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-rw-r--r--clang/lib/Lex/TokenConcatenation.cpp11
-rw-r--r--clang/test/Preprocessor/output_paste_avoid.cpp (renamed from clang/test/Preprocessor/output_paste_avoid.c)10
2 files changed, 14 insertions, 7 deletions
diff --git a/clang/lib/Lex/TokenConcatenation.cpp b/clang/lib/Lex/TokenConcatenation.cpp
index 30dc8f19d90..0a66bba91fc 100644
--- a/clang/lib/Lex/TokenConcatenation.cpp
+++ b/clang/lib/Lex/TokenConcatenation.cpp
@@ -12,9 +12,9 @@
//===----------------------------------------------------------------------===//
#include "clang/Lex/TokenConcatenation.h"
+#include "clang/Basic/CharInfo.h"
#include "clang/Lex/Preprocessor.h"
#include "llvm/Support/ErrorHandling.h"
-#include <cctype>
using namespace clang;
@@ -240,13 +240,12 @@ bool TokenConcatenation::AvoidConcat(const Token &PrevPrevTok,
return IsIdentifierStringPrefix(PrevTok);
case tok::numeric_constant:
- return isalnum(FirstChar) || Tok.is(tok::numeric_constant) ||
- FirstChar == '+' || FirstChar == '-' || FirstChar == '.' ||
- (PP.getLangOpts().CPlusPlus11 && FirstChar == '_');
+ return isPreprocessingNumberBody(FirstChar) ||
+ FirstChar == '+' || FirstChar == '-';
case tok::period: // ..., .*, .1234
return (FirstChar == '.' && PrevPrevTok.is(tok::period)) ||
- isdigit(FirstChar) ||
- (PP.getLangOpts().CPlusPlus && FirstChar == '*');
+ isDigit(FirstChar) ||
+ (PP.getLangOpts().CPlusPlus && FirstChar == '*');
case tok::amp: // &&
return FirstChar == '&';
case tok::plus: // ++
diff --git a/clang/test/Preprocessor/output_paste_avoid.c b/clang/test/Preprocessor/output_paste_avoid.cpp
index 6defd1272b7..689d966e867 100644
--- a/clang/test/Preprocessor/output_paste_avoid.c
+++ b/clang/test/Preprocessor/output_paste_avoid.cpp
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -E %s -o - | FileCheck -strict-whitespace %s
+// RUN: %clang_cc1 -E -std=c++11 %s -o - | FileCheck -strict-whitespace %s
#define y(a) ..a
@@ -37,3 +37,11 @@ F: >>equal
#define TYPEDEF(guid) typedef [uuid(guid)]
TYPEDEF(66504301-BE0F-101A-8BBB-00AA00300CAB) long OLE_COLOR;
// CHECK: typedef [uuid(66504301-BE0F-101A-8BBB-00AA00300CAB)] long OLE_COLOR;
+
+// Be careful with UD-suffixes.
+#define StrSuffix() "abc"_suffix
+#define IntSuffix() 123_suffix
+UD: StrSuffix()ident
+UD: IntSuffix()ident
+// CHECK: UD: "abc"_suffix ident
+// CHECK: UD: 123_suffix ident
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