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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/core/alloc_construct.hpp>
#include <boost/core/default_allocator.hpp>
#include <boost/core/lightweight_test.hpp>
class type {
public:
explicit type(int x = 0, int y = 0)
: value_(x + y) {
++count;
}
type(const type& other)
: value_(other.value_) {
++count;
}
~type() {
--count;
}
int value() const {
return value_;
}
static int count;
private:
int value_;
};
int type::count = 0;
void test_construct()
{
boost::default_allocator<type> a;
type* p = a.allocate(1);
boost::alloc_construct(a, p);
BOOST_TEST_EQ(type::count, 1);
BOOST_TEST_EQ(p->value(), 0);
boost::alloc_destroy(a, p);
BOOST_TEST_EQ(type::count, 0);
a.deallocate(p, 1);
}
void test_construct_value()
{
boost::default_allocator<type> a;
type* p = a.allocate(1);
boost::alloc_construct(a, p, 1);
BOOST_TEST_EQ(type::count, 1);
BOOST_TEST_EQ(p->value(), 1);
boost::alloc_destroy(a, p);
BOOST_TEST_EQ(type::count, 0);
a.deallocate(p, 1);
}
#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && \
!defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
void test_construct_args()
{
boost::default_allocator<type> a;
type* p = a.allocate(1);
boost::alloc_construct(a, p, 1, 2);
BOOST_TEST_EQ(type::count, 1);
BOOST_TEST_EQ(p->value(), 3);
boost::alloc_destroy(a, p);
BOOST_TEST_EQ(type::count, 0);
a.deallocate(p, 1);
}
#endif
void test_construct_n()
{
boost::default_allocator<type> a;
type* p = a.allocate(3);
boost::alloc_construct_n(a, p, 3);
BOOST_TEST_EQ(type::count, 3);
BOOST_TEST_EQ(p[0].value(), 0);
BOOST_TEST_EQ(p[1].value(), 0);
BOOST_TEST_EQ(p[2].value(), 0);
boost::alloc_destroy_n(a, p, 3);
BOOST_TEST_EQ(type::count, 0);
a.deallocate(p, 3);
}
void test_construct_n_list()
{
boost::default_allocator<type> a;
type* p = a.allocate(3);
type q(1);
boost::alloc_construct_n(a, p, 3, &q, 1);
BOOST_TEST_EQ(type::count, 4);
BOOST_TEST_EQ(p[0].value(), 1);
BOOST_TEST_EQ(p[1].value(), 1);
BOOST_TEST_EQ(p[2].value(), 1);
boost::alloc_destroy_n(a, p, 3);
BOOST_TEST_EQ(type::count, 1);
a.deallocate(p, 3);
}
void test_construct_n_iterator()
{
boost::default_allocator<type> a;
type* p = a.allocate(3);
type l[] = { type(1), type(2), type(3) };
boost::alloc_construct_n(a, p, 3, &l[0]);
BOOST_TEST_EQ(type::count, 6);
BOOST_TEST_EQ(p[0].value(), 1);
BOOST_TEST_EQ(p[1].value(), 2);
BOOST_TEST_EQ(p[2].value(), 3);
boost::alloc_destroy_n(a, p, 3);
BOOST_TEST_EQ(type::count, 3);
a.deallocate(p, 3);
}
int main()
{
test_construct();
test_construct_value();
#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && \
!defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
test_construct_args();
#endif
test_construct_n();
test_construct_n_list();
test_construct_n_iterator();
return boost::report_errors();
}
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