std::codecvt<InternT,ExternT,StateT>:: ~codecvt

Destructs a std:: codecvt facet. This destructor is protected and virtual (due to base class destructor being virtual). An object of type std:: codecvt , like most facets, can only be destroyed when the last std::locale object that implements this facet goes out of scope or if a user-defined class is derived from std:: codecvt and implements a public destructor.

Example

#include <iostream>
#include <locale>
 
struct Destructible_codecvt : public std::codecvt<wchar_t, char, std::mbstate_t>
{
    Destructible_codecvt(std::size_t refs = 0) : codecvt(refs) {}
    // note: the implicit destructor is public
};
 
int main()
{
    Destructible_codecvt dc;
    // std::codecvt<wchar_t> c; // compile error: protected destructor
}