From: Chris Lattner <sabre@nondot.org>
Date: Wed, 10 Oct 2007 20:59:57 +0000 (+0000)
Subject: avoid accessing off the end of identifiers.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=a31f030d5c2bca6567ecfc7fa9367aeb19de7037;p=clang

avoid accessing off the end of identifiers.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42841 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/Basic/IdentifierTable.cpp b/Basic/IdentifierTable.cpp
index 51abcd22b5..7c2681615f 100644
--- a/Basic/IdentifierTable.cpp
+++ b/Basic/IdentifierTable.cpp
@@ -157,6 +157,7 @@ tok::PPKeywordKind IdentifierInfo::getPPKeywordID() const {
     return memcmp(Name, #NAME, LEN) ? tok::pp_not_keyword : tok::pp_ ## NAME
     
   unsigned Len = getLength();
+  if (Len < 2) return tok::pp_not_keyword;
   const char *Name = getName();
   switch (HASH(Len, Name[0], Name[2])) {
   default: return tok::pp_not_keyword;