diff options
Diffstat (limited to 'monad/h21.hs')
| -rw-r--r-- | monad/h21.hs | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/monad/h21.hs b/monad/h21.hs new file mode 100644 index 0000000..c843dcb --- /dev/null +++ b/monad/h21.hs @@ -0,0 +1,3 @@ +(>>=) m f = join $ fmap f m +join x = x >>= id +fmap f x = x >>= (return . f) |