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//------------------------------------------------------------------------------
// GxB_Matrix_pack_CSC: pack a matrix in CSC format
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2022, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
#include "GB_export.h"
GrB_Info GxB_Matrix_pack_CSC // pack a CSC matrix
(
GrB_Matrix A, // matrix to create (type, nrows, ncols unchanged)
GrB_Index **Ap, // col "pointers", Ap_size >= (ncols+1)*sizeof(int64_t)
GrB_Index **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
GrB_Index Ap_size, // size of Ap in bytes
GrB_Index Ai_size, // size of Ai in bytes
GrB_Index Ax_size, // size of Ax in bytes
bool iso, // if true, A is iso
bool jumbled, // if true, indices in each column may be unsorted
const GrB_Descriptor desc
)
{
//--------------------------------------------------------------------------
// check inputs and get the descriptor
//--------------------------------------------------------------------------
GB_WHERE1 ("GxB_Matrix_pack_CSC (A, "
"&Ap, &Ai, &Ax, Ap_size, Ai_size, Ax_size, iso, "
"jumbled, desc)") ;
GB_BURBLE_START ("GxB_Matrix_pack_CSC") ;
GB_RETURN_IF_NULL_OR_FAULTY (A) ;
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
NULL, 0, // Ah
NULL, 0, // Ab
Ai, Ai_size, // Ai
Ax, Ax_size, // Ax
0, jumbled, 0, // jumbled or not
GxB_SPARSE, true, // sparse by col
iso, fast_import, true, Context) ;
GB_BURBLE_END ;
return (info) ;
}
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