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data_test.cpp
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85 lines (72 loc) · 1.58 KB
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/*
Copyright 2023 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_CONSTEXPR) && !defined(BOOST_NO_CXX11_DECLTYPE)
#include <boost/core/data.hpp>
#include <boost/core/lightweight_test.hpp>
#include <iterator>
class range {
public:
int* data() {
return &v_[0];
}
const int* data() const {
return &v_[0];
}
std::size_t size() const {
return 4;
}
private:
int v_[4];
};
void test_range()
{
range c;
BOOST_TEST_EQ(boost::data(c), c.data());
}
void test_const_range()
{
const range c = range();
BOOST_TEST_EQ(boost::data(c), c.data());
}
void test_array()
{
int a[4];
BOOST_TEST_EQ(boost::data(a), a);
}
void test_initializer_list()
{
std::initializer_list<int> l{1, 2, 3, 4};
BOOST_TEST_EQ(boost::data(l), l.begin());
}
void test_ambiguity_with_std_data()
{
// Note: This preprocessor check should be equivalent to that in boost/core/data.hpp
#if (defined(__cpp_lib_nonmember_container_access) && (__cpp_lib_nonmember_container_access >= 201411l)) || \
(defined(_MSC_VER) && (_MSC_VER >= 1900))
// https://github.com/boostorg/core/issues/206
range c;
using std::data;
using boost::data;
BOOST_TEST_EQ(data(c), c.data());
#endif
}
int main()
{
test_range();
test_const_range();
test_array();
test_initializer_list();
test_ambiguity_with_std_data();
return boost::report_errors();
}
#else
int main()
{
return 0;
}
#endif