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      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 Facet> locale(const locale& other, Facet* f);
     13 
     14 #include <locale>
     15 #include <new>
     16 #include <cassert>
     17 
     18 #include "platform_support.h" // locale name macros
     19 
     20 int new_called = 0;
     21 
     22 void* operator new(std::size_t s) throw(std::bad_alloc)
     23 {
     24     ++new_called;
     25     return std::malloc(s);
     26 }
     27 
     28 void  operator delete(void* p) throw()
     29 {
     30     --new_called;
     31     std::free(p);
     32 }
     33 
     34 void check(const std::locale& loc)
     35 {
     36     assert(std::has_facet<std::collate<char> >(loc));
     37     assert(std::has_facet<std::collate<wchar_t> >(loc));
     38 
     39     assert(std::has_facet<std::ctype<char> >(loc));
     40     assert(std::has_facet<std::ctype<wchar_t> >(loc));
     41     assert((std::has_facet<std::codecvt<char, char, std::mbstate_t> >(loc)));
     42     assert((std::has_facet<std::codecvt<char16_t, char, std::mbstate_t> >(loc)));
     43     assert((std::has_facet<std::codecvt<char32_t, char, std::mbstate_t> >(loc)));
     44     assert((std::has_facet<std::codecvt<wchar_t, char, std::mbstate_t> >(loc)));
     45 
     46     assert((std::has_facet<std::moneypunct<char> >(loc)));
     47     assert((std::has_facet<std::moneypunct<wchar_t> >(loc)));
     48     assert((std::has_facet<std::money_get<char> >(loc)));
     49     assert((std::has_facet<std::money_get<wchar_t> >(loc)));
     50     assert((std::has_facet<std::money_put<char> >(loc)));
     51     assert((std::has_facet<std::money_put<wchar_t> >(loc)));
     52 
     53     assert((std::has_facet<std::numpunct<char> >(loc)));
     54     assert((std::has_facet<std::numpunct<wchar_t> >(loc)));
     55     assert((std::has_facet<std::num_get<char> >(loc)));
     56     assert((std::has_facet<std::num_get<wchar_t> >(loc)));
     57     assert((std::has_facet<std::num_put<char> >(loc)));
     58     assert((std::has_facet<std::num_put<wchar_t> >(loc)));
     59 
     60     assert((std::has_facet<std::time_get<char> >(loc)));
     61     assert((std::has_facet<std::time_get<wchar_t> >(loc)));
     62     assert((std::has_facet<std::time_put<char> >(loc)));
     63     assert((std::has_facet<std::time_put<wchar_t> >(loc)));
     64 
     65     assert((std::has_facet<std::messages<char> >(loc)));
     66     assert((std::has_facet<std::messages<wchar_t> >(loc)));
     67 }
     68 
     69 struct my_facet
     70     : public std::locale::facet
     71 {
     72     int test() const {return 5;}
     73 
     74     static std::locale::id id;
     75 };
     76 
     77 std::locale::id my_facet::id;
     78 
     79 int main()
     80 {
     81 {
     82     {
     83         std::locale loc(LOCALE_ru_RU_UTF_8);
     84         check(loc);
     85         std::locale loc2(loc, new my_facet);
     86         check(loc2);
     87         assert((std::has_facet<my_facet>(loc2)));
     88         const my_facet& f = std::use_facet<my_facet>(loc2);
     89         assert(f.test() == 5);
     90     }
     91     assert(new_called == 0);
     92 }
     93 {
     94     {
     95         std::locale loc;
     96         check(loc);
     97         std::locale loc2(loc, (std::ctype<char>*)0);
     98         check(loc2);
     99         assert(loc == loc2);
    100     }
    101     assert(new_called == 0);
    102 }
    103 }
    104