static inline VoicedSoundMarkType composedVoicedSoundMark(UChar character)
{
    ASSERT(isKanaLetter(character));

    switch (character) {
    case 0x304C: // HIRAGANA LETTER GA
    case 0x304E: // HIRAGANA LETTER GI
    case 0x3050: // HIRAGANA LETTER GU
    case 0x3052: // HIRAGANA LETTER GE
    case 0x3054: // HIRAGANA LETTER GO
    case 0x3056: // HIRAGANA LETTER ZA
    case 0x3058: // HIRAGANA LETTER ZI
    case 0x305A: // HIRAGANA LETTER ZU
    case 0x305C: // HIRAGANA LETTER ZE
    case 0x305E: // HIRAGANA LETTER ZO
    case 0x3060: // HIRAGANA LETTER DA
    case 0x3062: // HIRAGANA LETTER DI
    case 0x3065: // HIRAGANA LETTER DU
    case 0x3067: // HIRAGANA LETTER DE
    case 0x3069: // HIRAGANA LETTER DO
    case 0x3070: // HIRAGANA LETTER BA
    case 0x3073: // HIRAGANA LETTER BI
    case 0x3076: // HIRAGANA LETTER BU
    case 0x3079: // HIRAGANA LETTER BE
    case 0x307C: // HIRAGANA LETTER BO
    case 0x3094: // HIRAGANA LETTER VU
    case 0x30AC: // KATAKANA LETTER GA
    case 0x30AE: // KATAKANA LETTER GI
    case 0x30B0: // KATAKANA LETTER GU
    case 0x30B2: // KATAKANA LETTER GE
    case 0x30B4: // KATAKANA LETTER GO
    case 0x30B6: // KATAKANA LETTER ZA
    case 0x30B8: // KATAKANA LETTER ZI
    case 0x30BA: // KATAKANA LETTER ZU
    case 0x30BC: // KATAKANA LETTER ZE
    case 0x30BE: // KATAKANA LETTER ZO
    case 0x30C0: // KATAKANA LETTER DA
    case 0x30C2: // KATAKANA LETTER DI
    case 0x30C5: // KATAKANA LETTER DU
    case 0x30C7: // KATAKANA LETTER DE
    case 0x30C9: // KATAKANA LETTER DO
    case 0x30D0: // KATAKANA LETTER BA
    case 0x30D3: // KATAKANA LETTER BI
    case 0x30D6: // KATAKANA LETTER BU
    case 0x30D9: // KATAKANA LETTER BE
    case 0x30DC: // KATAKANA LETTER BO
    case 0x30F4: // KATAKANA LETTER VU
    case 0x30F7: // KATAKANA LETTER VA
    case 0x30F8: // KATAKANA LETTER VI
    case 0x30F9: // KATAKANA LETTER VE
    case 0x30FA: // KATAKANA LETTER VO
        return VoicedSoundMark;
    case 0x3071: // HIRAGANA LETTER PA
    case 0x3074: // HIRAGANA LETTER PI
    case 0x3077: // HIRAGANA LETTER PU
    case 0x307A: // HIRAGANA LETTER PE
    case 0x307D: // HIRAGANA LETTER PO
    case 0x30D1: // KATAKANA LETTER PA
    case 0x30D4: // KATAKANA LETTER PI
    case 0x30D7: // KATAKANA LETTER PU
    case 0x30DA: // KATAKANA LETTER PE
    case 0x30DD: // KATAKANA LETTER PO
        return SemiVoicedSoundMark;
    }
    return NoVoicedSoundMark;
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.