Ticker functional not available in ESP32 but works fine in ESP8266

[ceewanna]

I have just recently migrated codes in ESP8266 to ESP32 where Ticker is used quite extensively. I found that codes get errors. For instance, https://github.com/esp8266/Arduino/blob/master/libraries/Ticker/examples/TickerFunctional/TickerFunctional.ino which works fine in ESP8266 becomes error.

Also in ESP32 it seems c++ compiler is different from ESP8266 because constexpr (std::is_same_v<T, float>) couldn't pass and now I have to revise the code to (std::is_same<T, float>::value), not including finding way to resolve Ticker functional in class method.

I am not so sure if I miss something or it's normal.