以正确的顺序输出队列

时间:2012-10-05 06:41:57

标签: c++ queue

输出实数或整数 我正在从文件中按字符读取一个数字字符。它将读取一个整数并将其推入integerQueue直到达到'。',然后它将切换到将其输入到realQueue中。

然后当我打印时,它需要打印出来,即Real:123.4343

但是现在输出是Real:123。整数4343

不知怎的,我的while循环或我的if语句没有完成它的工作。我只是找不到我的错误

问题是,如何修复输出以便打印出123.4343

    //if the realQueue is empty, then we just read in an integer, currentState must be 1, in order to print integer
            if(realQueue.empty() || currentState == '1')//implementation of the FSM
            {
                    writeFile <<"Integer:       ";
                    while(!integerQueue.empty())
                    {
                    writeFile <<integerQueue.front();
                    integerQueue.pop();
                    }
            }
            //since the realQueue has values in it, then it must bea real Number
            else
            {
                //currentState = '2';
                // currentState must be == '2', since wwe have a real number to print

                    writeFile<<"Real:           ";
                        //currentState has to be in real mode for it to print out to file
                        while(!integerQueue.empty() && currentState == '2')
                        {
                        writeFile <<integerQueue.front();
                        integerQueue.pop();
                        }
                        // currentState has to be in real mode for it to print out to file
                        while(!realQueue.empty() && currentState == '2')
                        {
                        writeFile <<realQueue.front();
                        realQueue.pop();
                        }

            } 

1 个答案:

答案 0 :(得分:1)

尝试提交此循环,看看会发生什么。

while(!integerQueue.empty() && currentState == '2') 
{ 
  writeFile <<integerQueue.front(); 
  integerQueue.pop(); 
}