don't dereference a null pointer

llvm-svn: 59533
2008-11-18 17:18:16 +00:00 · 2008-11-18 17:18:16 +00:00 · 2b387c487e
parent 1132313e71
commit 2b387c487e
1 changed files with 1 additions and 0 deletions
--- a/clang/include/clang/Basic/Diagnostic.h
+++ b/clang/include/clang/Basic/Diagnostic.h
@ -214,6 +214,7 @@ class DiagnosticInfo {
 public:
  DiagnosticInfo(Diagnostic *diagObj, FullSourceLoc loc, unsigned diagID) :
    DiagObj(diagObj), Loc(loc), DiagID(diagID) {
+    if (DiagObj == 0) return;
    assert(DiagObj->NumDiagArgs == -1 &&
           "Multiple diagnostics in flight at once!");
    DiagObj->NumDiagArgs = DiagObj->NumDiagRanges = 0;