sizeofdoubleis8sizeofintis4sizeofis4//结构体大小sizeofstructis:88//结构体地址addressstructstu:113fbd4 addressstructstu.num:113fbd4 addressstructstu.name[64]:113fbd8 addressstructstu.name1:113fc18 addressstructstu.f:113fc24 addressstructstu.gae:113fc28//联合体大小sizeofunionis:56//联合体地址...
AI代码解释 ;.asm.global strcopystrcopy:;R0指向目的字符串;R1指向源字符串LDRBR2,[R1],#1;加载字字符并更新源字符串指针地址STRBR2,[R0],#1;存储字符并更新目的字符串指针地址CMPR2,#0;判断是否为字符串结尾BNEstrcopy;如果不是,程序跳转到strcopy继续循环MOVpc,lr;程序返回 代码语言:javascript 代码运行次数:0...
classTimerManager{public:TimerManager(){}Timer*addTimer(int timeout,std::function<void(void)>fun,void*args=NULL);voiddelTimer(Timer*timer);unsigned long longgetRecentTimeout();voidtakeAllTimeout();unsigned long longgetCurrentMillisecs();private:struct cmp{booloperator()(Timer*&lhs,Timer*&rhs)...
/* 泛型里面用 char* 替代 string 以及 map 插入时排序自定义 */ struct cmp { bool operator()(const char* s1,const char* s2) const { return strcmp(s1,s2)<0; // default:map 根据 key 排序(字典序) } }; map<char*,int,cmp> mp; mp.clear(); char rr[100],rr1[100]; rr1[0]=rr[...
typedef struct stu { //char name; int age; float weight; double hight; }stu; int cmp_by_age(const void*e1, const void*e2) { return (int)(((stu*)e1)->weight - ((stu*)e2)->weight); } int main() { stu class1[3] = { {17,185.5,190.8}, {16,160.9,200.7}, {18,120.3,15...
int cmp_char(const void* _a , const void* _b) //参数格式固定 { char* a = (char*)_a; //强制类型转换 char* b = (char*)_b; return *a - *b; } qsort(word,100,sizeof(word[0]),cmp_char); 1. 2. 3. 4. 5. 6. ...
1#include<stdio.h>2#include<string.h>3#include<stdlib.h>4#include<math.h>5#include<ctype.h>6/*定义一个结构体*/7typedefstructStu{8charname[100];9charsex[10];10intage;11intscore;12}stu;13/*定义排序(回调)函数cmp:14返回类型必须是int;15两个参数的类型必须都是const void *;16如果是升序...
int cmp_name(struct student s1, struct student s2){ return strcmp(s1.name, s2.name); } int cmp_age(struct student s1, struct student s2){ return s1.age - s2.age; } void main(){ struct student stu[] = {{'Tom', 18, 80.5}, {'Jack', 19, 85.5}, {'Mary', 17, 90.0}}; in...
typedef struct PeoInfo{char name[MAX_NAME];int age;char sex[MAX_SEX];char tele[MAX_TELE];char addr[MAX_ADDR];}PeoInfo;typedef struct Contact{PeoInfo data[MAX];int sz;}Contact; 那我们动态版本的怎么写呢?我们让它满足几点要求: 1.默认能够存放3个人的信息 ...
int mystructcmp(const void *p1, const void *p2) { const struct mystruct *sp1 = p1; const struct mystruct *sp2 = p2; /* 现在比较 sp1->whatever 和 sp2-> ... */ } 从一般指针到结构 mystruct 指针的转换过程发生在 sp1 = p1 和 sp2 = p2 的初始化中; 由于 p1 和 p2 都是 void 指...