[PATCH] D94950: [clang][lex] Speculative fix for buffer overrun on raw string parse

[Brent Royal-Gordon via Phabricator via cfe-commits]

brentdax added inline comments.


================
Comment at: clang/lib/Lex/LiteralSupport.cpp:1639
       const char *Prefix = ThisTokBuf;
-      while (ThisTokBuf[0] != '(')
+      while (ThisTokBuf - Prefix < 16 && ThisTokBuf[0] != '(')
         ++ThisTokBuf;
----------------
Nit: "16" is a magic number; it might be better to use a constant or comment to document its significance (raw strings can only have 16-character delimiters).

(I believe this is C++11 [lex.string]p2, but I've never written one of the citation comments you see in clang, so I'm not sure if you should cite a later standard.)


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D94950/new/

https://reviews.llvm.org/D94950