[fpc-pascal] Feature announcement: Dynamic array extensions

[Sven Barth]

Bernd Oppolzer <bernd.oppolzer at t-online.de> schrieb am So., 3. Juni 2018,
11:56:

>
>
> Am 02.06.2018 um 15:14 schrieb Sven Barth via fpc-pascal:
>
> Mark Morgan Lloyd <markMLl.fpc-pascal at telemetry.co.uk> schrieb am Sa., 2.
> Juni 2018, 10:53:
>
>> However as Dennis points out + is also essential for vector operations.
>> Perhaps either leaving it to the programmer to define what's needed
>> would be the best approach, or alternatively splitting dynamic arrays
>> into mathematical vectors and non-mathematical collections. Or relaxing
>> the requirement that only predefined operators can be redefined, so that
>> something like _ could be used for concatenation.
>>
>
> That needlessly complicates the parser as the compiler still needs to know
> them and they also need to be part of its operator precedence rules. Don't
> complicate the language for nothing! And in the end operator overloads are
> one of the best examples for syntactic sugar as you can easily achieve the
> same result with functions and methods.
>
> Regards,
> Sven
>
>
> This is somehow off topic of course,
> but IMO it is strange to use + for string concatenation;
> I always have bad feelings about this. This whole thread would
> not exist, if FreePascal had gone another direction like PL/1, for
> example,
> where the string concatenation operator is ||
> (and DB2, and - probably - other SQL dialects).
>

FPC inherited the +-operator for concatenation from the base language:
Pascal. So there simply was no other route to take (not that anyone would
have thought to take a different route).


> Where does this + for string concat come from?
>

Ask Wirth, he is the one who invented Pascal...

Regards,
Sven

>
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