[Bug fortran/47007] Values from namelist file should not depend on locale settings

[burnus at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47007

--- Comment #19 from Tobias Burnus <burnus at gcc dot gnu.org> ---
Seemingly, g++ prefers to unset the locale. Namely,
libstdc++-v3/config/locale/generic/c_locale.cc has:

      // Assumes __s formatted for "C" locale.
      char* __old = setlocale(LC_ALL, 0);
      const size_t __len = strlen(__old) + 1;
      char* __sav = new char[__len];
      memcpy(__sav, __old, __len);
      setlocale(LC_ALL, "C");
...
      setlocale(LC_ALL, __sav);
      delete [] __sav;