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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/config.hpp>
#if (!defined(BOOST_LIBSTDCXX_VERSION) || \
BOOST_LIBSTDCXX_VERSION >= 46000) && \
!defined(BOOST_NO_CXX11_SMART_PTR)
#include <boost/smart_ptr/allocate_unique.hpp>
#include <boost/core/lightweight_test.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()
: value_(0.0) {
++instances;
}
~type() {
--instances;
}
void set(long double value) {
value_ = value;
}
long double get() const {
return value_;
}
private:
type(const type&);
type& operator=(const type&);
long double value_;
};
unsigned type::instances = 0;
int main()
{
{
std::unique_ptr<int,
boost::alloc_deleter<int,
boost::noinit_adaptor<creator<int> > > > result =
boost::allocate_unique_noinit<int>(creator<int>());
BOOST_TEST(result.get() != 0);
}
{
std::unique_ptr<const int,
boost::alloc_deleter<const int,
boost::noinit_adaptor<creator<> > > > result =
boost::allocate_unique_noinit<const int>(creator<>());
BOOST_TEST(result.get() != 0);
}
{
std::unique_ptr<type,
boost::alloc_deleter<type,
boost::noinit_adaptor<creator<type> > > > result =
boost::allocate_unique_noinit<type>(creator<type>());
BOOST_TEST(result.get() != 0);
BOOST_TEST(type::instances == 1);
result.reset();
BOOST_TEST(type::instances == 0);
}
{
std::unique_ptr<const type,
boost::alloc_deleter<const type,
boost::noinit_adaptor<creator<> > > > result =
boost::allocate_unique_noinit<const type>(creator<>());
BOOST_TEST(result.get() != 0);
BOOST_TEST(type::instances == 1);
result.reset();
BOOST_TEST(type::instances == 0);
}
return boost::report_errors();
}
#else
int main()
{
return 0;
}
#endif
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