I have often wanted to auto generate targets with progressive numbers to ensure uniqueness or count the number of times a particular macro is used and most especially to compare two numbers to see if they are numerically greater, less or equal.
Example: generating rules from potentially very long lists of targets - you can end up with a list that is longer than even the generous limit for command lines on Linux and much too long for Windows so if you can do arithmetic you can chop the list into sizes that can be dealt with. Doing it with 'x' es to represent numbers as in the GMSL was gross.
Regards,
Tim