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Diffstat (limited to 'src/option_key_fn.sml')
| -rw-r--r-- | src/option_key_fn.sml | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/option_key_fn.sml b/src/option_key_fn.sml index ba636d4e..27ba9138 100644 --- a/src/option_key_fn.sml +++ b/src/option_key_fn.sml @@ -1,4 +1,5 @@ -functor OptionKeyFn(K : ORD_KEY) : ORD_KEY = struct +functor OptionKeyFn(K : ORD_KEY) + : ORD_KEY where type ord_key = K.ord_key option = struct type ord_key = K.ord_key option |