| 140 | /** A tuple accessor that returns a reference to the `I`-th element. */ |
| 141 | template<typename T, T I, typename... Args> |
| 142 | constexpr decltype(auto) |
| 143 | tuple_get(tuple<Args...> const & t, integral_constant<T, I>) |
| 144 | { |
| 145 | #if BOOST_PARSER_USE_STD_TUPLE |
| 146 | return std::get<I>(t); |
| 147 | #else |
| 148 | return hana::at_c<I>(t); |
| 149 | #endif |
| 150 | } |
| 151 | |
| 152 | /** A tuple accessor that returns a reference to the `I`-th element. */ |
| 153 | template<typename T, T I, typename... Args> |