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-rw-r--r--src/Control/Monad/Extended.hs14
1 files changed, 14 insertions, 0 deletions
diff --git a/src/Control/Monad/Extended.hs b/src/Control/Monad/Extended.hs
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+++ b/src/Control/Monad/Extended.hs
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+module Control.Monad.Extended
+ ( module Control.Monad
+ , unlessM_
+ , untilM_
+ ) where
+
+import Control.Monad
+
+
+unlessM_ :: Monad m => m Bool -> m () -> m ()
+unlessM_ p f = p >>= flip unless f
+
+untilM_ :: Monad m => m Bool -> m a -> m ()
+untilM_ p f = unlessM_ p (f >> untilM_ p f)