[Bug 265480] std::regex constructor throwing an exception at backslash-underscore but not other invalid escapes

From: <bugzilla-noreply_at_freebsd.org>
Date: Wed, 14 May 2025 04:49:49 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=265480

Jaime Corchado <skaltar@icloud.com> changed:

           What    |Removed                     |Added
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                 CC|                            |skaltar@icloud.com

--- Comment #2 from Jaime Corchado <skaltar@icloud.com> ---
(In reply to Milo Cooper from comment #0)
libcxx basic_regex makes a special case for a leading underscore (_).


Commit b4c64ad90b81d2a779786b7edb4c5c6dd28cc57d removed the flag to suppress a
regex exception. See line 3961.

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