getline c++

If you use getline() after cin >> something, you need to flush the newline character from the buffer in between. You can do this with cin.ignore()

			
					string messageVar;
cout << "Type your message: ";
cin.ignore();
getline(cin, messageVar);

			
	

			
	
			

		
	

• This is because the operator >> leaves a newline character \n in the input buffer.
• This can become a problem when you are doing unformatted input, such getline() as one that reads the input until a newline character is found.

getline for string objects

• getline() is a useful function to retrieve string from input stream.

• getline() for string objects is a normal function, not a member of istream

			
					string & getline(istream & input, string & str, char delimiter = '\n' );

			
	

			
	
			

		
	

For example, the following code reads one line from the input stream and saves it into a string.

			
					string s;
getline(cin, s);
cout << s << endl;