diff options
| author | Aaron Ballman <aaron@aaronballman.com> | 2013-11-18 18:29:00 +0000 |
|---|---|---|
| committer | Aaron Ballman <aaron@aaronballman.com> | 2013-11-18 18:29:00 +0000 |
| commit | fb21ecfa483bc679d06e8a21d154684bd5183637 (patch) | |
| tree | c9fce1d57030a4aad8c0c4739c38a665401f6b1b | |
| parent | f2b87508c744d6581200fa6521f0924b7f3c0e9f (diff) | |
| download | clang-fb21ecfa483bc679d06e8a21d154684bd5183637.tar.gz clang-fb21ecfa483bc679d06e8a21d154684bd5183637.tar.bz2 clang-fb21ecfa483bc679d06e8a21d154684bd5183637.tar.xz | |
Adding an assert to help catch possible buffer underruns.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@195024 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Basic/SourceManager.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Basic/SourceManager.cpp b/lib/Basic/SourceManager.cpp index 93e9a594e7..9d79551f91 100644 --- a/lib/Basic/SourceManager.cpp +++ b/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(); |