Thread: whats wrong withthis prog.?

Hi, I've been haveing this really annoying problem...whenever I use 'cin' in my programs it keeps telling me 'phrase error before '<'...I went over it and made sure I declared all my variables and added all the ';' where they needed to be, but still no luck

heres the code:

Code:

#include <iostream.h>

int main()
{

cout<<"  .oooooo.         .o.       ooooo          .oooooo.   ooooo     ooo /n";
cout<<" d8P'  `Y8b       .888.      `888'         d8P'  `Y8b  `888'     `8' /n";
cout<<"888              .8888.      888         888           888       8   /n";
cout<<"888             .8' `888.     888         888           888       8 /n ";
cout<<"888            .88ooo8888.    888         888           888       8 /n ";
cout<<"`88b    ooo   .8'     `888.   888       o `88b    ooo   `88.    .8' /n ";
cout<< "`Y8bood8P'  o88o     o8888o o888ooooood8  `Y8bood8P'     `YbodP'   /n";
cout<<"                                                                    /n";
cout<<"          ( |      (  ___  ) |__   __|( ___   (  ____ ) "<<endl;
cout<<"          | (      | (   ) |   ) (   | (   ) || (    )| "<<endl;
cout<<"          | |      | (___) |   | |   | |   | || (____)| "<<endl;
cout<<"          | |      |  ___  |   | |   | |   | ||     __) "<<endl;
cout<<"          | |      | (   ) |   | |   | |   | || ( | (    "<<endl;
cout<<"          | (______| )   ( |   | |   | (___) || ) | (__ "<<endl;
cout<<"          (_______/|)     (|   )_(   (_______)|/   (___) "<<endl;
//^about ascii art was provided by at http://www.network-science.de/ascii
//provided I had to make a few ajustments to the ascii so my compiler would accept it...

int num1,opera,num2;

cout<<"Welcome to K's calculator"<<endl;
cout<<" * (shift + 8) = multiply";
cout<<"Input order is: 'number-operation-number' NO SPACES"<<endl;

cin>>"input:" num1 >> opera >> num2;

switch (opera)
{
case '+': cout << num1 <<'+' << num2 << '=' << (num1+num2);
     break;

case '-': cout << num1 <<'-' << num2 << '=' <<(num1-num2);
     break;

case '*': cout << num1 <<'*' << num2 << '=' <<(num1*num2);
     break;

case '/': cout << num1 <<'/' << num2 << '/' << (num1/num2);

     default: cout << opera <<":ERROR (@_@)" <<endl;
 }
      return 0;
}

somehow i tried that before and it didn't work, now i tried it again and it did....

since num1 is a variable you need to put a >> in front


Oh and when you run your program the graphics get messed up.

The only way the input will get passed to the respective variables is if the user seperates the numbers and operator with a space, ie "1 + 1". An input such as "1+1" will deliver undesired results.