--------------------------------------------------------------------------
GB_MATRIX_WAIT (v) ;
//--------------------------------------------------------------------------
// ensure the vector is bitmap CSC
//--------------------------------------------------------------------------
ASSERT (v->is_csc) ;
GB_OK (GB_convert_any_to_bitmap ((GrB_Matrix) v, Context)) ;
//--------------------------------------------------------------------------
// unpack the vector
//--------------------------------------------------------------------------
ASSERT (GB_IS_BITMAP (v)) ;
ASSERT (v->is_csc) ;
ASSERT (!GB_ZOMBIES (v)) ;
ASSERT (!GB_JUMBLED (v)) ;
ASSERT (!GB_PENDING (v)) ;
int sparsity ;
bool is_csc ;
GrB_Type type ;
GrB_Index vlen, vdim ;
info = GB_export (true, (GrB_Matrix *) (&v), &type, &vlen, &vdim, false,
NULL, NULL, // Ap
NULL, NULL, // Ah
vb, vb_size, // Ab
NULL, NULL, // Ai
vx, vx_size, // Ax
nvals, NULL, NULL, // nvals for bitmap
&sparsity, &is_csc, // bitmap by col
iso, Context) ;
if (info == GrB_SUCCESS)
{
ASSERT (sparsity == GxB_BITMAP) ;
ASSERT (is_csc) ;
ASSERT (vdim == 1) ;
}
GB_BURBLE_END ;
return (info) ;
}
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