61 lines
1.2 KiB
C++
61 lines
1.2 KiB
C++
/*
|
|
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)
|
|
*/
|
|
#ifndef BOOST_CORE_DATA_HPP
|
|
#define BOOST_CORE_DATA_HPP
|
|
|
|
#include <iterator>
|
|
|
|
// Note: MSVC doesn't define __cpp_lib_nonmember_container_access but supports the feature even in C++14 mode
|
|
#if (defined(__cpp_lib_nonmember_container_access) && (__cpp_lib_nonmember_container_access >= 201411l)) || \
|
|
(defined(_MSC_VER) && (_MSC_VER >= 1900))
|
|
|
|
namespace boost {
|
|
using std::data;
|
|
} /* boost */
|
|
|
|
#else // (defined(__cpp_lib_nonmember_container_access) ...
|
|
|
|
#include <cstddef>
|
|
#include <initializer_list>
|
|
|
|
namespace boost {
|
|
|
|
template<class C>
|
|
inline constexpr auto
|
|
data(C& c) noexcept(noexcept(c.data())) -> decltype(c.data())
|
|
{
|
|
return c.data();
|
|
}
|
|
|
|
template<class C>
|
|
inline constexpr auto
|
|
data(const C& c) noexcept(noexcept(c.data())) -> decltype(c.data())
|
|
{
|
|
return c.data();
|
|
}
|
|
|
|
template<class T, std::size_t N>
|
|
inline constexpr T*
|
|
data(T(&a)[N]) noexcept
|
|
{
|
|
return a;
|
|
}
|
|
|
|
template<class T>
|
|
inline constexpr const T*
|
|
data(std::initializer_list<T> l) noexcept
|
|
{
|
|
return l.begin();
|
|
}
|
|
|
|
} /* boost */
|
|
|
|
#endif // (defined(__cpp_lib_nonmember_container_access) ...
|
|
|
|
#endif
|