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//------------------------------------------------------------------------------
// GxB_Matrix_export_FullC: export a full matrix, held by column
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2025, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
#include "import_export/GB_export.h"
#define GB_FREE_ALL ;
GrB_Info GxB_Matrix_export_FullC // export and free a full matrix, by column
(
GrB_Matrix *A, // handle of matrix to export and free
GrB_Type *type, // type of matrix exported
uint64_t *nrows, // number of rows of the matrix
uint64_t *ncols, // number of columns of the matrix
void **Ax, // values
uint64_t *Ax_size, // size of Ax in bytes
bool *iso, // if true, A is iso
const GrB_Descriptor desc
)
{
//--------------------------------------------------------------------------
// check inputs and get the descriptor
//--------------------------------------------------------------------------
GB_RETURN_IF_NULL (A) ;
GB_RETURN_IF_NULL (*A) ;
GB_WHERE_1 (*A, "GxB_Matrix_export_FullC (&A, &type, &nrows, &ncols, "
"&Ax, &Ax_size, &iso, desc)") ;
GB_GET_DESCRIPTOR (info, desc, xx1, xx2, xx3, xx4, xx5, xx6, xx7) ;
//--------------------------------------------------------------------------
// finish any pending work
//--------------------------------------------------------------------------
GB_MATRIX_WAIT (*A) ;
if (!GB_is_dense (*A))
{
// A must be dense or full
return (GrB_INVALID_VALUE) ;
}
//--------------------------------------------------------------------------
// ensure the matrix is full by-col
//--------------------------------------------------------------------------
// ensure the matrix is in by-col format
if (!((*A)->is_csc))
{
// A = A', done in-place, to put A in by-col format
GB_OK (GB_transpose_in_place (*A, true, Werk)) ;
GB_MATRIX_WAIT (*A) ;
}
GB_convert_any_to_full (*A) ;
//--------------------------------------------------------------------------
// export the matrix
//--------------------------------------------------------------------------
ASSERT (GB_IS_FULL (*A)) ;
ASSERT ((*A)->is_csc) ;
ASSERT (!GB_ZOMBIES (*A)) ;
ASSERT (!GB_JUMBLED (*A)) ;
ASSERT (!GB_PENDING (*A)) ;
int sparsity ;
bool is_csc ;
info = GB_export (false, A, type, nrows, ncols, false,
NULL, NULL, // Ap
NULL, NULL, // Ah
NULL, NULL, // Ab
NULL, NULL, // Ai
Ax, Ax_size, // Ax
NULL, NULL, NULL,
&sparsity, &is_csc, // full by col
iso, Werk) ;
if (info == GrB_SUCCESS)
{
ASSERT (sparsity == GxB_FULL) ;
ASSERT (is_csc) ;
}
return (info) ;
}
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