where is cout in Qt Creator

[Ahmed Abdellatif]

it depending on what is the type of your app, console app or gui app. if it was console it would be appeared on console application but if you were using a gui, it should be appeared in the application output only when using

qDebug()<<"hello world";

[RandyBonnette]

Hello,

I've been using Qt4 and C++ for making programs in computer graphics, now switching to Gt5. How can I use 'cout' to print the variables in the console at run-time? It doesn't work, even when I add the libraries. Here's the error message: error: ‘cout’ was not declared in this scope



https://stackoverflow.com/questions/3886105/how-to-print-to-console-when-using-qt https://writemyessaytoday.net/write-my-essay-in-6-hours https://www.qtcentre.org/threads/33506-where-is-cout-in-Qt-Creator

[d_stranz]

cout is declared in the C++ Standard Library. You need to #include <iostream> and preface cout with the std:: scope:

std::cout << "Hello world!" <<std::endl;

std::cout << "Hello world!" <<std::endl;

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Or (bad practice) add a "using namespace std;" declaration after including iostream.