forked from boostorg/core
79 lines
1.4 KiB
C++
79 lines
1.4 KiB
C++
/*
|
|
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_NO_CXX11_ALLOCATOR)
|
|
#include <boost/core/alloc_construct.hpp>
|
|
#include <boost/core/lightweight_test.hpp>
|
|
|
|
class type {
|
|
public:
|
|
explicit type(int x)
|
|
: value_(x) { }
|
|
|
|
int value() const {
|
|
return value_;
|
|
}
|
|
|
|
static int count;
|
|
|
|
private:
|
|
type(const type&);
|
|
type& operator=(const type&);
|
|
|
|
int value_;
|
|
};
|
|
|
|
int type::count = 0;
|
|
|
|
template<class T>
|
|
struct creator {
|
|
typedef T value_type;
|
|
|
|
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 V>
|
|
void construct(type* ptr, const V& value) {
|
|
::new(static_cast<void*>(ptr)) type(value + 1);
|
|
++type::count;
|
|
}
|
|
|
|
void destroy(type* ptr) {
|
|
ptr->~type();
|
|
--type::count;
|
|
}
|
|
};
|
|
|
|
int main()
|
|
{
|
|
creator<type> a;
|
|
type* p = a.allocate(1);
|
|
boost::alloc_construct(a, p, 1);
|
|
BOOST_TEST_EQ(type::count, 1);
|
|
BOOST_TEST_EQ(p->value(), 2);
|
|
boost::alloc_destroy(a, p);
|
|
BOOST_TEST_EQ(type::count, 0);
|
|
return boost::report_errors();
|
|
}
|
|
#else
|
|
int main()
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|