I've been trying to get my programs to compile without any warnings or notes, 
but I keep getting this one:

promill.pas(2137,42) Hint: Converting the operands to "Int64" before doing the 
subtract could prevent overflow errors.

I get it a lot, but this is the line the above example is from:

Last_GS:=G_End-(Max_Program_To_Display-1);

Can someone please explain that this hint means and how I would convert the 
operands to "Int64" as recommended?

James

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