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-rw-r--r--testsuite/tests/lib/IO/hSeek004.hs8
1 files changed, 8 insertions, 0 deletions
diff --git a/testsuite/tests/lib/IO/hSeek004.hs b/testsuite/tests/lib/IO/hSeek004.hs
new file mode 100644
index 0000000000..9ad7c13e7f
--- /dev/null
+++ b/testsuite/tests/lib/IO/hSeek004.hs
@@ -0,0 +1,8 @@
+-- !!! can't seek an AppendMode handle
+
+import System.IO
+import System.IO.Error
+
+main = do
+ h <- openFile "hSeek004.out" AppendMode
+ try (hSeek h AbsoluteSeek 0) >>= print