07-Nov-2013 17:30, Namespace пишет:
On Thursday, 7 November 2013 at 13:15:03 UTC, Sönke Ludwig wrote:
Am 07.11.2013 11:32, schrieb Namespace:
How about a stack allocator like this:
----
enum StackSize = 8192;
struct Stack {
static Stack it;
void[StackSize] _buffer = void;
size_t _bufUsage;
void[] take(size_t N) {
if ((this._bufUsage + N) <= StackSize) {
scope(exit) this._bufUsage += N;
return _buffer[this._bufUsage .. this._bufUsage + N];
}
return null;
}
void reset() {
this._bufUsage = 0;
}
}
----
Would that fit in std.allocator?
That's std.allocator.InSituRegion, just that is misses the reset()
method.
Nice! But I suggest two things:
1. Add a reset function for reusing the same storage
2. Should that:
https://github.com/andralex/phobos/blob/allocator/std/allocator.d#L2907
not be replaced with ubyte[size] _store = void; ?
Hm... Andrei has just been caught using internal pointers in structs :o)
--
Dmitry Olshansky
