1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
//------------------------------------------------------------------------------
// GxB_Matrix_unpack_FullC: unpack a full matrix, held by column
//------------------------------------------------------------------------------
// 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_Matrix_unpack_FullC // unpack a full matrix, by column
(
GrB_Matrix A, // matrix to unpack (type, nrows, ncols unchanged)
void **Ax, // values
GrB_Index *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_WHERE1 ("GxB_Matrix_unpack_FullC (A, "
"&Ax, &Ax_size, &iso, desc)") ;
GB_BURBLE_START ("GxB_Matrix_unpack_FullC") ;
GB_RETURN_IF_NULL_OR_FAULTY (A) ;
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
GBURBLE ("(transpose) ") ;
GB_OK (GB_transpose_in_place (A, true, Context)) ;
GB_MATRIX_WAIT (A) ;
}
GB_convert_any_to_full (A) ;
//--------------------------------------------------------------------------
// unpack 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 ;
GrB_Type type ;
GrB_Index vlen, vdim ;
info = GB_export (true, &A, &type, &vlen, &vdim, 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, Context) ;
if (info == GrB_SUCCESS)
{
ASSERT (sparsity == GxB_FULL) ;
ASSERT (is_csc) ;
}
GB_BURBLE_END ;
return (info) ;
}
|
