644: Mainline

Although you can use the VERBOSE macro to control run time conditional statements, you should prefer the conditional-compilation approach for two reasons:

• First, when you use VERBOSE to control #ifdef–#endif compile-time combinations, you clearly indicate your intention to produce multiple run-time programs.
• Second, when you use VERBOSE to control run-time branching statements, your compiler squanders time compiling useless code—the unexecuted part of the if–else statement—and that useless code squanders run time memory.