Dev-C++

[ElfLite]

After I compile and try to run a code, it'd usually run and then almost immediatly shut off on me. It shows for nearly a millisecond and just turns off by itself. Can't really find a setting that would make it stay longer or until chosen to close.

[Phygar]

try using cin

[ElfLite]

// ask for a person's name, and greet the person
#include <iostream>
#include <string>
int main()
{
// ask for the person's name
std::cout << "Please enter your first name: ";
// read the name
std::string name; // define name
std::cin >> name; // read into
// write a greeting
std::cout << "Hello, " << name << "!" << std::endl;
return 0;
}

That's the code I tried this time and it turns as soon as the Hello "Name"! comes up on the screen, just have like a millisecond to see it.

[Phygar]

Put a cin after the output.

[Xarg0]

insert this at the end of main() previous return 0;

system("PAUSE");

[ElfLite]

insert this at the end of main() previous return 0;

system("PAUSE");

Yup it worked, thank you very much.

[SKU]

Things to Avoid in C/C++ -- system("pause"), Part 4 - GIDNetwork

std::cin.get();
return 0;

[TinusNED]

You may want to put this between the #include and int main()

using namespace std;

Now you can leave std:: away

[ElfLite]

Things to Avoid in C/C++ -- system("pause"), Part 4 - GIDNetwork

std::cin.get();
return 0;

I put that over return 0; and it just turned off immediatly again.

[TinusNED]

Try:

// ask for a person's name, and greet the person
#include <iostream>
#include <string>

using namespace std;

int main()
{

cout << "Please enter your first name: ";

string name; // define name
cin >> name; // read into

cout << "Hello, " << name << "!" << endl;

cin.ignore(cin.rdbuf()->in_avail() + 1);

return 0;
}

[Froogle]

std::cin.get() isn't working because cin already has a value (from cin >> name; )

See below...

// ask for a person's name, and greet the person
#include <iostream>
#include <string>
int main()
{
// ask for the person's name
std::cout << "Please enter your first name: ";
// read the name
std::string name; // define name
std::cin >> name; // read into
// write a greeting
std::cout << "Hello, " << name << "!" << std::endl;
//wipe buffer
std::cin.clear();
std::cin.sync();
//get cin - prevent closing
std::cin.get();
return 0;
}

[skatercam11]

Here, this may be some better, and possible clearer example...

/* These are called libraries. They are used to gather a bunch of premade functions and use them for yourself */
#include <iostream>
#include <string>

/* This uses the standard namespace (so you can excluse std::cout, and things of the like */
using namespace std;

int main()
{
    /* This initalizes a string called "first_name" */
    string first_name;
    
    /* This outputs text onto the screen */
    cout << "Hello, please enter your first name: ";
    
    /* This reads the users input and puts the data into the string */
    cin >> first_name;
    
    /* Outputs text onto the screen and places the data for the first_name string onto the screen as well */
    cout << "Welcome, " << first_name << "!" << endl;
    
    /* Stops the window from automatically closing */
    cin.clear();
    cin.sync();
    cin.get();
    
    
    /* Returns a value of 1 if the program exited successfully */
    return 1;
}

[noodles19]

Or just scram the c function getchar(); before return 0 and you'll be fine

[Froogle]

*cough* getchar sometimes requires an extra include.

And skatercam11, a link was previously posted in this thread as to why system("PAUSE") should not be used as it cannot be ported and it's a resource hog.

[LongBow]

Putting a while(1); before the return wouldn't require any includes and is platform independant.