#ifndef __QUEUE__ #define __QUEUE__ class CQueue { int * m_pData; int m_nHead,m_nTail; int m_nCount; public: CQueue(int nCount=10); bool isEmpty(); bool isFull(); void push(const int & v); bool pop(int &v); }; CQueue::CQueue(int nCount) { m_pData = new int[nCount]; m_nHead = m_nTail = 0; m_nCount = nCount; } void CQueue::push(const int & value) { if(!isFull()) { m_pData[m_nTail++] = value; if(m_nTail >= m_nCount) m_nTail = 0; } } bool CQueue::pop (int & value) { if(isEmpty())return false; value = m_pData[m_nHead++]; if(m_nHead >= m_nCount) m_nHead = 0; return true; } bool CQueue::isFull() { return ((m_nTail+1)%m_nCount == m_nHead); } bool CQueue::isEmpty() { return m_nHead == m_nTail; } #endif
调用方法如下:
#include#include "queue.h" using namespace std; int main(int argc, char* argv[]) { CQueue queue = 5; queue.push(2); queue.push(3); queue.push(4); queue.push(5); queue.push(6); queue.push(7); queue.push(8); int c = 0; queue.pop(c); cout << c < 模板化处理后,如下:
#ifndef __QUEUE__ #define __QUEUE__ templateclass CQueue { T * m_pData; int m_nHead,m_nTail; int m_nCount; public: CQueue(int nCount=10); bool isEmpty(); bool isFull(); void push(const T & v); bool pop(T &v); }; template CQueue ::CQueue(int nCount) { m_pData = new T[nCount]; m_nHead = m_nTail = 0; m_nCount = nCount; } template void CQueue ::push(const T & value) { if(!isFull()) { m_pData[m_nTail++] = value; if(m_nTail >= m_nCount) m_nTail = 0; } } template bool CQueue ::pop (T & ch) { if(isEmpty())return false; ch = m_pData[m_nHead++]; if(m_nHead >= m_nCount) m_nHead = 0; return true; } template bool CQueue ::isFull() { return ((m_nTail+1)%m_nCount == m_nHead); } template bool CQueue ::isEmpty() { return m_nHead == m_nTail; } #endif 另外有需要云服务器可以了解下创新互联scvps.cn,海内外云服务器15元起步,三天无理由+7*72小时售后在线,公司持有idc许可证,提供“云服务器、裸金属服务器、高防服务器、香港服务器、美国服务器、虚拟主机、免备案服务器”等云主机租用服务以及企业上云的综合解决方案,具有“安全稳定、简单易用、服务可用性高、性价比高”等特点与优势,专为企业上云打造定制,能够满足用户丰富、多元化的应用场景需求。
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