QtCreator 2.1.0 final Nested QMap coloring error

raulgd · wrote on 10 Mar 2011, 21:49

On Qt Creator 2.1.0 final, I added a member function which returns a nested QMap defined as:
QMap< QString, QMap<QString, QString> >

But QtCreator colors it as an error, if I build my project everything works as it should, but I guess the text coloring parser has some problems coloring this. Here's a screenshot:

!http://www.jimi.com.mx/u/nestedQMap.png(error)!

just to be sure, I even removed the parameter name and just left the type (just in case the parser is super strict) but still no luck, keeps marking the error on both .h and .cpp so, what do you guys think, it's a bug? please someone else try it to see if it happens to anyone else as well so maybe we can report this.

dangelog · wrote on 10 Mar 2011, 23:10

You're missing a space between the two >> characters...

goetz · wrote on 10 Mar 2011, 23:33

[quote author="peppe" date="1299798621"]You're missing a space between the two >> characters...[/quote]

Indeed. The ">>" of the templates are interpreted as "operator >>" which is the stream input operator.

raulgd · wrote on 11 Mar 2011, 00:10

Ok, but that shouldn't happen right? because I'm declaring a return statement here, or can there be a return statement with stream operators?

dangelog · wrote on 11 Mar 2011, 00:40

Shouldn't happen what? Is that code automatically generated by Creator or did you mistype it?

goetz · wrote on 11 Mar 2011, 09:49

[quote author="Raul" date="1299802219"]Ok, but that shouldn't happen right? because I'm declaring a return statement here, or can there be a return statement with stream operators?[/quote]

That's a valid C++ error. Consider ">>" as a keyword - you can use it only where it is allowed.

stephenju · wrote on 13 Mar 2011, 04:32

Or once C++0x finally arrives in Qt land, you can then freely use them without space in nested templates. :)

andre · wrote on 13 Mar 2011, 10:18

Shouldn't that be "Or once C++0x finally arives. (period)"? AFAIK, it is still only a proposal, not a finalized standard?

goetz · wrote on 13 Mar 2011, 11:47

[quote author="Andre" date="1300011528"]Shouldn't that be "Or once C++0x finally arives. (period)"? AFAIK, it is still only a proposal, not a finalized standard?[/quote]

True. That's what I know too.

Time to change the beast's name to "C++1x" :-)

stephenju · wrote on 13 Mar 2011, 14:26

Some of the C++0x features have made into to gcc/mingw. I am not sure nested right brackets is allowed but I used auto a lot until I find out Mac is stuck in the last century thanks to Apple.

I really hope LLVM/clang support in Qt is coming quickly. A common compiler target makes life a lot easier.