Server : Apache/2.4.41 (Ubuntu) System : Linux absol.cf 5.4.0-198-generic #218-Ubuntu SMP Fri Sep 27 20:18:53 UTC 2024 x86_64 User : www-data ( 33) PHP Version : 7.4.33 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, Directory :  /usr/include/boost/callable_traits/detail/

Upload File : current_dir [ Writeable ] document_root [ Writeable ]

#ifndef BOOST_CLBL_TRTS_DETAIL_FORWARD_DECLARATIONS
#define BOOST_CLBL_TRTS_DETAIL_FORWARD_DECLARATIONS
#include <boost/callable_traits/detail/config.hpp>
#include <boost/callable_traits/detail/default_callable_traits.hpp>

namespace boost { namespace callable_traits { namespace detail {

template<typename T>
struct function;

template<typename T>
struct has_normal_call_operator
{
    template<typename N, N Value>
    struct check { check(std::nullptr_t) {} };

    template<typename U>
    static std::int8_t test(
        check<decltype(&U::operator()), &U::operator()>);

    template<typename>
    static std::int16_t test(...);

    static constexpr bool value =
        sizeof(test<T>(nullptr)) == sizeof(std::int8_t);
};

struct callable_dummy {
    void operator()() {}
};

template<typename T>
using default_to_function_object = typename std::conditional<
    has_normal_call_operator<T>::value,
    T, callable_dummy>::type;

template<typename T>
struct pmf;

template<typename T>
struct pmd;

template<typename F, typename T = typename std::remove_reference<F>::type>
using function_object_base = typename std::conditional<
    has_normal_call_operator<T>::value,
    pmf<decltype(&default_to_function_object<T>::operator())>,
    default_callable_traits<T>>::type;

template<typename T, typename Base = function_object_base<T>>
struct function_object;

}}} // namespace boost::callable_traits::detail

#endif // #ifndef BOOST_CLBL_TRTS_DETAIL_FORWARD_DECLARATIONS