Bernd Oppolzer <bernd.oppol...@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-pas...@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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