+++ /dev/null
-// 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"
-)
-
-type Zdotuer interface {
- Zdotu(n int, x []complex128, incX int, y []complex128, incY int) complex128
-}
-
-func ZdotuTest(t *testing.T, impl Zdotuer) {
- for tc, test := range []struct {
- x, y []complex128
-
- want complex128 // Result when both increments have the same sign.
- wantRev complex128 // Result when the increments have opposite sign.
- }{
- {
- x: nil,
- y: nil,
- want: 0,
- wantRev: 0,
- },
- {
- x: []complex128{1 + 2i},
- y: []complex128{30 + 31i},
- want: -32 + 91i,
- wantRev: -32 + 91i,
- },
- {
- x: []complex128{1 + 2i, 3 + 4i},
- y: []complex128{30 + 31i, 33 + 34i},
- want: -69 + 325i,
- wantRev: -69 + 313i,
- },
- {
- x: []complex128{1 + 2i, 3 + 4i, 5 + 6i},
- y: []complex128{30 + 31i, 33 + 34i, 36 + 37i},
- want: -111 + 726i,
- wantRev: -111 + 678i,
- },
- {
- x: []complex128{1 + 2i, 3 + 4i, 5 + 6i, 7 + 8i},
- y: []complex128{30 + 31i, 33 + 34i, 36 + 37i, 39 + 40i},
- want: -158 + 1318i,
- wantRev: -158 + 1198i,
- },
- {
- x: []complex128{1 + 2i, 3 + 4i, 5 + 6i, 7 + 8i, 9 + 10i},
- y: []complex128{30 + 31i, 33 + 34i, 36 + 37i, 39 + 40i, 42 + 43i},
- want: -210 + 2125i,
- wantRev: -210 + 1885i,
- },
- {
- x: []complex128{1 + 2i, 3 + 4i, 5 + 6i, 7 + 8i, 9 + 10i, 11 + 12i},
- y: []complex128{30 + 31i, 33 + 34i, 36 + 37i, 39 + 40i, 42 + 43i, 45 + 46i},
- want: -267 + 3171i,
- wantRev: -267 + 2751i,
- },
- {
- x: []complex128{1 + 2i, 3 + 4i, 5 + 6i, 7 + 8i, 9 + 10i, 11 + 12i, 13 + 14i},
- y: []complex128{30 + 31i, 33 + 34i, 36 + 37i, 39 + 40i, 42 + 43i, 45 + 46i, 48 + 49i},
- want: -329 + 4480i,
- wantRev: -329 + 3808i,
- },
- {
- x: []complex128{1 + 2i, 3 + 4i, 5 + 6i, 7 + 8i, 9 + 10i, 11 + 12i, 13 + 14i, 15 + 16i},
- y: []complex128{30 + 31i, 33 + 34i, 36 + 37i, 39 + 40i, 42 + 43i, 45 + 46i, 48 + 49i, 51 + 52i},
- want: -396 + 6076i,
- wantRev: -396 + 5068i,
- },
- {
- x: []complex128{1 + 2i, 3 + 4i, 5 + 6i, 7 + 8i, 9 + 10i, 11 + 12i, 13 + 14i, 15 + 16i, 17 + 18i},
- y: []complex128{30 + 31i, 33 + 34i, 36 + 37i, 39 + 40i, 42 + 43i, 45 + 46i, 48 + 49i, 51 + 52i, 54 + 55i},
- want: -468 + 7983i,
- wantRev: -468 + 6543i,
- },
- {
- x: []complex128{1 + 2i, 3 + 4i, 5 + 6i, 7 + 8i, 9 + 10i, 11 + 12i, 13 + 14i, 15 + 16i, 17 + 18i, 19 + 20i},
- y: []complex128{30 + 31i, 33 + 34i, 36 + 37i, 39 + 40i, 42 + 43i, 45 + 46i, 48 + 49i, 51 + 52i, 54 + 55i, 57 + 58i},
- want: -545 + 10225i,
- wantRev: -545 + 8245i,
- },
- {
- x: []complex128{1 + 2i, 3 + 4i, 5 + 6i, 7 + 8i, 9 + 10i, 11 + 12i, 13 + 14i, 15 + 16i, 17 + 18i, 19 + 20i, 21 + 22i},
- y: []complex128{30 + 31i, 33 + 34i, 36 + 37i, 39 + 40i, 42 + 43i, 45 + 46i, 48 + 49i, 51 + 52i, 54 + 55i, 57 + 58i, 60 + 61i},
- want: -627 + 12826i,
- wantRev: -627 + 10186i,
- },
- {
- x: []complex128{1 + 2i, 3 + 4i, 5 + 6i, 7 + 8i, 9 + 10i, 11 + 12i, 13 + 14i, 15 + 16i, 17 + 18i, 19 + 20i, 21 + 22i, 23 + 24i},
- y: []complex128{30 + 31i, 33 + 34i, 36 + 37i, 39 + 40i, 42 + 43i, 45 + 46i, 48 + 49i, 51 + 52i, 54 + 55i, 57 + 58i, 60 + 61i, 63 + 64i},
- want: -714 + 15810i,
- wantRev: -714 + 12378i,
- },
- } {
- n := len(test.x)
- if len(test.y) != n {
- panic("bad test")
- }
- for _, inc := range allPairs([]int{-7, -3, 1, 13}, []int{-11, -5, 1, 17}) {
- incX := inc[0]
- incY := inc[1]
-
- x := makeZVector(test.x, incX)
- xCopy := make([]complex128, len(x))
- copy(xCopy, x)
-
- y := makeZVector(test.y, incY)
- yCopy := make([]complex128, len(y))
- copy(yCopy, y)
-
- want := test.want
- if incX*incY < 0 {
- want = test.wantRev
- }
-
- got := impl.Zdotu(n, x, incX, y, incY)
-
- prefix := fmt.Sprintf("Case %v (incX=%v,incY=%v):", tc, incX, incY)
-
- if !zsame(x, xCopy) {
- t.Errorf("%v: unexpected modification of x", prefix)
- }
- if !zsame(y, yCopy) {
- t.Errorf("%v: unexpected modification of y", prefix)
- }
-
- if got != want {
- t.Errorf("%v: unexpected result. want %v, got %v", prefix, want, got)
- }
- }
- }
-}
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