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//------------------------------------------------------------------------------
// GxB_Vector_unpack_CSC: unpack a vector in CSC format
//------------------------------------------------------------------------------
// 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_CSC // unpack a CSC vector
(
GrB_Vector v, // vector to unpack (type and length unchanged)
GrB_Index **vi, // indices
void **vx, // values
GrB_Index *vi_size, // size of vi in bytes
GrB_Index *vx_size, // size of vx in bytes
bool *iso, // if true, v is iso
GrB_Index *nvals, // # of entries in vector
bool *jumbled, // if true, indices may be unsorted
const GrB_Descriptor desc
)
{
//--------------------------------------------------------------------------
// check inputs
//--------------------------------------------------------------------------
GB_WHERE1 ("GxB_Vector_unpack_CSC (v, "
"&vi, &vx, &vi_size, &vx_size, &iso, &nvals, &jumbled, desc)") ;
GB_BURBLE_START ("GxB_Vector_unpack_CSC") ;
GB_GET_DESCRIPTOR (info, desc, xx1, xx2, xx3, xx4, xx5, xx6, xx7) ;
GB_RETURN_IF_NULL_OR_FAULTY (v) ;
GB_RETURN_IF_NULL (nvals) ;
//--------------------------------------------------------------------------
// finish any pending work
//--------------------------------------------------------------------------
if (jumbled == NULL)
{
// the unpacked vector cannot be jumbled
GB_MATRIX_WAIT (v) ;
}
else
{
// the unpacked vector is allowed to be jumbled
GB_MATRIX_WAIT_IF_PENDING_OR_ZOMBIES (v) ;
}
//--------------------------------------------------------------------------
// ensure the vector is sparse
//--------------------------------------------------------------------------
GB_OK (GB_convert_any_to_sparse ((GrB_Matrix) v, Context)) ;
//--------------------------------------------------------------------------
// unpack the vector
//--------------------------------------------------------------------------
ASSERT (GB_IS_SPARSE (v)) ;
ASSERT (v->is_csc) ;
ASSERT (!GB_ZOMBIES (v)) ;
ASSERT (GB_IMPLIES (jumbled == NULL, !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, true,
NULL, NULL, // Ap
NULL, NULL, // Ah
NULL, NULL, // Ab
vi, vi_size, // Ai
vx, vx_size, // Ax
nvals, jumbled, NULL, // jumbled or not
&sparsity, &is_csc, // sparse by col
iso, Context) ;
if (info == GrB_SUCCESS)
{
ASSERT (sparsity == GxB_SPARSE) ;
ASSERT (is_csc) ;
ASSERT (vdim == 1) ;
}
GB_BURBLE_END ;
return (info) ;
}
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