Destructs astd::collate facet. This destructor is protected and virtual (due tobase class destructor being virtual). An object of typestd::collate, like most facets, can only be destroyed when the laststd::locale object that implements this facet goes out of scope or if a user-defined class is derived fromstd::collate and implements a public destructor.

[edit]Example

#include <iostream>#include <locale> struct Destructible_collate:publicstd::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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