[Bug localedata/23792] New: fr_FR.UTF8 thousands separator is not C++ conforming

["rguenth at gcc dot gnu.org" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=23792

            Bug ID: 23792
           Summary: fr_FR.UTF8 thousands separator is not C++ conforming
           Product: glibc
           Version: 2.27
            Status: NEW
          Severity: normal
          Priority: P2
         Component: localedata
          Assignee: unassigned at sourceware dot org
          Reporter: rguenth at gcc dot gnu.org
                CC: libc-locales at sourceware dot org
  Target Milestone: ---

Appearantly C++ says it has to be a single character.  Testcase:

#include <iostream>
#include <locale>

using namespace std;

int
main()
{
  locale::global(locale(""));
  cout.imbue(locale());
  cout << 1000 << endl;
}

> LANG=fr_FR.UTF8 ./a.out 
1�000
> LANG=fr_FR.UTF8 ./a.out | hexdump -c
0000000   1 342   0   0   0  \n                                        
0000006

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