1. 346bd6a Placate unused variable warnings uncovered by improvements to clang's -Wunused-variable by Benjamin Kramer · 8 years ago
  2. a9e6596 Implement N4606 optional by Eric Fiselier · 9 years ago
  3. fc647db Revert Add <optional>. Will recommit with better commit message by Eric Fiselier · 9 years ago
  4. 6ee4001 Add <optional> header. by Eric Fiselier · 9 years ago