complex divide: match C99 implementation
R=iant, ken2, r, r2, ken3
CC=golang-dev
https://golang.org/cl/1686044
diff --git a/test/cmplxdivide.go b/test/cmplxdivide.go
new file mode 100644
index 0000000..ac4730d6
--- /dev/null
+++ b/test/cmplxdivide.go
@@ -0,0 +1,43 @@
+// $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 (
+ "cmath"
+ "fmt"
+ "math"
+)
+
+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 cmath.IsInf(a) && cmath.IsInf(b):
+ return true
+ case cmath.IsNaN(a) && cmath.IsNaN(b):
+ return true
+ }
+ return a == b
+}
+
+func main() {
+ for _, t := range tests {
+ x := t.f/t.g
+ if !calike(x, t.out) {
+ fmt.Printf("%v/%v: expected %v error; got %v\n", t.f, t.g, t.out, x)
+ }
+ }
+}
