diff options
Diffstat (limited to 'zen/stl_tools.h')
| -rwxr-xr-x | zen/stl_tools.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/zen/stl_tools.h b/zen/stl_tools.h index be9bf710..c3a9bf8f 100755 --- a/zen/stl_tools.h +++ b/zen/stl_tools.h @@ -12,6 +12,7 @@ #include <vector> #include <memory> #include <algorithm> +#include <optional> #include "string_traits.h" #include "build_info.h" |