Write a function to turn a string into an integer and test it

Question

Neha · Accepted Answer

public int AtoI(string str)
        {
            bool isNeg = false;
            int index = 0;

            if (str[0] == '-')
            {
                isNeg = true;
                index++;
            }

            int result = 0;
            // "123" 123 
            // 1 * 10 + 2 12 * 10 + 3
            int multiple = 1;
            int number = 0;
            for (int i = index; i < str.Length; i++)
            {
                number = str[i] - '0';
                result = result * multiple + number;
                multiple = 10;
            }

            if (isNeg)
            {
                result = result * -1;
            }

            return result;
        }

alan · Answer

CString csNum;
int nNum = 2;
csNum.format("%d", nNum);

Utilisateur anonyme · Answer

oops wrong one

CString csNum = "1";
int nNum = atoi(csNum);

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