How to convert a string to int

[AymanAfzal]

I am saving an int to a text file and reading it back but I am unable to reuse that int saved in file as an integer.
Please help.

[hanst99]

C:

int a;
//read int from file
fscanf(file, "%d",&a);
//read int from string
sscanf(string, "%d", &a);
//'convert' string to int:
a = atoi(string)

C++

int a;
//read int from file
file >> a;
//read int from string
stringstream ss;
ss << string;
ss >> a;
//'convert' string to int:
a = atoi(string.c_str());

[Bazzy]

Stream operations allow reading into integers just as with any other basic type

ifstream file("yourfile");
int your_int;
file >> your_int;