cin.getline issues

gimmybob2 · #1 (**permalink**) July 21st, 2011, 07:46 PM

Hello-
I am new to C++ and was am working my way through a book and doing the exercises. One of these exercises was to write a program that will get the user to enter a string and then print it back out. I decided to use the cin.getline iostream function to accomplish this. Here is the pertinent code:

Code:

 char buffer[30];
		cin.getline(buffer, 30, '\n');
		for(int i = 0; i < 30; i++)
			cout << buffer[i];

However, when I compile and run this program, a blank terminal simply flashes on and then disappears into cybernetic oblivion and I never get a chance to enter input. What did I do wrong?

MtD · #2 (**permalink**) September 19th, 2011, 04:22 PM

Since you're using C++, try the user-friendly C++ std::string, instead of not-so-user-friendly C-style char array.
So, essentially:

Code:

#include <iostream>
#include <string>
 
int main()
{
  std::string UserEnteredString;
  std::cin >> UserEnteredString;
  std::cout << UserEnteredString << '\n';
 
}

Incidentally, you don't have to print out your C-style char array "buffer" character-by-character, you can simply stream the entire thing via cout: http://www.cplusplus.com/reference/i...tream/getline/