summaryrefslogtreecommitdiff
path: root/testsuite/tests/rename/should_fail/rnfail017.hs
diff options
context:
space:
mode:
Diffstat (limited to 'testsuite/tests/rename/should_fail/rnfail017.hs')
-rw-r--r--testsuite/tests/rename/should_fail/rnfail017.hs17
1 files changed, 17 insertions, 0 deletions
diff --git a/testsuite/tests/rename/should_fail/rnfail017.hs b/testsuite/tests/rename/should_fail/rnfail017.hs
new file mode 100644
index 0000000000..327a9d6abd
--- /dev/null
+++ b/testsuite/tests/rename/should_fail/rnfail017.hs
@@ -0,0 +1,17 @@
+module ShouldFail where
+
+-- !!! Precedence of unary negation
+
+f1 x y = x + -y -- Fails
+f2 x y = x * -y -- Fails
+
+
+f3 x y = -x + y -- OK: means (-x) + y
+ -- since - is left associative
+
+f4 x y = - x*y -- OK: means -(x*y)
+ -- since - binds less tightly than *
+
+f5 x y = x >= -y -- OK means x >= (-y)
+
+