move out c/cpp/py

cl/_testlibc/allocacstrs/in.go

@@ -0,0 +1,16 @@
+package main
+
+import "github.com/goplus/lib/c"
+
+func main() {
+	cstrs := c.AllocaCStrs([]string{"a", "b", "c"}, true)
+	n := 0
+	for {
+		cstr := *c.Advance(cstrs, n)
+		if cstr == nil {
+			break
+		}
+		c.Printf(c.Str("%s\n"), cstr)
+		n++
+	}
+}