It is an index no more than that no pointer or fluffy logic 
when you look at mem's code, it is that simply:
for(uint8_t servicedAlarmId = 0; servicedAlarmId < dtNBR_ALARMS; servicedAlarmId++)
{
.......
}
by the way, I probably fucked up somewher in my previous code, while tring to use mems new getTriggeredAlarmId It look's like some functions are called too many times, I go to bed for now, and will try to understand if it is a bug or not.
See you later