Loading...

XML

Word

Printable

Details

Type: Bug
Resolution: Unresolved
Priority: P3: Somewhat important
Fix Version/s: None
Affects Version/s: 6.8
Component/s: Core: I/O
Labels:
None

Platform/s:

All
Commits:
29dfcc240 (dev), 46ec49894 (6.8)

Description

QDirListing::const_iterator seems to point to a common instance, hence changing an iterator changes other instances:

   QDirListing l(QDir::homePath());
   auto it1 = l.begin();
    qDebug() << "it1=" << it1->absoluteFilePath();
    auto it2 = it1++;
    qDebug("it2 = it1++");
    qDebug() << "it1=" << it1->absoluteFilePath();
    qDebug() << "it2=" << it2->absoluteFilePath();

produces

Qt 6.8.0 (x86_64-little_endian-lp64 shared (dynamic) debug build; by GCC 13.2.0)
it1= "/home/user/Public"
it2 = it1++
it1= "/home/user/tmp"
it2= "/home/user/tmp"

it2 should still point to "/home/user/Public".

This was noticed during creating the Python bindings, here I need to emulate Java-Style iterators with next()/value() for the Python iterable protocol.