test/libcxx/localization/locales/locale/locale.types/locale.facet/facet.pass.cpp

//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

// <locale>

// class locale::facet
// {
// protected:
//     explicit facet(size_t refs = 0);
//     virtual ~facet();
//     facet(const facet&) = delete;
//     void operator=(const facet&) = delete;
// };

// This test isn't portable

#include <locale>
#include <cassert>

#include "test_macros.h"

struct my_facet
    : public std::locale::facet
{
    static int count;
    my_facet(unsigned refs = 0)
        : std::locale::facet(refs)
        {++count;}

    ~my_facet() {--count;}
};

int my_facet::count = 0;

int main(int, char**)
{
    my_facet* f = new my_facet;
    f->__add_shared();
    assert(my_facet::count == 1);
    f->__release_shared();
    assert(my_facet::count == 0);
    f = new my_facet(1);
    f->__add_shared();
    assert(my_facet::count == 1);
    f->__release_shared();
    assert(my_facet::count == 1);
    f->__release_shared();
    assert(my_facet::count == 0);

  return 0;
}