For(Int i=1; i<=NUM_RELAYS; i++) { char *callback; sprintf(callback,

Question

For(Int i=1; i<=NUM_RELAYS; i++) { char *callback; sprintf(callback,

"switchRelay%d",i);
Alarm.alarmRepeat(sch_hours,sch_minutes,0, PASS_CALLBACK_NAME_HERE); //
}

Is it possible to pass function pointer as string made by sprintf?

0

11.09.2022

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Bruno F · Accepted Answer

Bruno F

It won't work. Functions stay in the read only portion of the memory. If you try to write to it, you will get a segfault. And also the types are different, so you would have to force a very strange conversion

0

12.09.2022

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For(Int i=1; i<=NUM_RELAYS; i++) { char *callback; sprintf(callback,

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