c语言指针-C-Test-10-14.rar

#define _CRT_SECURE_NO_WARNINGS 1 #include"contact.h" #include<stdio.h> #include<string.h> #include<stdlib.h> //初始化通讯录函数 void InitalContact(struct contact* ps) { ps->sum = 0; ps->capacity = 4; ps->ContactArr = (int*)malloc(SIZE*(sizeof(int))); } //尾部添加数字 void ContactEndAdd(struct contact* ps) { //进行判断,当空间不够时需要扩容 int* Newcontact; if (ps->capacity == ps->sum) { Newcontact = (int*)realloc(ps->ContactArr, ps->capacity * 2); if (Newcontact == NULL) { printf("扩容错误\n"); exit(-1); } ps->ContactArr = Newcontact; ps->capacity = ps->capacity * 2; } scanf("%d", &ps->ContactArr[ps->sum]); ps->sum++; } //打印通讯录数字 void PrintContact(struct contact* ps) { for (int i = 0; i < ps->sum; i++) { printf("%d ", ps->ContactArr[i]); } printf("\n"); } //尾部删减数字 void ContactEndDelete(struct contact* ps) { if (0 == ps->sum) { printf("数组为空\n"); return; } ps->sum--; } //头部添加数字 void HeadContactAdd(struct contact* ps) { //进行判断,当空间不够时需要扩容 if (ps->capacity == ps->sum) { int* Newcontact = (int*)realloc(ps->ContactArr, ps->capacity * 2); if (Newcontact == NULL) { printf("扩容错误\n"); exit(-1); } ps->ContactArr = Newcontact; ps->capacity = ps->capacity * 2; } for (int i = ps->sum - 1; i >= 0; i--) { ps->ContactArr[i + 1] = ps->ContactArr[i]; } scanf("%d", &ps->ContactArr[0]); ps->sum++; } //头部删除数字 void HeadContactDelete(struct contact* ps) { for (int i = 1; i < ps->sum; i++) { ps->ContactArr[i - 1] = ps->ContactArr[i]; } } //退出此程序 void ExitContact(struct contact* ps) { //memset(ps->ContactArr, 0, sizeof(int)*ps->sum); ps->capacity = 0; ps->sum = 0; free(ps->ContactArr); ps->ContactArr = NULL; }