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std::collate<CharT>::~collate

From cppreference.com
< cpp‎ | locale‎ | collate
 
 
 
Localization library
 
 
Defined in header <locale>
protected: ~collate();

Destructs a std::collate facet. This destructor is protected and virtual (due to base class destructor being virtual). An object of type std::collate , 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::collate and implements a public destructor.

[edit] Example

Run this code
#include <iostream>
#include <locale>
 
struct Destructible_collate : public std::collate <wchar_t>
{
 Destructible_collate(std::size_t refs = 0) : collate(refs) {}
 // note: the implicit destructor is public
};
 
int main()
{
 Destructible_collate dc;
 // std::collate<wchar_t> c; // compile error: protected destructor
}
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