Eclipse运行先前的程序

Question

I run this program and after that i get "Errors exists do you want to continue". Then i click yes and i get "Hello world" in the console. Which was the project i ran previously. Anybody knows what is the problem?

#include <iostream>
#include <typeinfo>
using namespace std;

int func() {
    return 42;
}

int main ( int argc, char ** argv ) {
    auto x = func();
    cout << x << endl;
    cout << typeid(x).name() << endl;
    return 0;
}

Answer 1

You may not have selected to run the right program. If you hover over the Run option in Eclipse, it'll give you a tool tip telling you what program it's going to run.

EDIT: Click the drop-down next to the run option, and see if your current program is in the list. If it isn't you need to make a run configuration for it. If don't have a run configuration, to make one, you click the drop down next to run > Run Configurations... > double click C/C++ Application > and fill in the proper information. After that click finish, and select that run configuration.

Answer 2

Go to the Project Explorer window, right click on your project and click on "Build Project". Now click on the Run button at the top (The green play button at the top). If you have errors, maybe its actually looking for the last build that ran without error. Let me know what happened when you tried this so I can assist you further.