void show_time_setup() {}
void set_time_setup() {}
void set_alarm_setup() {}
void set_date_setup() {}
void (*mode_setup[])(void) = {
&show_time_setup,
&set_time_setup,
&set_alarm_setup,
&set_date_setup // <-- generates 3 identical error on this line
};
int main() {}
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