compute the required destination type for an enum, emitting various warnings.

TODO: update the types of the constants and the enum.
llvm-svn: 41532

1 files changed, 24 insertions, 0 deletions

diff --git a/clang/test/Sema/enum.c b/clang/test/Sema/enum.c
new file mode 100644
index 00000000000..1ba3977a785
--- /dev/null
+++ b/clang/test/Sema/enum.c
@@ -0,0 +1,24 @@
+// RUN: clang %s -parse-ast-check -pedantic
+
+enum e {A, 
+        B = 42LL << 32,        // expected-warning {{ISO C restricts enumerator values to range of 'int'}}
+      C = -4, D = 12456 };
+
+enum f { a = -2147483648, b = 2147483647 }; // ok.
+
+enum g {  // too negative
+   c = -2147483649,         // expected-warning {{ISO C restricts enumerator values to range of 'int'}}
+   d = 2147483647 };
+enum h { e = -2147483648, // too pos
+   f = 2147483648           // expected-warning {{ISO C restricts enumerator values to range of 'int'}}
+}; 
+
+// minll maxull
+enum x                      // expected-warning {{enumeration values exceed range of largest integer}}
+{ y = -9223372036854775807LL-1,  // expected-warning {{ISO C restricts enumerator values to range of 'int'}}
+z = 9223372036854775808ULL };    // expected-warning {{ISO C restricts enumerator values to range of 'int'}}
+
+int test() {
+  return sizeof(enum e) ;
+}
+