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
123
124
125
126
127
128
129
130
|
// Copyright ©2016 The Gonum Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package testlapack
import (
"fmt"
"testing"
"gonum.org/v1/gonum/blas/blas64"
)
type Dlaswper interface {
Dlaswp(n int, a []float64, lda, k1, k2 int, ipiv []int, incX int)
}
func DlaswpTest(t *testing.T, impl Dlaswper) {
for ti, test := range []struct {
k1, k2 int
ipiv []int
incX int
want blas64.General
}{
{
k1: 0,
k2: 2,
ipiv: []int{0, 1, 2},
incX: 1,
want: blas64.General{
Rows: 4,
Cols: 3,
Stride: 3,
Data: []float64{
1, 2, 3,
4, 5, 6,
7, 8, 9,
10, 11, 12,
},
},
},
{
k1: 0,
k2: 2,
ipiv: []int{0, 1, 2},
incX: -1,
want: blas64.General{
Rows: 4,
Cols: 3,
Stride: 3,
Data: []float64{
1, 2, 3,
4, 5, 6,
7, 8, 9,
10, 11, 12,
},
},
},
{
k1: 0,
k2: 2,
ipiv: []int{1, 2, 3},
incX: 1,
want: blas64.General{
Rows: 5,
Cols: 3,
Stride: 3,
Data: []float64{
4, 5, 6,
7, 8, 9,
10, 11, 12,
1, 2, 3,
13, 14, 15,
},
},
},
{
k1: 0,
k2: 2,
ipiv: []int{1, 2, 3},
incX: -1,
want: blas64.General{
Rows: 5,
Cols: 3,
Stride: 3,
Data: []float64{
10, 11, 12,
1, 2, 3,
4, 5, 6,
7, 8, 9,
13, 14, 15,
},
},
},
} {
m := test.want.Rows
n := test.want.Cols
k1 := test.k1
k2 := test.k2
if len(test.ipiv) != k2+1 {
panic("bad length of ipiv")
}
incX := test.incX
for _, extra := range []int{0, 11} {
a := zeros(m, n, n+extra)
c := 1
for i := 0; i < m; i++ {
for j := 0; j < n; j++ {
a.Data[i*a.Stride+j] = float64(c)
c++
}
}
ipiv := make([]int, len(test.ipiv))
copy(ipiv, test.ipiv)
impl.Dlaswp(n, a.Data, a.Stride, k1, k2, ipiv, incX)
prefix := fmt.Sprintf("Case %v (m=%v,n=%v,k1=%v,k2=%v,extra=%v)", ti, m, n, k1, k2, extra)
if !generalOutsideAllNaN(a) {
t.Errorf("%v: out-of-range write to A", prefix)
}
if !equalApproxGeneral(a, test.want, 0) {
t.Errorf("%v: unexpected A\n%v\n%v", prefix, a, test.want)
}
}
}
}
|
