No actions in Qt, after I entered the Cin() data.

[mgstanley]

#include <iostream>
 
int main()
{  
//    An example that illustrates using the arithmetic operators:
    // define variables:
    unsigned int yards {}, feet {}, inches {};
    // Convert a distance in yards,feet and inches to inches
    std::cout << "Enter a distance as yards,feet and inches"
              << " with the three values separated by spaces:"
              << std::endl;
    std::cin >> yards >> feet >> inches;
    
// define constants
    const unsigned feet_per_yard {3};
    const unsigned inches_per_feet {12};

 
    // define other formulations and elements
    unsigned total_inches {};
    total_inches = inches + inches_per_feet * (yards * feet_per_yard +feet);
    std::cout << "The distances corresponds to " << total_inches << " inches.\n";

 
    // Convert a distance in inches to yards feet and inches
    std::cout << "Rnter a distance in inches: ";
    std::cin >> total_inches;

 
    // define other formulations and elements
    feet = total_inches / inches_per_feet;
    inches = total_inches % inches_per_feet;
    yards = feet / feet_per_yard;
    feet = feet % feet_per_yard;

 
    std::cout << "The distance corresponds to"
              << yards << " yards"
              << feet << " feet"
              << inches << " inches." << std::endl;
}

It runs well in Visual Studio.but not in Qt.
after I entered the Cin() need data:1（space）2（space）3(enter key），then the cursor stopped when it moved to the second line...
what is the wrong with this ？Thx.

[JKSH]

@mgstanley Your code works fine for me when I build and run it with MinGW 7.3.0 in Qt Creator.

How are you configuring your project? If you use qmake, make sure you have CONFIG += console in your .pro file.

[mgstanley]

@JKSH Thx,but where can find the .pro file?

[jsulm]

@mgstanley said in No actions in Qt, after I entered the Cin() data.:

but where can find the .pro file?

Inside your project folder

[Thembalami Msimango]

This post is deleted!

[mgstanley]

@jsulm Thx, but awkward situation is, I still cannot find *.pro file in all the newly built Qt console application project, except in Qt widgets application project.

And the *.pro file in Qt widgets application project, still does not work after I added CONFIG += console sentence in......☹

[JKSH]

@mgstanley said in No actions in Qt, after I entered the Cin() data.:

I still cannot find *.pro file in all the newly built Qt console application project

What build system did you choose for your projects: qmake, or CMake, or qbs?

.pro files are used by qmake only.

And the *.pro file in Qt widgets application project, still does not work after I added CONFIG += console sentence in......☹

Well, a widgets project should not have a console...

[mgstanley]

@JKSH thx...
but after added CONFIG += console sentence in the *.pro file, the problem is still there: 1 2 3 (enter), then nothing happened...

[jsulm]

@mgstanley And you did a complete rebuild of your app after changing pro file (delete build folder, run qmake, build)?

[mgstanley]

@jsulm there is no build folder! 😮
In the untitled project folder , I only can see: main.cpp; untitled.pro; untitled.pro.user ,thses 3 files.

[jsulm]

@mgstanley You can see the build folder in project settings in QtCreator. Usually it is net to project folder (but not inside the project folder).