On 13.03.2018 16:21, Giuseppe Modugno wrote:
I have ip4_addr_t and I want to set it to a "null"/invalid value. Is it
better to use IPADDR_NONE or IPADDR_ANY?


ANY! NONE is all ones and is only used in parsing functions returning "this is not a valid IP address".

This is derived from INADDR_ANY and INADDR_NONE, so it's not really lwIP-specific, just slightly changed names.

Simon

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