move out c/cpp/py

cl/_testlibgo/complex/in.go

@@ -0,0 +1,19 @@
+package main
+
+import (
+	"math/cmplx"
+)
+
+func f(c, z complex128) {
+	println("abs(3+4i):", cmplx.Abs(c))
+	println("real(3+4i):", real(z))
+	println("imag(3+4i):", imag(z))
+}
+
+func main() {
+	re := 3.0
+	im := 4.0
+	z := 3 + 4i
+	c := complex(re, im)
+	f(c, z)
+}