Andrew Pennebaker schrieb:
> In some languages, especially scripting languages, units can serve
dual purposes. They can act as both a library and a self-sufficient
program. RosettaCode describes this behavior as scripted main. If it's
possible to compile a Pascal unit such that it executes initialization
code as if it were a typical program/begin/end file, then this dual
behavior can be achieved.
In Pascal, units are only libraries of code. You need a separate program
that loads the unit (with "uses") to get an executable. If you don't
reuse the code in the unit you don't even need a unit, just write a
program with the code. Units serve the only purpose of code libraries
you can use in multiple programs.
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