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authortv <tv@krebsco.de>2019-02-07 18:42:36 +0100
committertv <tv@krebsco.de>2019-02-07 18:54:59 +0100
commitfb5636483871fbafe9b286b377c339c8ddf8b4f8 (patch)
tree5016d6b38bff4b13856828ee385aaf7498d8e344 /src/Control/Monad
initial commitv1.0.0-rc1
Diffstat (limited to 'src/Control/Monad')
-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
new file mode 100644
index 0000000..d91b12c
--- /dev/null
+++ 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)