diff options
Diffstat (limited to 'clang/lib/Basic/Diagnostic.cpp')
| -rw-r--r-- | clang/lib/Basic/Diagnostic.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/clang/lib/Basic/Diagnostic.cpp b/clang/lib/Basic/Diagnostic.cpp index d665e49126d..fbc73131165 100644 --- a/clang/lib/Basic/Diagnostic.cpp +++ b/clang/lib/Basic/Diagnostic.cpp @@ -230,6 +230,8 @@ Diagnostic::~Diagnostic() { void Diagnostic::pushMappings() { + // Avoids undefined behavior when the stack has to resize. + DiagMappingsStack.reserve(DiagMappingsStack.size() + 1); DiagMappingsStack.push_back(DiagMappingsStack.back()); } |
