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//------------------------------------------------------------------------------
// GxB_Matrix_pack_HyperCSC: pack a matrix in hypersparse CSC format
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2025, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
#include "import_export/GB_export.h"
GrB_Info GxB_Matrix_pack_HyperCSC // pack a hypersparse CSC matrix
(
GrB_Matrix A, // matrix to create (type, nrows, ncols unchanged)
uint64_t **Ap, // col "pointers", Ap_size >= (plen+1)*sizeof(int64_t)
uint64_t **Ah, // column indices, Ah_size >= plen*sizeof(int64_t)
// where plen = 1 if ncols = 1, or nvec otherwise.
uint64_t **Ai, // row indices, Ai_size >= nvals(A)*sizeof(int64_t)
void **Ax, // values, Ax_size >= nvals(A)*(type size)
// or Ax_size >= (type size), if iso is true
uint64_t Ap_size, // size of Ap in bytes
uint64_t Ah_size, // size of Ah in bytes
uint64_t Ai_size, // size of Ai in bytes
uint64_t Ax_size, // size of Ax in bytes
bool iso, // if true, A is iso
uint64_t nvec, // number of columns that appear in Ah
bool jumbled, // if true, indices in each column may be unsorted
const GrB_Descriptor desc
)
{
//--------------------------------------------------------------------------
// check inputs and get the descriptor
//--------------------------------------------------------------------------
GB_RETURN_IF_NULL (A) ;
GB_RETURN_IF_OUTPUT_IS_READONLY (A) ;
GB_WHERE_1 (A, "GxB_Matrix_pack_HyperCSC (A, &Ap, &Ah, &Ai, &Ax, Ap_size,"
" Ah_size, Ai_size, Ax_size, iso, nvec, jumbled, desc)") ;
GB_BURBLE_START ("GxB_Matrix_pack_HyperCSC") ;
GB_GET_DESCRIPTOR (info, desc, xx1, xx2, xx3, xx4, xx5, xx6, xx7) ;
GB_GET_DESCRIPTOR_IMPORT (desc, fast_import) ;
//--------------------------------------------------------------------------
// pack the matrix
//--------------------------------------------------------------------------
info = GB_import (true, &A, A->type, GB_NROWS (A), GB_NCOLS (A), false,
Ap, Ap_size, // Ap
Ah, Ah_size, // Ah
NULL, 0, // Ab
Ai, Ai_size, // Ai
Ax, Ax_size, // Ax
0, jumbled, nvec, // jumbled or not
GxB_HYPERSPARSE, true, // hypersparse by col
iso, fast_import, true, Werk) ;
GB_BURBLE_END ;
return (info) ;
}
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