codecvt::always_noconv


public member function
int always_noconv() const throw();

Return noconv characteristics

Returns whether a conversion between the internal and external types will yield a copy without any real conversion (either a translation or a type casting).

If this function returns true for a particular type of codecvt, then its members codecvt::in and codecvt::out will always return codecvt::noconv.

During its operation, this function simply calls the virtual protected member codecvt::do_always_noconv, which is the member function in charge of performing the actions described above.

Parameters

none

Return value

true if codecvt::in and codecvt::out will always result in codecvt::noconv.

Example

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// codecvt::always_noconv example
#include <iostream>
#include <locale>
using namespace std;

int main ()
{
  locale loc;

  cout << "always_noconv for codecvt<char,char,mbstate_t>: ";
  cout << use_facet<codecvt<char,char,mbstate_t> >(loc).always_noconv();
  cout << endl;

  cout << "always_noconv for codecvt<wchar_t,char,mbstate_t>: ";
  cout << use_facet<codecvt<wchar_t,char,mbstate_t> >(loc).always_noconv();
  cout << endl;

  return 0;
}


Output:

always_noconv for codecvt<char,char,mbstate_t>: 1
always_noconv for codecvt<wchar_t,char,mbstate_t>: 0


See also

codecvt::in Translate in characters (public member function)
codecvt::out Translate out characters (public member function)
codecvt::encoding Return encoding width (public member function)
codecvt::do_always_noconv Return noconv characteristics [virtual] (virtual protected member function)