no match for call to '(std::istream) (std::string&)'

[PieDude137]

This is part of a calculator program, whenever I try to compile it I get the following error message:

no match for call to '(std::istream) (std::string&)'

Here is the code:

#include <iostream>

using namespace std;

int main()
{
string first_input;

cout << "Please press\nf for fractions\np for percentages\nn for simple sums\n";
cin (first_input);//this is the line where the compiler says the error is. 

Thanking you in advance.

[maeriden]

First of all you have to include <string> to use std::string

What you're doing on line 10 is not what you think. To read from cin you use
cin >> variable
That looks like you're trying to call the istream constructor with a string as argument

[PieDude137]

Thanks, yep sorted now!