writeHeader(&buf)
	fmt.Fprintf(&buf, "package buildcfg\n")
	fmt.Fprintln(&buf)
	fmt.Fprintf(&buf, "import \"runtime\"\n")
	fmt.Fprintln(&buf)
	fmt.Fprintf(&buf, "const defaultGO386 = `%s`\n", go386)
	fmt.Fprintf(&buf, "const defaultGOAMD64 = `%s`\n", goamd64)
	fmt.Fprintf(&buf, "const defaultGOARM = `%s`\n", goarm)
	fmt.Fprintf(&buf, "const defaultGOARM64 = `%s`\n", goarm64)

			for _, x := range inputs {
				code := fmt.Sprintf("%s_to_%s(%s)", t1, t2, x)
				fmt.Fprintf(&prog, "\tv%d = %s\n", len(outputs), code)
				exprs = append(exprs, code)
				outputs = append(outputs, convert(x, t1, t2))
			}
		}
	}
	fmt.Fprintf(&prog, ")\n\n")
	fmt.Fprintf(&prog, "func main() {\n\tok := true\n")
	for i, out := range outputs {

		fmt.Fprintf(os.Stderr, "  \tmerges data from input directories dir1+dir2\n")
		fmt.Fprintf(os.Stderr, "  \tand emits percentage of statements covered\n\n")
	case funcMode:
		fmt.Fprintf(os.Stderr, "  go tool covdata func -i=dir1,dir2\n\n")
		fmt.Fprintf(os.Stderr, "  \treads coverage data files from dir1+dirs2\n")
		fmt.Fprintf(os.Stderr, "  \tand writes out coverage profile data for\n")
		fmt.Fprintf(os.Stderr, "  \teach function.\n")

		panic(err)
	}

	params := req.Form
	if params.Get("loc") != "" {
		fmt.Printf("Location: %s\r\n\r\n", params.Get("loc"))
		return
	}

	fmt.Printf("Content-Type: text/html\r\n")
	fmt.Printf("X-CGI-Pid: %d\r\n", os.Getpid())
	fmt.Printf("X-Test-Header: X-Test-Value\r\n")
	fmt.Printf("\r\n")

	if params.Get("writestderr") != "" {
		fmt.Fprintf(os.Stderr, "Hello, stderr!\n")
	}

	if params.Get("bigresponse") != "" {

	a, b, c := 1, 4, 16
	x := F(&a, &b, &c)
	fmt.Printf("x = %d\n", x)

	y := H("Hello", "World!")
	fmt.Println("len(y) =", len(y))
	fmt.Println("y =", y)
	z := H("Hello", "Pal!")
	fmt.Println("len(z) =", len(z))
	fmt.Println("z =", z)

	fmt.Println()

	y = K("Hello", "World!")
	fmt.Println("len(y) =", len(y))
	fmt.Println("y =", y)
	z = K("Hello", "Pal!")
	fmt.Println("len(z) =", len(z))
	fmt.Println("z =", z)

			return fmt.Sprintf("%s.UXTX<<%d", regname(r), ext)
		} else {
			return fmt.Sprintf("%s.UXTX", regname(r))
		}
	case REG_SXTB <= r && r < REG_SXTH:
		if ext != 0 {
			return fmt.Sprintf("%s.SXTB<<%d", regname(r), ext)
		} else {
			return fmt.Sprintf("%s.SXTB", regname(r))
		}
	case REG_SXTH <= r && r < REG_SXTW:
		if ext != 0 {
			return fmt.Sprintf("%s.SXTH<<%d", regname(r), ext)
		} else {

	var b strings.Builder
	b.WriteString(fmt.Sprintf("PROXY_PORT=%s\n", c.ProxyPort))
	b.WriteString(fmt.Sprintf("PROXY_INBOUND_CAPTURE_PORT=%s\n", c.InboundCapturePort))
	b.WriteString(fmt.Sprintf("PROXY_TUNNEL_PORT=%s\n", c.InboundTunnelPort))
	b.WriteString(fmt.Sprintf("PROXY_UID=%s\n", c.ProxyUID))
	b.WriteString(fmt.Sprintf("PROXY_GID=%s\n", c.ProxyGID))

	fmt.Fprintf(w, "_MaxSmallSize = %d\n", maxSmallSize)
	fmt.Fprintf(w, "smallSizeDiv = %d\n", smallSizeDiv)
	fmt.Fprintf(w, "smallSizeMax = %d\n", smallSizeMax)
	fmt.Fprintf(w, "largeSizeDiv = %d\n", largeSizeDiv)
	fmt.Fprintf(w, "_NumSizeClasses = %d\n", len(classes))
	fmt.Fprintf(w, "_PageShift = %d\n", pageShift)
	fmt.Fprintf(w, "maxObjsPerSpan = %d\n", maxObjsPerSpan(classes))
	fmt.Fprintln(w, ")")

func main() {
	w := new(bytes.Buffer)
	fmt.Fprintf(w, "// Code generated by gen/arithBoundaryGen.go. DO NOT EDIT.\n\n")
	fmt.Fprintf(w, "package main;\n")
	fmt.Fprintf(w, "import \"testing\"\n")

	for _, sz := range []int{64, 32, 16, 8} {
		fmt.Fprintf(w, "type utd%d struct {\n", sz)
		fmt.Fprintf(w, "  a,b uint%d\n", sz)
		fmt.Fprintf(w, "  add,sub,mul,div,mod uint%d\n", sz)
		fmt.Fprintf(w, "}\n")

	constantsPath := []string{
		fmt.Sprintf(DestinationHost, "test", 0, 0),
		fmt.Sprintf(MirrorHost, 0),
		fmt.Sprintf(VSGateway, 0),
		fmt.Sprintf(URISchemeMethodAuthorityRegexMatch, 0, 0, "test"),
		fmt.Sprintf(HeaderAndQueryParamsRegexMatch, 0, 0, "test", "test"),
		fmt.Sprintf(AllowOriginsRegexMatch, 0, 0),
		fmt.Sprintf(WorkloadSelector, "test"),
		fmt.Sprintf(PortInPorts, 0),
		fmt.Sprintf(FromRegistry, "test", 0),