protected virtual member function
<locale>

std::codecvt::do_always_noconv

bool do_always_noconv() const throw();

bool do_always_noconv() const noexcept;
Return noconv characteristics [virtual]
Virtual protected member function called by codecvt::always_noconv to get the noconv property of the object.

Polymorphic derived classes can overwrite the behavior of this function.

See codecvt::always_noconv for its default behavior in codecvt.

See also

codecvt::always_noconv
Return noconv characteristics (public member function )

C++