wstring%5Fconvert.html)) (raw)

Destroys the wstring_convert object and deletes _[cvtptr](../wstring%5Fconvert.html#cvtptr "cpp/locale/wstring convert")_ .

[edit] Notes

Some implementations are able to delete any facet, including the locale-specific facets with protected destructors. Other implementations require the facet to have a public destructor, similar to the locale-independent facets from .

[edit] Example

#include #include #include // utility wrapper to adapt locale-bound facets for wstring/wbuffer convert template struct deletable_facet : Facet { template<class... Args> deletable_facet(Args&&... args) : Facet(std::forward(args)...) {} ~deletable_facet() {} }; int main() { // GB18030 / UCS4 conversion, using locale-based facet directly // typedef std::codecvt_byname<char32_t, char, std::mbstate_t> gbfacet_t; // Compiler error: "calling a protected destructor of // codecvt_byname<> in ~wstring_convert" // std::wstring_convert gbto32(new gbfacet_t("zh_CN.gb18030")); // GB18030 / UCS4 conversion facet using a facet with public destructor typedef deletable_facet<std::codecvt_byname<char32_t, char, std::mbstate_t>> gbfacet_t; std::wstring_convert gbto32(new gbfacet_t("zh_CN.gb18030")); } // destructor called here