Weird kind of input question

Lets say I had four variables:
int a, b, c, d;

I now want the user to input a value for all those variables:
cout << "What would you like a,b,c,d to be?";

Is there a command that will assign all those variables the value that the user typed in? I know their is a=b=c=d and many other ways you could do it after the getline or cin. But is there a function that will take what the user types and automatically assign it to all those variables?

For example, this isn't valid syntax, but this would be the idea:

int a,b,c,d;
cout << "What number?";
getline(cin, a,b,c,d);

OR...

cout << "What number?";
cin >> a,b,c,d

Thanks in advance.
-andy

I am not good at C++, but from my understanding of streams you should try this:

cout << "Please enter a b c and d separated by spaces";
cin >> a;
cin >> b;
cin >> c;
cin >> d;

untested, as usual, and I take no responsibility if it formats your hard disk or blows up your pc

doesn't work..tried it before. But thanks anyways. by the way..hirsch you da man!

Seems like I still don´t get this cin-cout-concept yet

M.Hirsch's suggestion worked fine for me:


Compiles and runs the same on Windows (MinGW g++) and Red Hat 7.0. Got the results I expected when I separated the numbers by a space or a new-line, however it got weird if I separated them with commas. I assume there's a way to specify the delimiter.

Here are the sample runs:

Windows:
C:\dcw\PROJECTS\TEST>a
Enter four digits: 1 2 3 4

You entered: 1 2 3 4

C:\dcw\PROJECTS\TEST>a
Enter four digits: 1,2,3,4

You entered: 1 7667204 -1 7667200

C:\dcw\PROJECTS\TEST>a
Enter four digits: 1
2
3
4

You entered: 1 2 3 4

C:\dcw\PROJECTS\TEST>

Red Hat:
[wise@pc10593 misc]$ ./a.out
Enter four digits: 1 2 3 4

You entered: 1 2 3 4
[wise@pc10593 misc]$ ./a.out
Enter four digits: 1,2,3,4

You entered: 1 134518984 134514385 -1073742648
[wise@pc10593 misc]$ ./a.out
Enter four digits: 1
2
3
4

You entered: 1 2 3 4
[wise@pc10593 misc]$


BTW, M.Hirsch, I never could see the reason for iostreams and never use them unless I am forced to. But then I also miss punch cards; they made really great book marks and paper Christmas wreaths.

M.Hirsch,

You understand cin/cout fine. I would do it a little differently and combine all the cin's into one:


However, I think andy3109 wants the user to input only one value and have it assigned to multiple variables, which I don't think the operator >> can do. I don't really see why that's a problem when you can just do this:

int a, b, c;

cin>>a;
b=c=a;

and it wouldn't make sense to define a cin function to do that because it wouldn't be as efficient.

yea..i know..i just thought there might be one line that I could type that would perform the task without doing a=b=c (another line). Thanks anways.
-andy

Well, you could sort of cheat and use the comma operator, if you had to . The following works for me on g++ 3.2 on RedHat Linux 8.0:

ok..thats actually more of what i am looking for. Thx scorp.
-andy

"ok..thats actually more of what i am looking for."

Why? Are you in some kind of competition to write a given program using the fewest number of lines?

Im always looking to make my code shorter, more efficient, take up less memory, etc. Just like many C++ programmers try to do.