mirror of
https://github.com/golang/go
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123 lines
1.9 KiB
Go
123 lines
1.9 KiB
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 arithmetic on complex numbers, including multiplication and division.
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package main
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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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C2 = R - I // SUB(5,-6)
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C3 = -(R + I) // ADD(5,6) NEG(-5,-6)
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C4 = -(R - I) // SUB(5,-6) NEG(-5,6)
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C5 = C1 + R // ADD(10,6)
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C6 = C1 + I // ADD(5,12)
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Ca = C5 + C6 // ADD(15,18)
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Cb = C5 - C6 // SUB(5,-6)
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Cc = C5 * C6 // MUL(-22,-150)
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Cd = C5 / C6 // DIV(0.721893,-0.532544)
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Ce = Cd * C6 // MUL(10,6) sb C5
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)
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func main() {
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var r complex64 = 5 + 0i
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if r != R {
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println("opcode 1", r, R)
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panic("fail")
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}
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var i complex64 = 6i
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if i != I {
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println("opcode 2", i, I)
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panic("fail")
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}
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c1 := r + i
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if c1 != C1 {
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println("opcode x", c1, C1)
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panic("fail")
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}
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c2 := r - i
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if c2 != C2 {
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println("opcode x", c2, C2)
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panic("fail")
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}
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c3 := -(r + i)
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if c3 != C3 {
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println("opcode x", c3, C3)
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panic("fail")
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}
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c4 := -(r - i)
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if c4 != C4 {
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println("opcode x", c4, C4)
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panic("fail")
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}
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c5 := c1 + r
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if c5 != C5 {
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println("opcode x", c5, C5)
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panic("fail")
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}
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c6 := c1 + i
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if c6 != C6 {
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println("opcode x", c6, C6)
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panic("fail")
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}
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ca := c5 + c6
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if ca != Ca {
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println("opcode x", ca, Ca)
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panic("fail")
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}
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cb := c5 - c6
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if cb != Cb {
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println("opcode x", cb, Cb)
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panic("fail")
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}
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cc := c5 * c6
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if cc != Cc {
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println("opcode x", cc, Cc)
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panic("fail")
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}
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cd := c5 / c6
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if cd != Cd {
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println("opcode x", cd, Cd)
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panic("fail")
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}
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ce := cd * c6
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if ce != Ce {
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println("opcode x", ce, Ce)
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panic("fail")
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}
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r32 := real(complex64(ce))
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if r32 != float32(real(Ce)) {
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println("real(complex64(ce))", r32, real(Ce))
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panic("fail")
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}
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r64 := real(complex128(ce))
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if r64 != real(Ce) {
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println("real(complex128(ce))", r64, real(Ce))
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panic("fail")
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}
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}
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