diff options
Diffstat (limited to 'ch15/SafeHello.hs')
| -rw-r--r-- | ch15/SafeHello.hs | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/ch15/SafeHello.hs b/ch15/SafeHello.hs new file mode 100644 index 0000000..91a7ff1 --- /dev/null +++ b/ch15/SafeHello.hs @@ -0,0 +1,12 @@ +module SafeHello where
+
+import MonadHandle
+import System.IO (IOMode(..))
+
+{-- snippet safeHello --}
+safeHello :: MonadHandle h m => FilePath -> m ()
+safeHello path = do
+ h <- openFile path WriteMode
+ hPutStrLn h "hello world"
+ hClose h
+{-- /snippet safeHello --}
|