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
|
// Copyright ©2017 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 testblas
import (
"fmt"
"testing"
"golang.org/x/exp/rand"
)
type Zcopyer interface {
Zcopy(n int, x []complex128, incX int, y []complex128, incY int)
}
func ZcopyTest(t *testing.T, impl Zcopyer) {
rnd := rand.New(rand.NewSource(1))
for n := 0; n <= 20; n++ {
for _, inc := range allPairs([]int{-7, -3, 1, 13}, []int{-11, -5, 1, 17}) {
incX := inc[0]
incY := inc[1]
aincX := abs(incX)
aincY := abs(incY)
var x []complex128
if n > 0 {
x = make([]complex128, (n-1)*aincX+1)
}
for i := range x {
x[i] = znan
}
for i := 0; i < n; i++ {
x[i*aincX] = complex(rnd.NormFloat64(), rnd.NormFloat64())
}
xCopy := make([]complex128, len(x))
copy(xCopy, x)
var y []complex128
if n > 0 {
y = make([]complex128, (n-1)*aincY+1)
}
for i := range y {
y[i] = znan
}
want := make([]complex128, len(y))
for i := range want {
want[i] = znan
}
if incX*incY > 0 {
for i := 0; i < n; i++ {
want[i*aincY] = x[i*aincX]
}
} else {
for i := 0; i < n; i++ {
want[i*aincY] = x[(n-1-i)*aincX]
}
}
impl.Zcopy(n, x, incX, y, incY)
prefix := fmt.Sprintf("Case n=%v,incX=%v,incY=%v:", n, incX, incY)
if !zsame(x, xCopy) {
t.Errorf("%v: unexpected modification of x", prefix)
}
if !zsame(y, want) {
t.Errorf("%v: unexpected y:\nwant %v\ngot %v", prefix, want, y)
}
}
}
}
|
