From: Richard Smith <richard-llvm@metafoo.co.uk>
Date: Fri, 28 Feb 2014 20:13:19 +0000 (+0000)
Subject: Tests for lexing of digit separators versus UCNs.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=d353a18fca89468898520e8df3e25852531e70b3;p=clang

Tests for lexing of digit separators versus UCNs.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@202534 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/test/Lexer/cxx1y_digit_separators.cpp b/test/Lexer/cxx1y_digit_separators.cpp
index df0c262461..dcfb6d093f 100644
--- a/test/Lexer/cxx1y_digit_separators.cpp
+++ b/test/Lexer/cxx1y_digit_separators.cpp
@@ -43,3 +43,23 @@ static_assert(__LINE__ == 123456, "");
 #define M(x, ...) __VA_ARGS__
 constexpr int x = { M(1'2,3'4) };
 static_assert(x == 34, "");
+
+namespace UCNs {
+  // UCNs can appear before digit separators but not after.
+  int a = 0\u1234'5; // expected-error {{invalid suffix '\u1234'5' on integer constant}}
+  int b = 0'\u12345; // '; // expected-error {{expected ';'}}
+  constexpr int c {M(0\u1234'0,0'1)};
+  constexpr int d {M(00'\u1234,0'1)};
+  static_assert(c == 1, "");
+  static_assert(d == 0, "");
+}
+
+namespace UTF8 {
+  // extended characters can appear before digit separators but not after.
+  int a = 0ሴ'5; // expected-error {{invalid suffix 'ሴ'5' on integer constant}}
+  int b = 0'ሴ5; // '; // expected-error {{expected ';'}}
+  constexpr int c {M(0ሴ'0,0'1)};
+  constexpr int d {M(00'ሴ,0'1)};
+  static_assert(c == 1, "");
+  static_assert(d == 0, "");
+}