gistfile1.txt

void parse_white_and_comments()
{
    for(;;)
    {
        maybe_skip_white();
        if(*cs != '/')
            return;
        ++cs;
do_wht1:
        if(! cs)
            return suspend(state::wht1);
        if(*cs == '/')
        {
            // C++ comment
            ++cs;

do_wht2:
            if(! skip_to_newline())
                return suspend(state::wht2);


        }
        else if(*cs == '*')
        {
            // C comment
            ++cs;

do_wht3:
            if(! skip_to_closing_comment())
                return suspend(state::wht3);
        }
        else
        {
            ec_ = error::bad_comment;
            return;
        }
    }
}