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-rw-r--r--libraries/base/tests/T10412.hs7
-rw-r--r--libraries/base/tests/T10412.stdout3
-rw-r--r--libraries/base/tests/all.T1
3 files changed, 11 insertions, 0 deletions
diff --git a/libraries/base/tests/T10412.hs b/libraries/base/tests/T10412.hs
new file mode 100644
index 0000000000..9657ef7d16
--- /dev/null
+++ b/libraries/base/tests/T10412.hs
@@ -0,0 +1,7 @@
+import Data.Char
+
+main :: IO ()
+main = do
+ print $ isMark '\768'
+ print $ isAlphaNum '\768'
+ print $ (isAlpha '\768', isNumber '\768')
diff --git a/libraries/base/tests/T10412.stdout b/libraries/base/tests/T10412.stdout
new file mode 100644
index 0000000000..b243ae6f1e
--- /dev/null
+++ b/libraries/base/tests/T10412.stdout
@@ -0,0 +1,3 @@
+True
+True
+(False,False)
diff --git a/libraries/base/tests/all.T b/libraries/base/tests/all.T
index 06c7350026..0db147ea1e 100644
--- a/libraries/base/tests/all.T
+++ b/libraries/base/tests/all.T
@@ -222,3 +222,4 @@ test('T3474',
only_ways(['normal'])],
compile_and_run, ['-O'])
test('T14425', normal, compile_and_run, [''])
+test('T10412', normal, compile_and_run, [''])