Programs compiled in “simple c++” mode don't work when launching them from

Programs compiled in "simple c++" mode in QtCreator don't work correctly when launching them from qtcreator, but work when launching out from this ide.

When launching from QtCreator, the terminal window opens, i can enter in it anything, but program instructions don't work. The behavior without QtCreator is normal. This problem is in both: Debug and Release - buildes. Moreover, when i'm trying to use debug, breakpoints don't work too (even breakpoint set to the first line of main() function in main.cpp).

What can I do to solve this problem? Is this a bug or I'm just clumsy? Thank you.

The simple code that reproduce this problem:

Code:

---

#include 
 
using namespace std;
 
int main()
{
int num;
cin >> num;
cout << num << "\nHello world!\n";
return 0;
}

---

(Message to subscribe to thread)

try << std::endl; instead of the "\n". And make sure to use a real xterm as terminal, not a gnome-terminal or such.

They (on other forum) answered me it's Qt bug.

Who is "they" and what bug should that be?