Kevin Bracey bb733f1ee8 Callback updates ... * Optimise clearing by adding `nullptr` overload. This overload means `Callback(NULL)` or `Callback(0)` will no longer work; users must use `Callback(nullptr)` or `Callback()`. * Optimise clearing by not clearing storage - increases code size of comparison, but that is extremely rare. * Reduce ROM used by trivial functors - share copy/destroy code. * Config option to force trivial functors - major ROM saving by eliminating the "operations" table. * Config option to eliminate comparison altogether - minor ROM saving by eliminating zero padding. * Conform more to `std::function` API.		2020-03-11 15:46:03 +02:00
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main.cpp	Callback updates	2020-03-11 15:46:03 +02:00