Getting an int from a file

Is there any way to get a line from a file and turn it into an int?
like:

ifstream.getline(int);

#include <stdio.h>
...
fscanf(filepointer,"%d",&integer);

eeep.....
clarify?

He used the c-style stream method. If it is an int, why not just do

Code:

int variable;
ifstream input("file.txt");
input>>variable;

Because i want to read one of the lines from the file not the whole file.