diff options
| -rw-r--r-- | clang/lib/Basic/SourceManager.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/clang/lib/Basic/SourceManager.cpp b/clang/lib/Basic/SourceManager.cpp index 93e9a594e78..9d79551f911 100644 --- a/clang/lib/Basic/SourceManager.cpp +++ b/clang/lib/Basic/SourceManager.cpp @@ -1757,6 +1757,10 @@ FileID SourceManager::translateFile(const FileEntry *SourceFile) const { SourceLocation SourceManager::translateLineCol(FileID FID, unsigned Line, unsigned Col) const { + // Lines are used as a one-based index into a zero-based array. This assert + // checks for possible buffer underruns. + assert(Line != 0 && "Passed a zero-based line"); + if (FID.isInvalid()) return SourceLocation(); |
