Thread: Is there anyway to use the getline function with strings?

Originally posted by Terranc
i.e., could I turn a string into a stream, and use the getline function like this:

getline(stringToStream, stringName);

Is there anyway to turn a string into a stream, seperated by the \n, endl;

Thanks

Yes, there is. Here's how the apstring class does that.

Code:

istream & getline(istream & is, apstring & str)
{
	char ch;
	str = "";

	while(is.get(ch) && ch != '\n')
		str += ch;
	return is;
}

Now, you're probably going to have to finagle that to get it to work with the type of string you're using. To use the function above, call it like so:

Code:

getline(cin, string_variable);

If you need help getting that to work with your type of string(char[], string, etc.), just let us know what that is, post your code and a specific question, and we'll try to help you out.

I hope that answered your question

>i.e., could I turn a string into a stream, and use the getline function like this:
It sounds like you want a stringstream:

Code:

#include <iostream>
#include <sstream>

int main()
{
  std::string s = "Stuff up to the newline\nJunk after the newline";
  std::string a;

  std::istringstream iss ( s );

  std::getline ( iss, a );

  std::cout<< a <<std::endl;
}

-Prelude