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
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
//------------------------------------------------------------------------------
// GB_mex_Col_extract: interface for w<mask> = accum (w,A(I,j))
//------------------------------------------------------------------------------
// SuiteSparse:GraphBLAS, Timothy A. Davis, (c) 2017-2022, All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
//------------------------------------------------------------------------------
#include "GB_mex.h"
#define USAGE "w = GB_mex_Col_extract (w, mask, accum, A, I, j, desc)"
#define FREE_ALL \
{ \
GrB_Vector_free_(&w) ; \
GrB_Vector_free_(&mask) ; \
GrB_Matrix_free_(&A) ; \
GrB_Descriptor_free_(&desc) ; \
GB_mx_put_global (true) ; \
}
void mexFunction
(
int nargout,
mxArray *pargout [ ],
int nargin,
const mxArray *pargin [ ]
)
{
bool malloc_debug = GB_mx_get_global (true) ;
GrB_Vector w = NULL ;
GrB_Vector mask = NULL ;
GrB_Matrix A = NULL ;
GrB_Descriptor desc = NULL ;
GrB_Index *I = NULL, ni = 0, I_range [3] ;
GrB_Index *J = NULL, nj = 0, J_range [3] ;
bool ignore ;
// check inputs
if (nargout > 1 || nargin < 6 || nargin > 7)
{
mexErrMsgTxt ("Usage: " USAGE) ;
}
// get w (make a deep copy)
#define GET_DEEP_COPY \
w = GB_mx_mxArray_to_Vector (pargin [0], "w input", true, true) ;
#define FREE_DEEP_COPY GrB_Vector_free_(&w) ;
GET_DEEP_COPY ;
if (w == NULL)
{
FREE_ALL ;
mexErrMsgTxt ("w failed") ;
}
// get mask (shallow copy)
mask = GB_mx_mxArray_to_Vector (pargin [1], "mask", false, false) ;
if (mask == NULL && !mxIsEmpty (pargin [1]))
{
FREE_ALL ;
mexErrMsgTxt ("mask failed") ;
}
// get A (shallow copy)
A = GB_mx_mxArray_to_Matrix (pargin [3], "A input", false, true) ;
if (A == NULL)
{
FREE_ALL ;
mexErrMsgTxt ("A failed") ;
}
// get accum, if present
bool user_complex = (Complex != GxB_FC64)
&& (w->type == Complex || A->type == Complex) ;
GrB_BinaryOp accum ;
if (!GB_mx_mxArray_to_BinaryOp (&accum, pargin [2], "accum",
w->type, user_complex))
{
FREE_ALL ;
mexErrMsgTxt ("accum failed") ;
}
// get I
if (!GB_mx_mxArray_to_indices (&I, pargin [4], &ni, I_range, &ignore))
{
FREE_ALL ;
mexErrMsgTxt ("I failed") ;
}
// get J
if (!GB_mx_mxArray_to_indices (&J, pargin [5], &nj, J_range, &ignore))
{
FREE_ALL ;
mexErrMsgTxt ("J failed") ;
}
if (nj != 1)
{
FREE_ALL ;
mexErrMsgTxt ("j must be a scalar") ;
}
GrB_Index j = J [0] ;
// get desc
if (!GB_mx_mxArray_to_Descriptor (&desc, PARGIN (6), "desc"))
{
FREE_ALL ;
mexErrMsgTxt ("desc failed") ;
}
// w<mask> = accum (w,A(I,j))
METHOD (GrB_Col_extract_(w, mask, accum, A, I, ni, j, desc)) ;
// return w as a struct and free the GraphBLAS C
pargout [0] = GB_mx_Vector_to_mxArray (&w, "w output", true) ;
FREE_ALL ;
}
|
