C++ 0X 新特性实例（比较常用的）（转）-白红宇

C++ 0X 新特性实例（比较常用的）（转）

阅读量：5816 次

发布时间：2019-06-18

本文共 1620 字，大约阅读时间需要 5 分钟。

转自：

//array#include 
     
      void Foo1(){    array
      
        a;    generate(a.begin(), a.end(), rand);    sort(a.begin(), a.end());    for (auto n:a)    {        cout<
       
        <<" ";    }    cout<<"sizeof(a) = "<
        
         <

//regex#include 
     
      void Foo2(){    if( regex_match("Hello World!", regex("Hello World!")) )    {        cout<<"Math!"<

//thread#include 
     
      void Foo3(){    thread t1([]    {        for (int i = 0; i < 10; i++)        {            cout<<"t1:"<
      <

//future  (暂时没理解)#include 
     
      int Test(int a, int b){    cout<<"Test("<
      <<","<<<")"<

f1 = async(Test,1,1); cout<<"f1"<

f2 = async(Test,2,2); cout<<"f2"<

f3 = async(Test,3,3); cout<<"f3"<

//enum classvoid Foo5(){#define MAKE_STR(s) #s        enum class Type    {        I = 0,        II,        III,        IV,        V    };    if( 4==(int)Type::V )        cout<
     
      <

//auto#include 
     
      void Foo6(){    auto a = 10;    cout<
      <

vec; for(int i = 0; i<10; i++) { vec.push_back(i); } for(auto i = vec.cbegin(); i!=vec.cend(); i++) { cout<<*i<

int{ return c+=i; }; cout<

//lambda#include 
     
      void Foo7(){    int a = 0;    int b = 10;    function
      
        pA = [&a,b](int i)->int{ return a+=b+i; };    cout<
       
        <
        
          pB = [&a,b](int i)->int{ return b+=a+i; };     //compile error : 'b': a by-value capture cannot be modified in a non-mutable lambda    cout<
         <
          
           int{ return pA(i); }; cout<
           
            <