dup("interface{~int | ~string; float64; m()}"),
	dup("interface{~T[int, string] | string}"),

	// generic types
	dup("x[T]"),
	dup("x[N | A | S]"),
	dup("x[N, A]"),

	// non-type expressions
	dup("(x)"),
	dup("x.f"),
	dup("a[i]"),

	dup("s[:]"),
	dup("s[i:]"),
	dup("s[:j]"),
	dup("s[i:j]"),
	dup("s[:j:k]"),
	dup("s[i:j:k]"),

	dup("x.(T)"),

	dup("x.([10]int)"),
	dup("x.([...]int)"),

	dup("func(x ...int) (u string)"),
	{"func(x int, y ...int) (u string)", "func(x int, y ...int) (u string)"},

	// interfaces
	dup("interface{}"),
	dup("interface{m()}"),
	dup(`interface{String() string; m(int) float32}`),
	dup("interface{int | float32 | complex128}"),
	dup("interface{int | ~float32 | ~complex128}"),
	dup("any"),
	dup("interface{comparable}"),
	// TODO(gri) adjust test for EvalCompositeTest

	// non-type expressions
	dup("(x)"),
	dup("x.f"),
	dup("a[i]"),

	dup("s[:]"),
	dup("s[i:]"),
	dup("s[:j]"),
	dup("s[i:j]"),
	dup("s[:j:k]"),
	dup("s[i:j:k]"),

	dup("x.(T)"),

	dup("x.([10]int)"),
	dup("x.([...]int)"),

	dup("x.(struct{})"),
	dup("x.(struct{x int; y, z float32; E})"),

	dup("x.(func())"),
	dup("x.(func(x int))"),
	dup("x.(func() int)"),

	dup("func(x ...int) (u string)"),
	{"func(x int, y ...int) (u string)", "func(x int, y ...int) (u string)"},

	// interfaces
	dup("interface{}"),
	dup("interface{m()}"),
	dup(`interface{String() string; m(int) float32}`),
	dup("interface{int | float32 | complex128}"),
	dup("interface{int | ~float32 | ~complex128}"),
	dup("any"),
	dup("interface{comparable}"),
	{"comparable", "interface{comparable}"},

	if got, want := common.X, 2; got != want {
		log.Fatalf("after loading plugin2, common.X=%d, want %d", got, want)
	}

	_, err = plugin.Open("plugin2-dup.so")
	if err == nil {
		log.Fatal(`plugin.Open("plugin2-dup.so"): duplicate open should have failed`)
	}
	if s := err.Error(); !strings.Contains(s, "already loaded") {
		log.Fatal(`plugin.Open("plugin2.so"): error does not mention "already loaded"`)
	}

	Shift4     []int
	Table1     []uint32
	Table2     []uint32
	Table3     []uint32
	Table4     []uint32
}

var funcs = template.FuncMap{
	"dup":     dup,
	"relabel": relabel,
	"rotate":  rotate,
	"idx":     idx,
	"seq":     seq,
}

func dup(count int, x []int) []int {
	var out []int
	for i := 0; i < count; i++ {
		out = append(out, x...)
	}
	return out
}

func relabel(s string) string {

	return CloseFunc(fd)
}

// dupCloseOnExecOld is the traditional way to dup an fd and
// set its O_CLOEXEC bit, using two system calls.
func dupCloseOnExecOld(fd int) (int, string, error) {
	syscall.ForkLock.RLock()
	defer syscall.ForkLock.RUnlock()
	newfd, err := syscall.Dup(fd)
	if err != nil {
		return -1, "dup", err
	}
	syscall.CloseOnExec(newfd)
	return newfd, "", nil
}

        nBestCost = settings.getAsInt(NBEST_COST, -1);
        nBestExamples = settings.get(NBEST_EXAMPLES);
    }

    private static String parse(String rule, Set<String> dup) {
        String[] values = CSVUtil.parse(rule);
        if (dup.add(values[0]) == false) {
            throw new IllegalArgumentException("Found duplicate term [" + values[0] + "] in user dictionary.");
        }
        return rule;
    }

	if _, ok := v.m.Load(key); !ok {
		if _, dup := v.m.LoadOrStore(key, av); !dup {
			v.addKey(key)
			return
		}
	}

	v.m.Store(key, av)
}

// Add adds delta to the *[Int] value stored under the given map key.
func (v *Map) Add(key string, delta int64) {
	i, ok := v.m.Load(key)
	if !ok {
		var dup bool
		i, dup = v.m.LoadOrStore(key, new(Int))
		if !dup {
			v.addKey(key)
		}
	}

	if _, dup := decompressors.LoadOrStore(method, dcomp); dup {
		panic("decompressor already registered")
	}
}

// RegisterCompressor registers custom compressors for a specified method ID.
// The common methods [Store] and [Deflate] are built in.
func RegisterCompressor(method uint16, comp Compressor) {
	if _, dup := compressors.LoadOrStore(method, comp); dup {
		panic("compressor already registered")