1 files changed, 34 insertions, 0 deletions
diff --git a/test/Analysis/enum-cast-out-of-range.c b/test/Analysis/enum-cast-out-of-range.c
new file mode 100644
index 0000000000..03e1100c38
--- /dev/null
+++ b/test/Analysis/enum-cast-out-of-range.c
@@ -0,0 +1,34 @@
+// RUN: %clang_analyze_cc1 \
+// RUN:   -analyzer-checker=core,alpha.cplusplus.EnumCastOutOfRange \
+// RUN:   -verify %s
+
+enum En_t {
+  En_0 = -4,
+  En_1,
+  En_2 = 1,
+  En_3,
+  En_4 = 4
+};
+
+void unscopedUnspecifiedCStyle() {
+  enum En_t Below = (enum En_t)(-5);    // expected-warning {{not in the valid range}}
+  enum En_t NegVal1 = (enum En_t)(-4);  // OK.
+  enum En_t NegVal2 = (enum En_t)(-3);  // OK.
+  enum En_t InRange1 = (enum En_t)(-2); // expected-warning {{not in the valid range}}
+  enum En_t InRange2 = (enum En_t)(-1); // expected-warning {{not in the valid range}}
+  enum En_t InRange3 = (enum En_t)(0);  // expected-warning {{not in the valid range}}
+  enum En_t PosVal1 = (enum En_t)(1);   // OK.
+  enum En_t PosVal2 = (enum En_t)(2);   // OK.
+  enum En_t InRange4 = (enum En_t)(3);  // expected-warning {{not in the valid range}}
+  enum En_t PosVal3 = (enum En_t)(4);   // OK.
+  enum En_t Above = (enum En_t)(5);     // expected-warning {{not in the valid range}}
+}
+
+enum En_t unused;
+void unusedExpr() {
+  // Following line is not something that EnumCastOutOfRangeChecker should
+  // evaluate.  Checker should either ignore this line or process it without
+  // producing any warnings.  However, compilation will (and should) still
+  // generate a warning having nothing to do with this checker.
+  unused; // expected-warning {{expression result unused}}
+}