On Wed, Jan 12, 2011 at 21:24, Michael Schnell <mschn...@lumino.de> wrote: > += does work for variables, even Strings. > > AFAIR, there already has been a discussion about += and friends for > properties. > > In fact I don't see why the compiler not just generates "x.a := x.a + y" > from "x.a += y" before doing any code generating, disregarding what x.a is. > Of course an error message will occur if x.a is not writable for any reason. >
Blindly replacing "a += b" with "a := a + b" may lead to a semantic change if "a" is an expression with side-effects. Nevertheless, I do think that implementing += for properties is a good idea, but unfortunately FPC developers disagree. -- Alexander S. Klenin _______________________________________________ fpc-devel maillist - fpc-devel@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-devel
