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/*
Copyright 2019 Glen Joseph Fernandes
(glenjofe@gmail.com)
Distributed under the Boost Software License, Version 1.0.
(http://www.boost.org/LICENSE_1_0.txt)
*/
#include <boost/smart_ptr/allocate_unique.hpp>
#include <boost/core/lightweight_test.hpp>
#include <boost/config.hpp>
template<class T = void>
struct creator {
typedef T value_type;
typedef T* pointer;
template<class U>
struct rebind {
typedef creator<U> other;
};
creator() { }
template<class U>
creator(const creator<U>&) { }
T* allocate(std::size_t size) {
return static_cast<T*>(::operator new(sizeof(T) * size));
}
void deallocate(T* ptr, std::size_t) {
::operator delete(ptr);
}
};
template<class T, class U>
inline bool
operator==(const creator<T>&, const creator<U>&)
{
return true;
}
template<class T, class U>
inline bool
operator!=(const creator<T>&, const creator<U>&)
{
return false;
}
class type {
public:
static unsigned instances;
type(int v1, int v2, int v3, int v4, int v5)
: sum_(v1 + v2 + v3 + v4 + v5) {
++instances;
}
~type() {
--instances;
}
int sum() const {
return sum_;
}
private:
int sum_;
type(const type&);
type& operator=(const type&);
};
unsigned type::instances = 0;
int main()
{
BOOST_TEST(type::instances == 0);
{
std::unique_ptr<type,
boost::alloc_deleter<type, creator<type> > > result =
boost::allocate_unique<type>(creator<type>(), 1, 2, 3, 4, 5);
BOOST_TEST(result.get() != 0);
BOOST_TEST(type::instances == 1);
BOOST_TEST(result->sum() == 15);
result.reset();
BOOST_TEST(type::instances == 0);
}
BOOST_TEST(type::instances == 0);
{
std::unique_ptr<const type,
boost::alloc_deleter<const type, creator<> > > result =
boost::allocate_unique<const type>(creator<>(), 1, 2, 3, 4, 5);
BOOST_TEST(result.get() != 0);
BOOST_TEST(type::instances == 1);
BOOST_TEST(result->sum() == 15);
result.reset();
BOOST_TEST(type::instances == 0);
}
return boost::report_errors();
}
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