Bug 16008 – FreeList should implement deallocateAll, as SharedFreeList does

THis can be necessary. An example that was posted on SO ([1]), if one embeds a FreeList in an aggregate, it's very probable that the FreeList has to be cleared in the aggregate __ctor, which is not possible now. [1]: http://stackoverflow.com/questions/36719532/how-can-i-free-all-the-items-of-a-freelist

FreeList implements deallocateAll and appears to have already done so at the time this issue was created.

It does not. If you look carefully it only appears that it is implemented because of the DbI style. So if you make a FreeList with Mallocator you cant deallocate all. here is a test case to prevent any further confusion --- void main() {} struct TestCase { import std.experimental.allocator.mallocator : Mallocator; import std.experimental.allocator.building_blocks : FreeList; FreeList!(Mallocator, 16, 16) freeList; ~this() { freeList.deallocateAll; } } ---

FreeList implements deallocateAll iff the parent allocator implements it. There's no way for FreeList!Mallocator to do that since there's no way to deallocateAll for Mallocator. If you want to be able to call deallocateAll with a FreeList, use a different parent allocator that has that capability.

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