[Interest] QDirIterator as Variable in class

[Giuseppe D'Angelo]

Il 23/04/2013 14:12, Adrian Stern ha scritto:
 >
 > MediaBase::MediaBase(QObject *parent) : QObject(parent) {

Error 1, straight from the compiler: since you're not calling a 
QDirIterator constructor in your constructor's initializer list for the 
mediaItr data member variable, the compiler calls the default 
constructor. But QDirIterator lacks a default constructor. Therefore, 
you got an error

 >   QDirIterator mediaItr();

Error 2, much more subtle: this is declaring a function called mediaItr, 
taking no arguments, returning a QDirIterator, and shadowing the member 
variable of the same name. (Yes, it's the C++ most vexing parse.) I know 
why you did this, but this is nonsense. Just remove it.

Note: I'm deliberately NOT writing the "solution" because I'd like to 
encourage you to search the web for all the keywords I used 
("initializer list", "member", "default constructor", "most vexing 
parse"). This is a C++ problem, not a Qt one.

HTH,
-- 
Giuseppe D'Angelo | giuseppe.dangelo at kdab.com | Software Engineer
KDAB (UK) Ltd., a KDAB Group company
Tel. UK +44-1738-450410, Sweden (HQ) +46-563-540090
KDAB - Qt Experts - Platform-independent software solutions