How to I redirect stderr to qt console for debuging purpose ?

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This test code throws expected error

C++

if (file.open(QIODevice::ReadWrite)) {

      file.open(QIODevice::ReadWrite);
      qDebug()<<stderr;

here is Qt console output

" file code block \n QString BT_Utility_Library::ProcessFile(QString, QString, QTextEdit *, QTextEdit *, int) @ line \n115"
0x7339eda1b6a0
QFile::open: File (text.txt) already open
0x7339eda1b6a0
" Success fILE OPEN  "

What I have tried:

I inserted

C++

qDebug()<<stderr;

in few places in my test function, no luck.

Posted 20-Jun-24 5:17am

jana_hus

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Pete O'Hanlon · Answer 1 · 2024-06-20T20:24:00

Note that I haven't actually tried this but, reading the QT docs[^] indicates that you could probably redirect stderr using something like this:

C++

std::cerr.rdbuf(std::cout.rdbuf());

Do that at the start of the application and cerr should be written to the standard cout buffer (this assumes that you haven't done something daft like redirected cout beforehand).

How to I redirect stderr to qt console for debuging purpose ?

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How to I redirect stderr to qt console for debuging purpose ?

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