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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:
type(int x, int y)
: value_(x + y) { }
int sum() const {
return value_;
}
private:
int value_;
};
int main()
{
{
std::unique_ptr<int,
boost::alloc_deleter<int, creator<int> > > result =
boost::allocate_unique<int>(creator<int>(), 1);
BOOST_TEST(result.get() != 0);
BOOST_TEST(*result == 1);
}
{
std::unique_ptr<const int,
boost::alloc_deleter<const int, creator<> > > result =
boost::allocate_unique<const int>(creator<>(), 1);
BOOST_TEST(result.get() != 0);
BOOST_TEST(*result == 1);
}
{
std::unique_ptr<type,
boost::alloc_deleter<type, creator<type> > > result =
boost::allocate_unique<type>(creator<type>(), type(1, 2));
BOOST_TEST(result.get() != 0);
BOOST_TEST(result->sum() == 3);
}
{
std::unique_ptr<const type,
boost::alloc_deleter<const type, creator<> > > result =
boost::allocate_unique<const type>(creator<>(), type(1, 2));
BOOST_TEST(result.get() != 0);
BOOST_TEST(result->sum() == 3);
}
return boost::report_errors();
}
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