diff options
Diffstat (limited to 'Graphics')
| -rw-r--r-- | Graphics/Glyph/Util.hs | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Graphics/Glyph/Util.hs b/Graphics/Glyph/Util.hs index 78fd053..790b9f6 100644 --- a/Graphics/Glyph/Util.hs +++ b/Graphics/Glyph/Util.hs @@ -310,3 +310,6 @@ for = flip map distribMaybe :: Maybe (a,b) -> (Maybe a, Maybe b) distribMaybe Nothing = (Nothing,Nothing) distribMaybe (Just (a,b)) = (Just a, Just b) + +whenM :: IO Bool -> IO () -> IO () +whenM b = (>>=) b . flip when |