[Bug libstdc++/57808] operators == and != for regex_token_iterator need to be const

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57808

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |kai.unger@l-3com.com

--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
*** Bug 58376 has been marked as a duplicate of this bug. ***