ULONG apxAtoulW()

in src/native/windows/src/utils.c [372:410]

• 35 lines of code
• 16 McCabe index (conditional complexity)

ULONG apxAtoulW(LPCWSTR szNum)
{
    ULONG rv = 0;
    DWORD sh = 1;
    int   s  = 1;
    LPCWSTR p = szNum;

    /* go to the last digit */
    if (!p || !*p)
        return 0;
    if (*p == L'-') {
        s = -1;
        ++p;
    }
    while (*(p + 1)) p++;

    /* go back */
    while (p >= szNum) {
        ULONG v = 0;
        switch (*p--) {
            case L'0': v = 0UL; break;
            case L'1': v = 1UL; break;
            case L'2': v = 2UL; break;
            case L'3': v = 3UL; break;
            case L'4': v = 4UL; break;
            case L'5': v = 5UL; break;
            case L'6': v = 6UL; break;
            case L'7': v = 7UL; break;
            case L'8': v = 8UL; break;
            case L'9': v = 9UL; break;
            default:
                return rv * s;
            break;
        }
        rv = rv + (v * sh);
        sh = sh * 10;
    }
    return rv * s;
}