1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // <locale> 11 12 // template <> class codecvt<char, char, mbstate_t> 13 14 // explicit codecvt(size_t refs = 0); 15 16 #include <locale> 17 #include <cassert> 18 19 typedef std::codecvt<char, char, std::mbstate_t> F; 20 21 class my_facet 22 : public F 23 { 24 public: 25 static int count; 26 27 explicit my_facet(std::size_t refs = 0) 28 : F(refs) {++count;} 29 30 ~my_facet() {--count;} 31 }; 32 33 int my_facet::count = 0; 34 35 int main() 36 { 37 { 38 std::locale l(std::locale::classic(), new my_facet); 39 assert(my_facet::count == 1); 40 } 41 assert(my_facet::count == 0); 42 { 43 my_facet f(1); 44 assert(my_facet::count == 1); 45 { 46 std::locale l(std::locale::classic(), &f); 47 assert(my_facet::count == 1); 48 } 49 assert(my_facet::count == 1); 50 } 51 assert(my_facet::count == 0); 52 } 53