c++ converting string to int

Question

//sLine is the string
for(int l = 0; l < sLine.length(); l++)
{
    string sNumber;
    if(sLine[l] == \'-\')
    {   
        sNumber.push_back(sLine[l]);
        sN         


        

Answer 1

It's displaying a zero for all nonrecognized characters, because atoi returns 0 when given a non-numeric string (like a space!)

However, what you want to do, is shockingly simple:

std::stringstream ss(sLine);
int num;
while(ss >> num) {
    cout << num;
}