Array Appenders

[Frits van Bommel]

Andrei Alexandrescu wrote:
> Denis Koroskin wrote:
>> Well, actually I think that having an Appender object is an overkill. 
>> I never use, although I wrote a few implementations. Instead, I found 
>> the following method to be extemely handy, very fast and cover all my 
>> cases:
>>
>> void append(T)(T[] array, ref size_t index, T value)
>> {
>>    assert(array.length >= index);
>>    if (array.length == index) {
>>        array.length = array.length * 2;
>>    }
>>        array[index++] = value;
>> }
> 
> I'm pretty sure you meant to pass array by reference.

It also breaks when the array is empty.