#define TRUE        1

 #define FALSE        0

 #define OK            1

 #define ERROR        0

 #define OVER_FLOW    -2

 typedef int Status;

 typedef int ElemType;

 typedef ElemType *Triplet;

 Status init_triplet(Triplet &t, ElemType v1, ElemType v2, ElemType v3);

 //构造 Triplet t，并赋予3个元素的值为 v1，v2，v3

 Status destroy_triplet(Triplet &t);

 //销毁 Triplet t

 Status get(Triplet t, int i, ElemType &e);

 //用e返回t的第i个元素的值

 Status put(Triplet &t, int i, ElemType e);

 Status isAscending(Triplet t);

 Status isDescending(Triplet t);

 Status max(Triplet t, ElemType &e);

 Status min(Triplet t, ElemType &e);

 #include "stdafx.h"

 #include "triplet_head.h"

 #include <stdlib.h>

 #include <string.h>

 Status init_triplet(Triplet &t, ElemType v1, ElemType v2, ElemType v3)

 {

     t = (ElemType *)malloc(*sizeof(ElemType));

     if(!t) return OVER_FLOW;

     t[]=v1; t[]=v2; t[]=v3;

     return OK;

 }

 Status destroy_triplet(Triplet &t)

 {

     free(t);

     t=NULL;

     return OK;

 }

 Status get(Triplet t, int i, ElemType &e)

 {

     if(i<||i>) return ERROR;

     e=t[i-];

     return OK;

 }

 Status put(Triplet &t, int i, ElemType e)

 {

     if(i<||i>) return ERROR;

     t[i-]=e;

     return OK;

 }

 Status isAscending(Triplet t)

 {

     return t[]<=t[] && t[]<=t[];

 }

 Status max(Triplet t, ElemType &e)

 {

     e= (t[]>=t[])?(t[]>=t[]?t[]:t[]) : (t[]>=t[]?t[]:t[]);

     return OK;

 }

 // Triplet.cpp : Defines the entry point for the console application.

 //

 #include "stdafx.h"

 #include "triplet_impl.cpp"

 int main()

 {

     //初始化

     Triplet t;

     init_triplet(t, ,,);

     //获取第3个元素

     ElemType e;

     get(t,,e);

     printf("e=%d\n",e);

     //设置第2个元素

     put(t,,);

     get(t,,e);

     printf("e=%d\n",e);

     //判断是否 升序

     printf("isAscending=%d\n", isAscending(t));

     put(t,,);

     printf("isAscending=%d\n", isAscending(t));

     //取最大值

     max(t,e);

     printf("max=%d\n",e);

     return ;

 }