std::messages<CharT>::close,std::messages<CharT>::do_close (3) - Linux Manuals

std::messages<CharT>::close,std::messages<CharT>::do_close: std::messages<CharT>::close,std::messages<CharT>::do_close


std::messages<CharT>::close,std::messages<CharT>::do_close - std::messages<CharT>::close,std::messages<CharT>::do_close


Defined in header <locale>
public: (1)
void close( catalog c ) const;
protected: (2)
virtual void do_close( catalog c ) const;

1) public member function, calls the protected virtual member function do_close of the most derived class.
2) Releases the implementation-defined resources associated with an open catalog that is designated by the value c of type catalog (inherited from std::messages_base), which was obtained from open().


c - a valid open catalog identifier, on which close() has not yet been called

Return value



On POSIX systems, this function call usually translates to a call to catclose(). In GNU libstdc++, which is implemented in terms of GNU gettext(), it does nothing.


The following example demonstrated retrieval of messages: on a typical GNU/Linux system it reads from /usr/share/locale/de/LC_MESSAGES/
// Run this code

  #include <iostream>
  #include <locale>

  int main()
      std::locale loc("de_DE.utf8");
      auto& facet = std::use_facet<std::messages<char>>(loc);
      auto cat ="sed", loc);
      if(cat < 0 )
          std::cout << "Could not open german \"sed\" message catalog\n";
          std::cout << "\"No match\" in German: "
                    << facet.get(cat, 0, 0, "No match") << '\n'
                    << "\"Memory exhausted\" in German: "
                    << facet.get(cat, 0, 0, "Memory exhausted") << '\n';

Possible output:

  "No match" in German: Keine Übereinstimmung
  "Memory exhausted" in German: Speicher erschöpft

See also