How is udp.h in arduino-esp32 core used ?

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1

I was looking at the arduino-esp32 core and under cores/esp32 there is a udp.h without
an associated cpp file.

Under the libraries folder there is the AsyncUDP library so I am wondering what is the reason for
the udp.h file in cores/esp32 directory ?

2

I didn't dive in details of how udp.h works, but in the general case for C ++ - the .cpp file is optional, it is quite acceptable to place all the code only in the .h file.

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3

Thanks for responding. I forgot about that.

4

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