One of my pet peeves is having a embedded friendly pool that register its memeory block in some stack allcoated huge array. While doing shenanigans on the Cell processor i often wanted to have a pool pre-requesting 200 of the 256Kb of the main memory and lemme allocate in this while havign some hard error if i stomped over the limit instead of silently doing crap. Other feature I would like is having some way to say: here is some contiguous memory range, please use it as a pool. So i can have a pool i can feed the data bank afterward. On other side, I really wish the pool_allocator to be under heavy test scurtiny. I used it once and got some strange cannot reproduce bugs with it. My use case was using a pool of float/double to allocate a block for holding some temporary matrix resulting from a call of GEMM int he middle of a proto AST.