[英]How can I 'push' and 'pop' from a queue of classes?
我正在編寫一個程序,該程序通過多用戶計算機的CPU模擬服務作業。 我定義了一個名為job
的類,並創建了兩個該類型的隊列,一個是waitQueue
,另一個是CPUqueue
。 我試圖填充CPUqueue
從數據waitQueue
從彈出它waitQueue
,將其推入CPUqueue
-這是我們的目標,但是。 我似乎無法在沒有錯誤的地方寫這部分內容,但錯誤提示error: request for member 'push' in 'waitQueue', which is of non-class type 'std::queue<job> [10]'
(對於其他函數調用好,請幫忙..!
這是我一直在處理的main.cpp文件:
#include <iostream>
#include <string>
#include <stdlib.h>
#include <queue>
#include "job.cpp"
using namespace std;
int main()
{
int second = 0, jobsCompleted = 0, jobsToComplete = 0, probUser = 0, probability;
long id;
jobType_t job_type;
int inWQ, outWQ, inCPUQ, outCPUQ, required, given, jobTypeInt;
queue<job> CPUqueue[10], waitQueue[10];
srand(time(NULL));
cout << "Enter how many jobs need to be completed: ";
cin >> jobsToComplete;
cout << endl << "Enter the probability that a new job is created: ";
cin >> probUser;
cout << endl;
while(jobsCompleted < jobsToComplete)
{
second++;
probability = rand() % 100 + 1;
if(probability > probUser)
{
cout << "Enter new JOB ID: ";
cin >> id;
jobTypeInt = rand() % 1 + 1;
if(jobTypeInt = 1) job_type = IO_bound;
else job_type = CPU_bound;
required = rand() % 10;
inWQ = second;
job *newJob = new job(id, job_type, inWQ, outWQ, inCPUQ, outCPUQ, required, given);
waitQueue.push(newJob);
}
while(!CPUqueue.isFull())
{
waitQueue.back();
job *temp = waitQueue.pop();
CPUqueue.push(temp);
}
}
return 0;
}
謝謝!
queue<job> CPUqueue[10], waitQueue[10];
這將創建兩個包含10個隊列的數組。 這可能不是您想要的。
嘗試:
queue<job> CPUqueue, waitQueue;
您有一個隊列數組,而不是隊列,並且推送不適用於該數組。
除了@otibom的答案:
non-class type ‘std::queue<job> [10]’
意味着: waitQueue
被聲明為數組。 數組中的對象是queue
,但veriable不是。
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