Do While Loop Problems

[Bobarino]

I don't understand why my Do While loop skips over the input the second time round?

#include <iostream> 
#include <cstring>
#include <cstdlib> 
#include <string>

using namespace std; 

//prototype
string reverseInput(string *);

int main ()
{
//variable    
string input;  
char ans;

//do while 
 do
{     
     cout<<"Please input anything you would like to see backwards."<<endl;
     getline(cin,input);//cin input
     input = reverseInput(&input); //call reverse function
     cout << input << endl; //cout reverse input
     cout<<"Try again?"<<endl;
     cin>> ans;
}

while (ans!='y');

    system ("PAUSE");
    return EXIT_SUCCESS; 
}

//reverse function
string reverseInput (string *strPtr) 
{ 
  string result="";
    for (int i=0; i<(*strPtr).length( ); i++)  
  { //get length 
   result = (*strPtr)[i] + result ; //reverse order
  } 
  return result; 
} 

[Yanson]

I don't understand why my Do While loop skips over the input the second time round?

there is a newline left in the input stream from the user pressing enter

cin>> ans;
cin.ignore(); //<<---------add this 

[Bobarino]

Yes! I even told myself not to forget that at some point. Thank you very much!