Please help me to solve this IO problem.

Hi everyone,
I'm an absolute newbie in C++, please help me to solve this problem. This problem is something related to the getline method.
I write a program to ask for user's age and name. Just for demonstrating some IO operations.

Code:

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/*IO Example*/
#include <iostream>
#include <string>

using namespace std;

int main() {
        int age;
        string name;
        //
        cout << "Please enter your age:";
        cin >> age;
        cout << "Your age is: " << age;
        cout << " so your year of birth is " << 2010 - age << ".\n";
        //
        cout << "Please enter your name: \n";
        getline (cin , name);
        cout << "Hello " << name << " ! What a good day!";
       
        return 0;
}

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The program cannot get the name. In fact, it doesn't give me opportunity to type.

It's so easy with someone but please help me,

Thanks very much!
Nichya

This is because your input buffer looks like this:

Code:

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4  2  \n J  o  e  B  o  b  \n
X  X  ^

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At the time you call getline, ^ is where the input is, X has already been read by the >>. getline() sees the \n, and thinks that it has read 1 line, with no characters except for \n.

You have a few choices:
1) Call cin.ignore() to skip 1 character (hopefully the \n)
2) Call getline(), and ignore it, then call it for real
3) Write something a bit smarter based on 1 or 2

A simple solution that will always work with this type of setup based on #1 is to call cin.ignore() immediately after every call to cin >>. (But never immediately after a call to getline.)

Since operator>> stops at whitespace and leaves it in the stream, there will always be a character to ignore. Since operator>> skips initial whitespace, it won't cause problems if have back to back calls to cin >> with the cin.ignore() in between.