[Bug libstdc++/84671] [6/7/8 Regression] Chrono literals don't accept apostrophe as separator

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84671

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|jwakely.gcc at gmail dot com       |
               Host|Linux x86 64-bit            |

--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Testing this fix:

--- a/libstdc++-v3/include/bits/parse_numbers.h
+++ b/libstdc++-v3/include/bits/parse_numbers.h
@@ -197,6 +197,13 @@ namespace __parse_int
                    "integer literal does not fit in unsigned long long");
     };

+  // Skip past digit separators:
+  template<unsigned _Base, unsigned long long _Pow, char _Dig, char..._Digs>
+    struct _Number_help<_Base, _Pow, '\'', _Dig, _Digs...>
+    : _Number_help<_Base, _Pow, _Dig, _Digs...>
+    { };
+
+  // Terminating case:
   template<unsigned _Base, unsigned long long _Pow, char _Dig>
     struct _Number_help<_Base, _Pow, _Dig>
     {