iostream string to int conversion

[gcampton]

My function looks as this:

bool gotInteger(const string& str, int& i)
{
   istringstream ss(str);
   return ss >> i ? true : false ;
}

The error:

../a.cpp: In function 'bool gotInteger(const std::string&, int&)':
../a.cpp:175: error: variable 'std::istringstream ss' has initializer but incomplete type.

I have no idea what that means and it doesn't suggest the type I need to use, I tried adding .c_str() to str on line 175 but that didn't help.

[Duthomhas]

Did you #include <sstream> ?

[gcampton]

DOH!
dammit I even looked it up, thought it was part of iostream. :P
http://www.cplusplus.com/reference/iostream/istringstream/

edit: ooo, just noticed the class is shown in the top far right hand side either side of the divider.