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/usr/include/boost/callable_traits

Name	Size	Mode	Actions
detail/	-	0755	rm
add_member_const.hpp	3143	0644	edit dl rm
add_member_cv.hpp	3103	0644	edit dl rm
add_member_lvalue_reference.hpp	3715	0644	edit dl rm
add_member_rvalue_reference.hpp	3750	0644	edit dl rm
add_member_volatile.hpp	3152	0644	edit dl rm
add_noexcept.hpp	3183	0644	edit dl rm
add_transaction_safe.hpp	3380	0644	edit dl rm
add_varargs.hpp	2544	0644	edit dl rm
apply_member_pointer.hpp	4188	0644	edit dl rm
apply_return.hpp	3344	0644	edit dl rm
args.hpp	3582	0644	edit dl rm
class_of.hpp	1718	0644	edit dl rm
function_type.hpp	3588	0644	edit dl rm
has_member_qualifiers.hpp	3153	0644	edit dl rm
has_varargs.hpp	2785	0644	edit dl rm
has_void_return.hpp	2777	0644	edit dl rm
is_const_member.hpp	2880	0644	edit dl rm
is_cv_member.hpp	2786	0644	edit dl rm
is_invocable.hpp	2839	0644	edit dl rm
is_lvalue_reference_member.hpp	2943	0644	edit dl rm
is_noexcept.hpp	2786	0644	edit dl rm
is_reference_member.hpp	2879	0644	edit dl rm
is_rvalue_reference_member.hpp	2950	0644	edit dl rm
is_transaction_safe.hpp	2983	0644	edit dl rm
is_volatile_member.hpp	2907	0644	edit dl rm
qualified_class_of.hpp	2344	0644	edit dl rm
remove_member_const.hpp	2511	0644	edit dl rm
remove_member_cv.hpp	2523	0644	edit dl rm
remove_member_reference.hpp	2522	0644	edit dl rm
remove_member_volatile.hpp	2565	0644	edit dl rm
remove_noexcept.hpp	2570	0644	edit dl rm
remove_transaction_safe.hpp	2769	0644	edit dl rm
remove_varargs.hpp	2586	0644	edit dl rm
return_type.hpp	2270	0644	edit dl rm

Edit: /usr/include/boost/callable_traits/is_invocable.hpp (2839B)

@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_IS_INVOCABLE_HPP
#define BOOST_CLBL_TRTS_IS_INVOCABLE_HPP

#include <boost/callable_traits/detail/core.hpp>
#include <boost/callable_traits/detail/is_invocable_impl.hpp>

namespace boost { namespace callable_traits {

//[ is_invocable_hpp
/*`[section:ref_is_invocable is_invocable]
[heading Header]
``#include <boost/callable_traits/is_invocable.hpp>``
[heading Definition]
*/

// inherits from either std::true_type or std::false_type
template<typename T, typename... Args>
struct is_invocable;

// inherits from either std::true_type or std::false_type
template<typename Ret, typename T, typename... Args>
struct is_invocable_r;

//<-
template<typename T, typename... Args>
struct is_invocable : detail::is_invocable_impl<T, Args...>::type {
    using type = typename detail::is_invocable_impl<T, Args...>::type;
};

template<typename Ret, typename T, typename... Args>
struct is_invocable_r
  : detail::is_invocable_r_impl<
        typename detail::is_invocable_impl<T, Args...>::type, Ret, T, Args...>::type
{
    using type = typename detail::is_invocable_r_impl<
        typename detail::is_invocable_impl<T, Args...>::type, Ret, T, Args...>::type;
};

#ifdef BOOST_CLBL_TRTS_DISABLE_VARIABLE_TEMPLATES

template<typename T, typename... Args>
struct is_invocable_v {
    static_assert(std::is_same<T, detail::dummy>::value,
        "Variable templates not supported on this compiler.");
};

template<typename Ret, typename T, typename... Args>
struct is_invocable_r_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, typename... Args>
//<-
BOOST_CLBL_TRAITS_INLINE_VAR
//->
constexpr bool is_invocable_v = //see below
//<-
    detail::is_invocable_impl<T, Args...>::type::value;
//->

// only available when variable templates are supported
template<typename Ret, typename T, typename... Args>
//<-
BOOST_CLBL_TRAITS_INLINE_VAR
//->
constexpr bool is_invocable_r_v = //see below
//<-
    detail::is_invocable_r_impl<
        typename detail::is_invocable_impl<T, Args...>::type,
        Ret, T, Args...>::type::value;
#endif

}} // namespace boost::callable_traits
//->

/*`
[heading Constraints]
* none

[heading Behavior]
* standalone c++11 implementation of c++17 `std::is_invocable`, `std::is_invocable_r`
[note ref-qualified overloads of `operator()` with different signatures are not handled correctly yet.]

[heading Example Program]
[import ../example/is_invocable.cpp]
[is_invocable]
[endsect]
*/
//]

#endif // #ifndef BOOST_CLBL_TRTS_IS_INVOCABLE_HPP

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