My first console C++ program on Qt Creator

tomy

@SGaist
Thanks. I did it and it showed the output I wanted on the Terminal.
But still I see the errors and red lines on the code! :(

Why while the program runs successfully does Qt Qreator show them? And how to get rid of them. They are ugly indeed.

SGaist

Try changing the code model used by Qt Creator.

JKSH

@tomy said in My first console C++ program on Qt Creator:

Of course. I get 6 issues. 5 of them are errors and one warning, as shown in the screenshot in the first post here.

The screenshot in your first post shows errors and warnings from the static code analyzer, not from your compiler. We can tell because the red circle and yellow triangles are "hollow". Errors and warnings from your compiler have "filled" circles and triangles.

Try to build and run your code to activate your compiler. Does it run successfully?

Anyway, you are seeing these errors because the static code analyzer thinks you are writing C code (not C++ code) for some reason. You can disable it by clicking Help > About Plugins... and unchecking C++ > Clang Code Model

@tomy said in My first console C++ program on Qt Creator:

If using qmake in Linux (Ubuntu) is this way, I did and below is the output. My project is on the Desktop named "hello_world".

I believe @SGaist meant running qmake from within Qt Creator, when your project is open. The menu item is Build > Run qmake.

Running qmake in the console does not change anything in Qt Creator.

tomy

@SGaist

What are the preferences choices for console C++ programming on the code model section, please?
How to find a way to be rid of these bothersome issues and go on programming?

JKSH

@tomy said in My first console C++ program on Qt Creator:

What are the preferences choices for console C++ programming on the code model section, please?

As I said in my previous post, you can disable the Clang Code Model clicking Help > About Plugins... and unchecking C++ > Clang Code Model

tomy

@JKSH
Thanks so much. It removed the majority of the red underlines.
Only two lines remain!

One more thing: Why does the IDE think I'm C coding while I explicitly told it by choosing "plain C++" that I would be coding on C++?

JKSH

@tomy said in My first console C++ program on Qt Creator:

Why does the IDE think I'm C coding while I explicitly told it by choosing "plain C++" that I would be coding on C++?

I don't know. It works fine for me on Windows.

It might be related to your Kit settings (this is just a guess).

tomy

@JKSH
Kids are only the Desktop kit:

By the way, I'm on Linux. Have you tried a plain C++ project on Linux to see if there are those red underlines or not?

Cobra91151

@tomy

Hi! I think the problem is with your compiler, try setting it as g++ not gcc.

For example, using MinGW on Windows (compiler path is ....\g++.exe):

JKSH

@tomy said in My first console C++ program on Qt Creator:

By the way, I'm on Linux. Have you tried a plain C++ project on Linux to see if there are those red underlines or not?

Unfortunately, I don't have a Linux machine with a recent version of Qt and Qt Creator.

One thing you could try is to create a Qt Console Application, then remove Qt from the .pro file.

tomy

@Cobra91151
Is it on Linux, please?
The options are different between Windows and Linux.

Cobra91151

@tomy

I don't think that Qt Creator is different on Linux and Windows. Check: Tools -> Options -> Kits -> Compilers. Then select your compiler and click Browse. Your compiler should be "..\g++.exe" or something similar to it. Check if it's available for you.

tomy

There is no g++ unfortunately.

SGaist

Do you mean you only have gcc installed ?
In that case, install g++.

tomy

@SGaist
I've that installed in its newest version on the machine.

SGaist

Can you show what the kit you are using looks like ?

Cobra91151

@tomy said in My first console C++ program on Qt Creator:

There is no g++ unfortunately.

If you have it installed, click the Add button to navigate and add the g++ compiler to Qt Creator.

Note:
Make sure you know the path to g++ compiler on your system.

tomy

Thanks so much to you both.
The problem was with the kits. I defined gcc for the C++ compiler and it removed the redundant stuff from the code.