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//------------------------------------------------------------------------------
// GxB_Matrix_import_CSC: import 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_import_CSC // import a CSC matrix
(
GrB_Matrix *A, // handle of matrix to create
GrB_Type type, // type of matrix to create
GrB_Index nrows, // number of rows of the matrix
GrB_Index ncols, // number of columns of the matrix
GrB_Index **Ap, // column "pointers"
GrB_Index **Ai, // row indices
void **Ax, // values
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_import_CSC (&A, type, nrows, ncols, "
"&Ap, &Ai, &Ax, Ap_size, Ai_size, Ax_size, iso, "
"jumbled, desc)") ;
GB_BURBLE_START ("GxB_Matrix_import_CSC") ;
GB_GET_DESCRIPTOR (info, desc, xx1, xx2, xx3, xx4, xx5, xx6, xx7) ;
GB_GET_DESCRIPTOR_IMPORT (desc, fast_import) ;
//--------------------------------------------------------------------------
// import the matrix
//--------------------------------------------------------------------------
info = GB_import (false, A, type, nrows, ncols, 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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