From: Ted Kremenek <kremenek@apple.com>
Date: Thu, 15 Apr 2010 01:14:12 +0000 (+0000)
Subject: Teach ASTVector::append() about the case where 'NumInputs' is 0.  This hopefully... 
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=b13c170a280673f4cf4d7d11ec818392407254d4;p=clang

Teach ASTVector::append() about the case where 'NumInputs' is 0.  This hopefully fixes
a crash in InitListExpr's ctor.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101328 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/clang/AST/ASTVector.h b/include/clang/AST/ASTVector.h
index a23ce87a91..217dfade52 100644
--- a/include/clang/AST/ASTVector.h
+++ b/include/clang/AST/ASTVector.h
@@ -176,6 +176,10 @@ public:
   template<typename in_iter>
   void append(ASTContext &C, in_iter in_start, in_iter in_end) {
     size_type NumInputs = std::distance(in_start, in_end);
+
+    if (NumInputs == 0)
+      return;
+
     // Grow allocated space if needed.
     if (NumInputs > size_type(this->capacity_ptr()-this->end()))
       this->grow(C, this->size()+NumInputs);