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-rw-r--r--test/ken/cplx2.go122
1 files changed, 122 insertions, 0 deletions
diff --git a/test/ken/cplx2.go b/test/ken/cplx2.go
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+// run
+
+// 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.
+
+// Test arithmetic on complex numbers, including multiplication and division.
+
+package main
+
+const (
+ R = 5
+ I = 6i
+
+ C1 = R + I // ADD(5,6)
+ C2 = R - I // SUB(5,-6)
+ C3 = -(R + I) // ADD(5,6) NEG(-5,-6)
+ C4 = -(R - I) // SUB(5,-6) NEG(-5,6)
+
+ C5 = C1 + R // ADD(10,6)
+ C6 = C1 + I // ADD(5,12)
+
+ Ca = C5 + C6 // ADD(15,18)
+ Cb = C5 - C6 // SUB(5,-6)
+
+ Cc = C5 * C6 // MUL(-22,-150)
+ Cd = C5 / C6 // DIV(0.721893,-0.532544)
+ Ce = Cd * C6 // MUL(10,6) sb C5
+)
+
+func main() {
+
+ var r complex64 = 5 + 0i
+ if r != R {
+ println("opcode 1", r, R)
+ panic("fail")
+ }
+
+ var i complex64 = 6i
+ if i != I {
+ println("opcode 2", i, I)
+ panic("fail")
+ }
+
+ c1 := r + i
+ if c1 != C1 {
+ println("opcode x", c1, C1)
+ panic("fail")
+ }
+
+ c2 := r - i
+ if c2 != C2 {
+ println("opcode x", c2, C2)
+ panic("fail")
+ }
+
+ c3 := -(r + i)
+ if c3 != C3 {
+ println("opcode x", c3, C3)
+ panic("fail")
+ }
+
+ c4 := -(r - i)
+ if c4 != C4 {
+ println("opcode x", c4, C4)
+ panic("fail")
+ }
+
+ c5 := c1 + r
+ if c5 != C5 {
+ println("opcode x", c5, C5)
+ panic("fail")
+ }
+
+ c6 := c1 + i
+ if c6 != C6 {
+ println("opcode x", c6, C6)
+ panic("fail")
+ }
+
+ ca := c5 + c6
+ if ca != Ca {
+ println("opcode x", ca, Ca)
+ panic("fail")
+ }
+
+ cb := c5 - c6
+ if cb != Cb {
+ println("opcode x", cb, Cb)
+ panic("fail")
+ }
+
+ cc := c5 * c6
+ if cc != Cc {
+ println("opcode x", cc, Cc)
+ panic("fail")
+ }
+
+ cd := c5 / c6
+ if cd != Cd {
+ println("opcode x", cd, Cd)
+ panic("fail")
+ }
+
+ ce := cd * c6
+ if ce != Ce {
+ println("opcode x", ce, Ce)
+ panic("fail")
+ }
+
+ r32 := real(complex64(ce))
+ if r32 != float32(real(Ce)) {
+ println("real(complex64(ce))", r32, real(Ce))
+ panic("fail")
+ }
+
+ r64 := real(complex128(ce))
+ if r64 != real(Ce) {
+ println("real(complex128(ce))", r64, real(Ce))
+ panic("fail")
+ }
+}