getline not getting a line!

[DrumCoder]

hi guys,

I've finished my first year in a computing degree and I'm trying to get myself ahead of the game by learning some C++.

I'm having some trouble making getline work in the desired way. At the moment I'm doing little more then asking the user to input an int and then 2 strings however the program seems to be passing over the first getline in my code completly. I'm programming on Microsoft Visual Studio 2008.

Here's my source code

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

int main()
{
int myInt = 0;
cout << "enter integer" << endl;
cin >> myInt;
cout <<"myInt = " << myInt << endl;

string firstString;
cout << "enter string" << endl;
getline(cin,firstString);
cout << "firstString = " << firstString << endl;

string secondString;
cout << "enter string" << endl;
getline(cin,secondString);
cout << "secondString = " << secondString << endl;

system("PAUSE");
return 0;
}

if anyone can explain what's causing the problem I'd be very greatful

Cheers guys

[Mitsakos]

The input stream has an Enter from the previous cin and it doesn't stop for the getline(). Try using a cin.ignore() before the first getline() to clear it.

[LacViet]

Yep. I have this same problem a few times. So irritating. Just put like Mitsakos said cin.ignore(); right on top of the firststring declaration.

Or you can change it to using <sstream>.

#include <iostream>
#include <string>
#include <sstream>
using namespace std;

int main ()
{
  string mystring;
  int input(0);

  cout << "Enter an integer: ";
  getline (cin,mystring);
  stringstream(mystring) >> input;
  cout << input << endl; 
  
  cout << "Enter a string: ";
  getline (cin,mystring);
  cout << mystring << endl;

  cout << "Enter a second string: "; 
  getline (cin,mystring); 
  cout << mystring << endl; 
  
  return 0;
}

[Hasan Erdem]

Thanks

[DrumCoder]

You guys are legends the lot of ya!

I'm going through this book "learn C++ by making games" already found one problem as it asks you to make a program with strings without putting the #include <string> at the beginning... good start eh?

Anyhow thanks for this, I shall try it once I get home tonight.