public override int GetMaxByteCount(int charCount)
{
if (charCount < 0)
throw new ArgumentOutOfRangeException("charCount",
Environment.GetResourceString("ArgumentOutOfRange_NeedNonNegNum"));
// Characters would be # of characters + 1 in case high surrogate is ? * max fallback
long byteCount = (long)charCount + 1;
if (EncoderFallback.MaxCharCount > 1)
byteCount *= EncoderFallback.MaxCharCount;
// 1 to 1 for most characters. Only surrogates with fallbacks have less.
if (byteCount > 0x7fffffff)
throw new ArgumentOutOfRangeException("charCount", Environment.GetResourceString("ArgumentOutOfRange_GetByteCountOverflow"));
return (int)byteCount;
}