Function safeInc

cachelib/navy/block_cache/SparseMapIndex.cpp:29–34

increase val if no overflow, otherwise do nothing

namespace {
// increase val if no overflow, otherwise do nothing
uint8_t safeInc(uint8_t val) {
  if (val < std::numeric_limits<uint8_t>::max()) {
    return val + 1;
  }
  return val;
}
} // namespace

class SparseMapIndex::IteratorImpl final : public Index::Iterator::Impl {