C语言实现循环队列

#include "test.h"

void test();

ElementType dataArray[] = {
    {1,"侠客行"},
    {2,"将进酒"},
    {3,"神来之笔"},
    {4,"青莲剑歌"}
};

int main()
{
    test();
    return 0;
}


void test(){
    SeqQueue seq;
    InitSeqQueue(& seq);
    for (int i=0;i < 4;i++){
        OfferSeqQueue(&seq,dataArray[i]);
    }
    for (int i=0;i < seq.length;i++){
        printf("%dt%s.n",seq.data[i].id,seq.data[i].name);
    }
    ElementType element;
    printf("n");
    PollSeqQueue(&seq,&element);
    printf("出队元素：%dt%s.nn",element.id,element.name);
    for (int i=seq.front;i < seq.rear;i++){
        printf("%dt%s.n",seq.data[i].id,seq.data[i].name);
    }
}

#ifndef TEST_H_INCLUDED
#define TEST_H_INCLUDED

#include 
#include 

#define MAX_SIZE 10
#define STATE_OK 1
#define STATE_FAILD -1
#define TRUE 2
#define FALSE 0

typedef int State;  //给整形起别名，专门用来表示状态

typedef struct {
    int id;
    char * name;
}ElementType;

//循环队列结构
typedef struct {
    ElementType data[MAX_SIZE];
    int front;
    int rear;
    int length;
}SeqQueue;

//初始化队列
void InitSeqQueue(SeqQueue * seqqueue);

State IsEmpety(SeqQueue * seqqueue);

State IsFull(SeqQueue * seqqueue);

//入队
State OfferSeqQueue(SeqQueue * seqqueue,ElementType element);

//出队
State PollSeqQueue(SeqQueue * seqqueue,ElementType * element);

#endif // TEST_H_INCLUDED

#include "test.h"

//初始化
void InitSeqQueue(SeqQueue * seqqueue){
    if (seqqueue == NULL){
        seqqueue = (SeqQueue *)malloc(sizeof(SeqQueue));
    }
    seqqueue->length = 0;
    seqqueue->front = 0;
    seqqueue->rear = 0;
}

State IsEmpety(SeqQueue * seqqueue){
    return seqqueue->front == seqqueue->rear ? TRUE:FALSE;
}

State IsFull(SeqQueue * seqqueue){
    if (seqqueue->front == (seqqueue->rear + 1)%MAX_SIZE){
        return TRUE;
    }
    return FALSE;
}


//入队
State OfferSeqQueue(SeqQueue * seqqueue,ElementType element){
    if (IsFull(seqqueue)){
        return STATE_FAILD;
    }
    seqqueue->data[seqqueue->rear] = element;
    seqqueue->rear = (seqqueue->rear + 1) % MAX_SIZE;
    seqqueue->length++;
    return STATE_OK;
}


//出队
State PollSeqQueue(SeqQueue * seqqueue,ElementType * element){
    if (IsEmpety(seqqueue)){
        return STATE_FAILD;
    }
    *element = seqqueue->data[seqqueue->front];
    seqqueue->front = (seqqueue->front + 1) % MAX_SIZE;
    seqqueue->length--;
    return STATE_OK;
}