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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:nil -*-
// vim: ts=8 sw=2 smarttab expandtab
#pragma once
#include <type_traits>
namespace _impl {
template <class T> struct always_false : std::false_type {};
};
template <class T>
void assert_moveable(T& t) {
// It's fine
}
template <class T>
void assert_moveable(const T& t) {
static_assert(_impl::always_false<T>::value, "unable to move-out from T");
}
namespace internal {
template <typename Obj, typename Method, typename ArgTuple, size_t... I>
static auto _apply_method_to_tuple(
Obj &obj, Method method, ArgTuple &&tuple,
std::index_sequence<I...>) {
return (obj.*method)(std::get<I>(std::forward<ArgTuple>(tuple))...);
}
}
template <typename Obj, typename Method, typename ArgTuple>
auto apply_method_to_tuple(Obj &obj, Method method, ArgTuple &&tuple) {
constexpr auto tuple_size = std::tuple_size_v<ArgTuple>;
return internal::_apply_method_to_tuple(
obj, method, std::forward<ArgTuple>(tuple),
std::make_index_sequence<tuple_size>());
}
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