[gcc r16-7865] libstdc++: Reference C++11 standard more precisely in regex comments

[Jonathan Wakely]

https://gcc.gnu.org/g:f48b1235800939afc3a32c200d177fbf273779c2

commit r16-7865-gf48b1235800939afc3a32c200d177fbf273779c2
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Tue Feb 24 19:49:54 2026 +0000

    libstdc++: Reference C++11 standard more precisely in regex comments
    
    libstdc++-v3/ChangeLog:
    
            * include/bits/regex_compiler.h: Adjust comments so that
            standard references are specific to C++11.

Diff:
---
 libstdc++-v3/include/bits/regex_compiler.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libstdc++-v3/include/bits/regex_compiler.h b/libstdc++-v3/include/bits/regex_compiler.h
index f90de0a8fc92..167db5e87218 100644
--- a/libstdc++-v3/include/bits/regex_compiler.h
+++ b/libstdc++-v3/include/bits/regex_compiler.h
@@ -53,7 +53,7 @@ namespace __detail
   /**
    * @brief Builds an NFA from an input iterator range.
    *
-   * The %_TraitsT type should fulfill requirements [28.3].
+   * The %_TraitsT type should fulfill the requirements in C++11 28.3 [re.req].
    */
   template<typename _TraitsT>
     class _Compiler
@@ -206,7 +206,7 @@ namespace __detail
       const _CtypeT&      _M_ctype;
     };
 
-  // [28.13.14]
+  // C++11 28.13 [re.grammar] p14
   template<typename _TraitsT, bool __icase, bool __collate>
     class _RegexTranslatorBase
     {