converting strings to integers

[random260]

I am new to c++ coming from Visual basic and I know there has GOT to be an easy way to convert a string to an integer (i.e. something like the Visual Basic "VAL" command
(x=val(string))) but I can't find it in my books or online. Here is an example of what I would like to do.

#include <iostream>
#include <string>
using namespace std;

string age = &quot;&quot;;
int age2 = 0.0;

int main()
{
cout << &quot;Enter your age &quot;;
getline (cin,age);

convert the info in string age to the integer age2 here

cout << age2;

return 0;
}

Yes I know I could use cin or put it directly into the int age2 - this is just a sample - what I actually have is a program that is reading several strings from disk and then one integer - I would like to input them all into a string, then just convert the one that is a number to an int. HELP!!!!!!!
Thanks

 

[WesMc]

int nAge = atoi( age ); // convert char* to integer
double dX = atoi( szX ) // convert char* to double

do not forget to ....
#include <stdlib.h>

 

[WesMc]

oops...

should be double dX = atof(szX) // convert char* to double