public static unsafe void AppendPrimitive(this StringBuilder stringBuilder, long value)
{
char *buffer = stackalloc char[20];
var count = CharConverter.LongToUnicode(value, buffer, 20, 0);
stringBuilder.Append(buffer, count);
}
public void WriteLong(long l)
{
this.Reserve(20);
this.usagebound += CharConverter.LongToUnicode(l, this.buffer, this.usagebound);
}
