Merge pull request #201 from Bytom/v0.1

[bytom/vapor.git] / vendor / gonum.org / v1 / gonum / blas / testblas / dznrm2.go

diff --git a/vendor/gonum.org/v1/gonum/blas/testblas/dznrm2.go b/vendor/gonum.org/v1/gonum/blas/testblas/dznrm2.go
deleted file mode 100644 (file)
index 8b0dcab..0000000
--- a/vendor/gonum.org/v1/gonum/blas/testblas/dznrm2.go
+++ /dev/null
@@ -1,137 +0,0 @@
-// 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"
-       "math"
-       "testing"
-
-       "golang.org/x/exp/rand"
-
-       "gonum.org/v1/gonum/floats"
-)
-
-type Dznrm2er interface {
-       Dznrm2(n int, x []complex128, incX int) float64
-       Dnrm2er
-}
-
-func Dznrm2Test(t *testing.T, impl Dznrm2er) {
-       tol := 1e-12
-       for tc, test := range []struct {
-               x    []complex128
-               want float64
-       }{
-               {
-                       x:    nil,
-                       want: 0,
-               },
-               {
-                       x:    []complex128{1 + 2i},
-                       want: 2.2360679774998,
-               },
-               {
-                       x:    []complex128{1 + 2i, 3 + 4i},
-                       want: 5.4772255750517,
-               },
-               {
-                       x:    []complex128{1 + 2i, 3 + 4i, 5 + 6i},
-                       want: 9.5393920141695,
-               },
-               {
-                       x:    []complex128{1 + 2i, 3 + 4i, 5 + 6i, 7 + 8i},
-                       want: 1.4282856857086e+01,
-               },
-               {
-                       x:    []complex128{1 + 2i, 3 + 4i, 5 + 6i, 7 + 8i, 9 + 10i},
-                       want: 1.9621416870349e+01,
-               },
-               {
-                       x:    []complex128{1 + 2i, 3 + 4i, 5 + 6i, 7 + 8i, 9 + 10i, 11 + 12i},
-                       want: 2.5495097567964e+01,
-               },
-               {
-                       x:    []complex128{1 + 2i, 3 + 4i, 5 + 6i, 7 + 8i, 9 + 10i, 11 + 12i, 13 + 14i},
-                       want: 3.1859064644148e+01,
-               },
-               {
-                       x:    []complex128{1 + 2i, 3 + 4i, 5 + 6i, 7 + 8i, 9 + 10i, 11 + 12i, 13 + 14i, 15 + 16i},
-                       want: 3.8678159211627e+01,
-               },
-               {
-                       x:    []complex128{1 + 2i, 3 + 4i, 5 + 6i, 7 + 8i, 9 + 10i, 11 + 12i, 13 + 14i, 15 + 16i, 17 + 18i},
-                       want: 4.5923850012820e+01,
-               },
-               {
-                       x:    []complex128{1 + 2i, 3 + 4i, 5 + 6i, 7 + 8i, 9 + 10i, 11 + 12i, 13 + 14i, 15 + 16i, 17 + 18i, 19 + 20i},
-                       want: 5.3572380943915e+01,
-               },
-               {
-                       x:    []complex128{1 + 2i, 3 + 4i, 5 + 6i, 7 + 8i, 9 + 10i, 11 + 12i, 13 + 14i, 15 + 16i, 17 + 18i, 19 + 20i, 21 + 22i},
-                       want: 6.1603571325046e+01,
-               },
-               {
-                       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},
-                       want: 70,
-               },
-       } {
-               n := len(test.x)
-               for _, incX := range []int{-10, -1, 1, 2, 9, 17} {
-                       x := makeZVector(test.x, incX)
-                       xCopy := make([]complex128, len(x))
-                       copy(xCopy, x)
-
-                       got := impl.Dznrm2(n, x, incX)
-
-                       prefix := fmt.Sprintf("Case %v (n=%v,incX=%v):", tc, n, incX)
-
-                       if !zsame(x, xCopy) {
-                               t.Errorf("%v: unexpected modification of x", prefix)
-                       }
-
-                       if incX < 0 {
-                               if got != 0 {
-                                       t.Errorf("%v: non-zero result when incX < 0. got %v", prefix, got)
-                               }
-                               continue
-                       }
-
-                       if !floats.EqualWithinAbsOrRel(test.want, got, tol, tol) {
-                               t.Errorf("%v: unexpected result. want %v, got %v", prefix, test.want, got)
-                       }
-               }
-       }
-
-       tol = 1e-14
-       rnd := rand.New(rand.NewSource(1))
-       for _, n := range []int{10, 50, 100} {
-               for _, incX := range []int{1, 2, 10} {
-                       re := make([]float64, n)
-                       for i := range re {
-                               re[i] = rnd.NormFloat64()
-                       }
-                       im := make([]float64, n)
-                       for i := range im {
-                               im[i] = rnd.NormFloat64()
-                       }
-                       want := math.Hypot(impl.Dnrm2(n, re, 1), impl.Dnrm2(n, im, 1))
-
-                       x := make([]complex128, (n-1)*incX+1)
-                       for i := range x {
-                               x[i] = znan
-                       }
-                       for i := range re {
-                               x[i*incX] = complex(re[i], im[i])
-                       }
-
-                       got := impl.Dznrm2(n, x, incX)
-
-                       if !floats.EqualWithinAbsOrRel(want, got, tol, tol) {
-                               t.Errorf("Case n=%v,incX=%v: unexpected result using Dnrm2. want %v, got %v", n, incX, want, got)
-                       }
-               }
-       }
-}