Exception caused by calling a pure function repeatedly

[Dmitry Olshansky]

On 30.05.2012 20:40, Joseph Rushton Wakeling wrote:
> On Wednesday, 30 May 2012 at 06:06:10 UTC, Ali Çehreli wrote:
>> pure int[] solve(const bool[] redundancy, const ushort[LEN - 1][]
>> matrixes, const int[2^^LEN] bits, const int[] numbers)
>>
>> Fixed-length arrays are value types and are copied on the stack. Try
>> passing 'bits' as 'const ref' instead of just 'const'.
>
> This is specifically a fixed-length array issue?
>
> I ask because I have a function in code I've written,
>
> final pure nothrow const(CoDetResult) reputation(immutable size_t users,
> immutable size_t objects, const Rating!(UserID, ObjectID, Reputation)[]
> ratings)
>
> ... which repeatedly gets passed vectors of length 4,000,000 or more,
> and memory usage stays at a constant level.
>
> I didn't even realize it was possible to specify a fixed length for an
> array in a function declaration.

Fixed-sized array are value types. That is if you specify size in 
function declaration it becomes whole another type != that of dynamic 
array. However fixed array is easily "convertible" to dynamic slice via 
arr[] syntax.

-- 
Dmitry Olshansky