commit c934dfe950a14fe447aa14a7dae25d00ee87c8bb
author Dmitri Gribenko <gribozavr@gmail.com> Sat Jan 19 22:06:05 2013 +0000
committer Dmitri Gribenko <gribozavr@gmail.com> Sat Jan 19 22:06:05 2013 +0000
tree 9ab58a8d3dda6efeadaa8a96055348bbe1949c7b
parent 44a3ddbf7d2f46a002b5e85b240359c435509b4e

Use llvm::hexDigitValue in comment lexer


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172924 91177308-0d34-0410-b5e6-96231b3b80d8

lib/AST/CommentLexer.cpp

diff --git a/lib/AST/CommentLexer.cpp b/lib/AST/CommentLexer.cpp
index c5de09d..ff78e8a 100644
--- a/lib/AST/CommentLexer.cpp
+++ b/lib/AST/CommentLexer.cpp
@@ -1,6 +1,7 @@
 #include "clang/AST/CommentLexer.h"
 #include "clang/AST/CommentCommandTraits.h"
 #include "clang/Basic/ConvertUTF.h"
+#include "llvm/ADT/StringExtras.h"
 #include "llvm/ADT/StringSwitch.h"
 #include "llvm/Support/ErrorHandling.h"
 
@@ -65,12 +66,7 @@
     CodePoint *= 16;
     const char C = Name[i];
     assert(isHTMLHexCharacterReferenceCharacter(C));
-    if (C >= '0' && C <= '9')
-      CodePoint += Name[i] - '0';
-    else if (C >= 'a' && C <= 'f')
-      CodePoint += Name[i] - 'a' + 10;
-    else
-      CodePoint += Name[i] - 'A' + 10;
+    CodePoint += llvm::hexDigitValue(C);
   }
 
   char *Resolved = Allocator.Allocate<char>(UNI_MAX_UTF8_BYTES_PER_CODE_POINT);