Function memAlloc

src/backend/cpu/memory.cpp:57–63

template<typename T>
unique_ptr<T[], function<void(void *)>> memAlloc(const size_t &elements) {
    // TODO: make memAlloc aware of array shapes
    dim4 dims(elements);
    T *ptr = static_cast<T *>(
        memoryManager().alloc(false, 1, dims.get(), sizeof(T)));
    return unique_ptr<T[], function<void(void *)>>(ptr, memFree);
}

void *memAllocUser(const size_t &bytes) {
    dim4 dims(bytes);