Uploaded image for project: 'Qt Creator'
  1. Qt Creator
  2. QTCREATORBUG-32759

[Reg 14.0.2 -> 16.0.0] Application Output pane no longer prints stdout/stderr messages when debugging

XMLWordPrintable

    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: P2: Important P2: Important
    • None
    • Qt Creator 16.0.0
    • Project & Build Management
    • None
    • Windows 10 22H2

      The test at QTBUG-132350 shows that stderr messages used to be flushable to the Application Output pane when debugging. This is no longer the case in Qt Creator 16.0.0.

       

      Code

      #include <iostream>
#include <QDebug>

int main()
{
    std::cout << "Hello\n";
    fflush(stdout);

    std::cerr << "There\n";
    fflush(stderr);

    qDebug() << "World";
}

       

      Steps to reproduce

      1. Create a new "Qt Widgets Application" project and replace main.cpp with the code above
      2. Build the project in Debug mode
      3. Select "Build" > "Run"
      4. Select "Debug" > "Start Debugging" > "Start Debugging of Startup Project"

       

      Expected Output (Step #3)

      09:16:22: Starting D:\QtSupport\untitled30\build\Desktop_Qt_6_8_3_MSVC2022_64bit-Debug\debug\untitled30.exe...
Hello
There
World
09:16:22: D:\QtSupport\untitled30\build\Desktop_Qt_6_8_3_MSVC2022_64bit-Debug\debug\untitled30.exe exited with code 0

       

      Actual Output (Step #4)

      09:16:28: Debugging D:\QtSupport\untitled30\build\Desktop_Qt_6_8_3_MSVC2022_64bit-Debug\debug\untitled30.exe ...
World
09:16:29: Debugging of D:\QtSupport\untitled30\build\Desktop_Qt_6_8_3_MSVC2022_64bit-Debug\debug\untitled30.exe has finished.

        No reviews matched the request. Check your Options in the drop-down menu of this sections header.

            davschul David Schulz
            skoh-qt Sze Howe Koh
            Votes:
            0 Vote for this issue
            Watchers:
            1 Start watching this issue

              Created:
              Updated:

                There are no open Gerrit changes