1 files changed, 35 insertions, 0 deletions
diff --git a/test/Lexer/constants.c b/test/Lexer/constants.c
new file mode 100644
index 0000000..fcb6de9
--- /dev/null
+++ b/test/Lexer/constants.c
@@ -0,0 +1,35 @@
+// RUN: clang-cc -fsyntax-only -verify -pedantic -trigraphs %s
+
+int x = 000000080;  // expected-error {{invalid digit}}
+
+int y = 0000\
+00080;             // expected-error {{invalid digit}}
+
+
+
+float X = 1.17549435e-38F;
+float Y = 08.123456;
+
+// PR2252
+#if -0x8000000000000000  // should not warn.
+#endif
+
+
+char c[] = {
+  'df',   // expected-warning {{multi-character character constant}}
+  '\t',
+  '\\
+t',
+  '??!',  // expected-warning {{trigraph converted to '|' character}}
+  'abcd'  // expected-warning {{multi-character character constant}}
+};
+
+
+#pragma clang diagnostic ignored "-Wmultichar"
+
+char d = 'df'; // no warning.
+char e = 'abcd';  // still warn: expected-warning {{multi-character character constant}}
+
+#pragma clang diagnostic ignored "-Wfour-char-constants"
+
+char f = 'abcd';  // ignored.