/**
     * Merges two characters, handling voiced and semi-voiced sound marks.
     * @param c1 The first character.
     * @param c2 The second character.
     * @return The merged character.
     */
    public static char mergeChar(final char c1, final char c2) {
        if (c2 == 'ﾞ') {
            if ("ｶｷｸｹｺｻｼｽｾｿﾀﾁﾂﾃﾄﾊﾋﾌﾍﾎ".indexOf(c1) >= 0) {
                switch (c1) {
                case 'ｶ':

a select with only <code>nil</code> channels and no default case blocks forever.
</p>

<pre>
var a []int
var c, c1, c2, c3, c4 chan int
var i1, i2 int
select {
case i1 = &lt;-c1:
	print("received ", i1, " from c1\n")
case c2 &lt;- i2:
	print("sent ", i2, " to c2\n")
case i3, ok := (&lt;-c3):  // same as: i3, ok := &lt;-c3
	if ok {
		print("received ", i3, " from c3\n")
	} else {

i++ { d := bLimbs[i] c1 := addMulVVW1024(&T[i], &aLimbs[0], d) Y := T[i] * m.m0inv c2 := addMulVVW1024(&T[i], &mLimbs[0], Y) T[n+i], c = bits.Add(c1, c2, c) } copy(x.reset(n).limbs, T[n:]) x.maybeSubtractModulus(choice(c), m) case 1536 / _W: const n = 1536 / _W // compiler hint T := make([]uint, n*2) var c uint for i := 0; i < n; i++ { d := bLimbs[i] c1 := addMulVVW1536(&T[i], &aLimbs[0], d) Y := T[i] * m.m0inv c2 := addMulVVW1536(&T[i], &mLimbs[0], Y) T[n+i], c = bits.Add(c1, c2, c) } copy(x.reset(n).limbs,...