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C++17 Tuple Operator Overloads
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| // Fold expressions from https://medium.com/@matt.aubury/rip-index-sequence-2014-2017-9cc854aaad0 | |
| ` | |
| template <typename... Ts, typename... Us> | |
| auto operator+( | |
| const std::tuple<Ts...> &tuple_t, const std::tuple<Us...> &tuple_u) { | |
| return std::apply( | |
| [&](const auto &... ts) { | |
| return std::apply( | |
| [&](const auto &... us) { return std::tuple(ts + us...); }, | |
| tuple_u); | |
| }, | |
| tuple_t); | |
| } | |
| template <typename... Ts, typename... Us> | |
| auto operator+=(std::tuple<Ts...> &tuple_t, const std::tuple<Us...> &tuple_u) { | |
| return std::apply( | |
| [&](auto &... ts) { | |
| return std::apply( | |
| [&](const auto &... us) { ((ts += us), ...); }, tuple_u); | |
| }, | |
| tuple_t); | |
| } |
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