reserve - Prepare an array or string to hold a given number of elements.
array n reserve -> array
reserve makes sure that the array can hold at least n objects.
If the current capacity of the array is lower than n, it will be resized.
Note that if the current capacity is larger than n, no resize will take place.
/var/www/debian/nest/nest-simulator-2.20.0/sli/slidata.cc