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
|
//------------------------------------------------------------------------------
// GxB_Matrix_export_BitmapC: export a bitmap 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_export_BitmapC // export and free a bitmap matrix, by col
(
GrB_Matrix *A, // handle of matrix to export and free
GrB_Type *type, // type of matrix exported
GrB_Index *nrows, // number of rows of the matrix
GrB_Index *ncols, // number of columns of the matrix
int8_t **Ab, // bitmap
void **Ax, // values
GrB_Index *Ab_size, // size of Ab in bytes
GrB_Index *Ax_size, // size of Ax in bytes
bool *iso, // if true, A is iso
GrB_Index *nvals, // # of entries in bitmap
const GrB_Descriptor desc
)
{
//--------------------------------------------------------------------------
// check inputs and get the descriptor
//--------------------------------------------------------------------------
GB_WHERE1 ("GxB_Matrix_export_BitmapC (&A, &type, &nrows, &ncols, "
"&Ab, &Ax, &Ab_size, &Ax_size, &iso, &nvals, desc)") ;
GB_BURBLE_START ("GxB_Matrix_export_BitmapC") ;
GB_RETURN_IF_NULL (A) ;
GB_RETURN_IF_NULL_OR_FAULTY (*A) ;
GB_GET_DESCRIPTOR (info, desc, xx1, xx2, xx3, xx4, xx5, xx6, xx7) ;
//--------------------------------------------------------------------------
// ensure the matrix is bitmap 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_OK (GB_convert_any_to_bitmap (*A, Context)) ;
//--------------------------------------------------------------------------
// export the matrix
//--------------------------------------------------------------------------
ASSERT (GB_IS_BITMAP (*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
Ab, Ab_size, // Ab
NULL, NULL, // Ai
Ax, Ax_size, // Ax
nvals, NULL, NULL, // nvals for bitmap
&sparsity, &is_csc, // bitmap by col
iso, Context) ;
if (info == GrB_SUCCESS)
{
ASSERT (sparsity == GxB_BITMAP) ;
ASSERT (is_csc) ;
}
GB_BURBLE_END ;
return (info) ;
}
|
