On Mon, 25 Feb 2013, Sven Barth wrote:


Am 25.02.2013 07:14 schrieb "Eric Kom" <eric...@metropolitancollege.co.za>:
>
> Good day,
>
> Please what is a difference between .pp and .pas files extension?

It's mostly a historical difference..pas are units that could (originally) be 
compiled with Turbo Pascal as well (which is why all
units of the compiler use .pas) while .pp was designated for units that can 
only be compiled by FPC (which is why the old units of
the RTL are called .pp). There is no technical difference between them. And for 
compatibility with Mac or Apple Pascal FPC also
supports .p (this extension can be seen in the Photoshop 1.0 source for 
example).

Today .pp is used for example for FPC's test files (also for new ones) out if 
habit.

I think you are under a misapprehension. It is not 'out of habit'. I use .pp for all my contributions, out of principle.

Michael.
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