c++ equivalent to java's Integer class

I'm a Java programmer starting out with C++. I'm reading input from a text file with each line in the form of a date like "12/03/1990". I need to validate the month in the range of 01-12. In Java I would do this:

Code:

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String s = "12/03/1990";
String ss = "";
for (int i=0;i<2;i++) {
ss += s.charAt(i);
}
int n = Integer.parseInt(ss);
boolean x = (n >= 1 || n <= 12) ? true : false;

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Is there a class in C++ that can parse a string for numbers?

stringstream seems to be what you want.