[libcxx-commits] [PATCH] D75622: [FIX][libc++][Regex] Using regex_constants match_prev_avail | match_not_bol | match_not_bow

[Diogo N. Sampaio via Phabricator via libcxx-commits]

dnsampaio added a comment.

Hi @EricWF, thanks for the review.
Indeed there seems to have some other unrelated issue for matching the word boundary `\b`. Perhaps I wrongly assumed that it should also match line beginning and end.
For example, I would expect all these matches to succeed:

  cout << regex_match("a", regex("\ba")) << "\n"
       << regex_match("a", regex("a\b")) << "\n"
       << regex_match("a", regex("\ba\b")) << "\n"
       << regex_match("a", regex("a")) << "\n";

But what I get is:

  0
  0
  0
  1

So it is unrelated in how `match_not_bow` is ignored when using `match_prev_avail`. I would rather open a defect for that apart.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D75622/new/

https://reviews.llvm.org/D75622