assigning and casting (char) to (int)
i was just playing around with this and for some reason i can't get to work...
i have a text file (num.txt) which has ONLY 4 characters they are the following: 234'EOF'
what i'm trying to do is to read the 3 characters in untill the (end of file character) thus in result i want to add their values, however all that is being added is their ASCII representations.
I know i can use the insertion operators and input (int) integers, thus i wouldn't have a problem but i want to do it using fin.get() function...
here's the simple code:
Code:
#include<fstream>
#include<iostream>
#include<cstdlib>
using namespace std;
int main()
{
int sum = 0;
char num;
ifstream fin("num.txt");
if(fin.fail())
{
cout << "can't open the file for input\n";
exit(1);
}
else
{
fin.get(num);
while(!fin.eof())
{
cout << "ASCI : " << (int)num << endl << endl;
cout << "values : " << num << " " << endl << endl;
sum = sum + num;
fin.get(num);
}
}
cout << "The sum of 2 3 4 is: " << sum << endl;
return 0;
}
Thanks in advance....
ps. i tried using atoi() but i just can't get it to work for some reason... it requires a (char constant) but i can't make this constant....?????
