std::wbuffer_convert::~wbuffer_convert
From cppreference.com
< cpplrm; | localelrm; | wbuffer convert
| Defined in header <locale>
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| ~wbuffer_convert(); |
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Destroys the wbuffer_convert object and deletes the pointer to the conversion facet.
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 the locale-independent facets from <codecvt>.
Example
Run this code
#include <locale> #include <utility> #include <iostream> #include <codecvt> // utility wrapper to adapt locale-bound facets for wstring/wbuffer convert template<class Facet> struct deletable_facet : Facet { template<class ...Args> deletable_facet(Args&& ...args) : Facet(std::forward<Args>(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 ~wbuffer_convert" // std::wbuffer_convert<gbfacet_t, char32_t> gbto32(std::cout.rdbuf(), // 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::wbuffer_convert<gbfacet_t, char32_t> gbto32(std::cout.rdbuf(), new gbfacet_t("zh_CN.gb18030")); } // destructor called here
See also
| destructs the wstring_convert and its conversion facet (public member function of std::wstring_convert) |