Function numSlabs

cachelib/allocator/memory/SlabAllocator.cpp:330–332

namespace {
unsigned int numSlabs(size_t memorySize) noexcept {
  return static_cast<unsigned int>(memorySize / sizeof(Slab));
}
unsigned int numSlabsForHeaders(size_t memorySize) noexcept {
  const size_t headerSpace = sizeof(SlabHeader) * numSlabs(memorySize);
  return static_cast<unsigned int>((headerSpace + sizeof(Slab) - 1) /