[Bug preprocessor/61638] "warning: multi-line comment" unclear and has false positives

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61638

--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Mon Dec  4 23:08:22 2017
New Revision: 255392

URL: https://gcc.gnu.org/viewcvs?rev=255392&root=gcc&view=rev
Log:
Fix warnings in <bits/regex_compiler.tcc>

        * include/bits/regex_compiler.tcc: Use C-style comment to work around
        PR preprocessor/61638.
        (__INSERT_REGEX_MATCHER): Replace GNU extension with __VA_ARGS__.

Modified:
    trunk/libstdc++-v3/ChangeLog
    trunk/libstdc++-v3/include/bits/regex_compiler.tcc