Atmosphere/stratosphere/libstratosphere/include/boost/callable_traits/has_member_qualifiers.hpp

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/*
@Copyright Barrett Adair 2015-2017
Distributed under the Boost Software License, Version 1.0.
(See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
*/
#ifndef BOOST_CLBL_TRTS_HAS_MEMBER_QUALIFIERS_HPP
#define BOOST_CLBL_TRTS_HAS_MEMBER_QUALIFIERS_HPP
#include <boost/callable_traits/detail/core.hpp>
namespace boost { namespace callable_traits {
//[ has_member_qualifiers_hpp
/*`[section:ref_has_member_qualifiers has_member_qualifiers]
[heading Header]
``#include <boost/callable_traits/has_member_qualifiers.hpp>``
[heading Definition]
*/
// inherits from either std::true_type or std::false_type
template<typename T>
struct has_member_qualifiers;
//<-
template<typename T>
struct has_member_qualifiers : detail::traits<
detail::shallow_decay<T>>::has_member_qualifiers {
using type = typename detail::traits<
detail::shallow_decay<T>>::has_member_qualifiers;
};
// older compilers don't support variable templates
#ifdef BOOST_CLBL_TRTS_DISABLE_VARIABLE_TEMPLATES
template<typename T>
struct has_member_qualifiers_v {
static_assert(std::is_same<T, detail::dummy>::value,
"Variable templates not supported on this compiler.");
};
#else
//->
// only available when variable templates are supported
template<typename T>
//<-
BOOST_CLBL_TRAITS_INLINE_VAR
//->
constexpr bool has_member_qualifiers_v = //see below
//<-
detail::traits<detail::shallow_decay<T>>::has_member_qualifiers::value;
#endif
}} // namespace boost::callable_traits
//->
/*`
[heading Constraints]
* none
[heading Behavior]
* `std::false_type` is inherited by `has_member_qualifiers<T>` and is aliased by `typename has_member_qualifiers<T>::type`, except when one of the following criteria is met, in which case `std::true_type` would be similarly inherited and aliased:
* `T` is a function with member qualifiers
* `T` is a member function pointer with member qualifiers
* `T` is a function object with a member-qualified `operator()`
* On compilers that support variable templates, `has_member_qualifiers_v<T>` is equivalent to `has_member_qualifiers<T>::value`.
[heading Input/Output Examples]
[table
[[`T`] [`has_member_qualifiers_v<T>`]]
[[`void() const`] [`true`]]
[[`void() const transaction_safe`] [`true`]]
[[`void() volatile &&`] [`true`]]
[[`int(foo::*)() &`] [`true`]]
[[`void(foo::*)() const`] [`true`]]
[[`void(foo::*&)() const`] [`true`]]
[[`void(foo::* const)() const`] [`true`]]
[[`void()`] [`false`]]
[[`void() transaction_safe`] [`false`]]
[[`void(*)()`] [`false`]]
[[`void(*&)()`] [`false`]]
[[`int`] [`false`]]
[[`const int`] [`false`]]
[[`int foo::*`] [`false`]]
[[`const int foo::*`] [`false`]]
]
[heading Example Program]
[import ../example/has_member_qualifiers.cpp]
[has_member_qualifiers]
[endsect]
*/
//]
#endif //BOOST_CLBL_TRTS_HAS_MEMBER_QUALIFIERS_HPP