Compiler "Hints" to speed up code

CS 301 Lecture, Dr. Lawlor

The exact type of variable you use can make a huge difference in how the compiler can speed up your code.  In order of increasing compiler terror:

Keywords to calm the compiler:
Keywords to frighten the compiler:
For the compiler, appearance matters!  You know that "sqrt(17)" will never, ever change and only needs to happen once, ever.  But you also know that "print_int(17)" needs to get called every time you write it.  If it's constant, say so!  If it only needs to happen once, only do it once!