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go/test/cmplxdivide.go
2011-11-08 15:43:02 -08:00

49 lines
888 B
Go

// $G $D/$F.go $D/cmplxdivide1.go && $L $D/$F.$A && ./$A.out
// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Driver for complex division table defined in cmplxdivide1.go
package main
import (
"fmt"
"math"
"math/cmplx"
)
type Test struct {
f, g complex128
out complex128
}
var nan = math.NaN()
var inf = math.Inf(1)
var negzero = math.Copysign(0, -1)
func calike(a, b complex128) bool {
switch {
case cmplx.IsInf(a) && cmplx.IsInf(b):
return true
case cmplx.IsNaN(a) && cmplx.IsNaN(b):
return true
}
return a == b
}
func main() {
bad := false
for _, t := range tests {
x := t.f / t.g
if !calike(x, t.out) {
if !bad {
fmt.Printf("BUG\n")
bad = true
}
fmt.Printf("%v/%v: expected %v error; got %v\n", t.f, t.g, t.out, x)
}
}
}