diff options
Diffstat (limited to 'libcxx/include/experimental/iterator')
| -rw-r--r-- | libcxx/include/experimental/iterator | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/libcxx/include/experimental/iterator b/libcxx/include/experimental/iterator index d92613845a66..565bb83903ac 100644 --- a/libcxx/include/experimental/iterator +++ b/libcxx/include/experimental/iterator @@ -127,6 +127,7 @@ _LIBCPP_POP_MACROS # if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20 # include <cstddef> # include <iosfwd> +# include <optional> # include <type_traits> # endif #endif // __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS) |