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https://github.com/golang/go
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55 lines
888 B
Go
55 lines
888 B
Go
// run
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// Copyright 2010 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Test composition, decomposition, and reflection on complex numbers.
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package main
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import "unsafe"
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import "reflect"
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const (
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R = 5
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I = 6i
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C1 = R + I // ADD(5,6)
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)
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func main() {
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c0 := C1
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c0 = (c0 + c0 + c0) / (c0 + c0 + 3i)
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r, i := real(c0), imag(c0)
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d := r - 1.292308
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if d < 0 {
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d = - d
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}
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if d > 1e-6 {
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println(r, "!= 1.292308")
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panic(0)
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}
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d = i + 0.1384615
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if d < 0 {
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d = - d
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}
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if d > 1e-6 {
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println(i, "!= -0.1384615")
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panic(0)
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}
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c := *(*complex128)(unsafe.Pointer(&c0))
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if c != c0 {
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println(c, "!=", c)
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panic(0)
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}
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var a interface{}
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switch c := reflect.ValueOf(a); c.Kind() {
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case reflect.Complex64, reflect.Complex128:
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v := c.Complex()
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_, _ = complex128(v), true
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}
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}
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