#include <stdio.h>
#include <c++/bits/locale_classes.h>

class Foo : public std::locale::facet
{
public:
    static void test()
    {
        printf("test\n");
        std::__c_locale arg1;
        char const *arg2;
        std::locale::facet::_S_lc_ctype_c_locale(arg1, arg2);
    }
};

extern "C" void test()
{
    Foo::test();
}