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| author | Jan Sucan <jan@jansucan.com> | 2025-07-30 10:29:40 +0200 |
|---|---|---|
| committer | Jan Sucan <jan@jansucan.com> | 2025-07-30 10:29:40 +0200 |
| commit | b801218e7627f98556ab7d1acbefbbf8daafd851 (patch) | |
| tree | 16d4aa53f26cad069514de1352baadf687ee28b2 /ch15/SafeHello.hs | |
| parent | 8463154bfa3112ba328d3645ff7fe25b25c433ae (diff) | |
15_a_1 and 15_a_2: Add solutions
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 --}
|