stl学习记录(2)

#include <iostream>

#include <utility>

#include <tuple>

#include <complex>

#include <string>



using namespace std;



// 代码 改编自 C++标准库——自学教程与参考手册  英文第二版



//====================================

// tuple io

template <int IDX,int MAX,typename... Args>

struct PRINT_TUPLE{

    static void print(ostream& strm, const tuple<Args...>& t){

        strm << get<IDX>(t) << (IDX + 1 == MAX ? "" : ",");

        PRINT_TUPLE<IDX + 1, MAX, Args...>::print(strm,t);

    }

};



template <int MAX,typename... Args>

struct PRINT_TUPLE<MAX, MAX, Args...>{

    static void print(ostream& strm, const tuple<Args...>& t){

    }

};



template <typename... Args>

ostream& operator << (ostream& strm,

    tuple<Args...>& t)

{

    strm << "[";

    PRINT_TUPLE<0, sizeof...(Args), Args...>::print(strm,t);

    return strm << "]";

}





//====================================





class Foo{

public:

    Foo(tuple<int, float>){

        cout << "Foo::Foo(tuple)" << endl;

    }



    template <typename... Args>

    Foo(Args... args){

        cout << "Foo::Foo(atgs...)" << endl;

    }

};



int _tmain(int argc, _TCHAR* argv[])

{

    // cpp11 后 一些新语法 在STL中得使用

    tuple<int, double>t(1,2.22);



    pair<int, Foo>p1(42, t);



    pair<int, Foo>p2(piecewise_construct, make_tuple(42), t);



    // 使用 ref() 表示对变量的引用

    int i = 0;

    auto p = make_pair(ref(i), ref(i)); // 创建 pair<int&,int&>

    ++p.first;

    ++p.second;

    cout << "i = " << i << endl;



    // tie() 演示

    pair<char, char> q = make_pair('c','b');

    char c;

    tie(ignore, c) = q; // char c == 'b'



    //

    tuple<string, int, int, complex<double>> tt;

    tuple<int, double,string> t1(41,6.3,"nico");



    cout << get<0>(t1) << " ";

    cout << get<1>(t1) << " ";

    cout << get<2>(t1) << " ";

    cout << endl;



    auto t2 = make_tuple(22,44,"nico");

    get<1>(t1) = get<1>(t2);

    t1 = t2;

    

    // tuple io

    tuple <int, double, string> iot(77, 1.1, "more light");

    cout << "io: " << iot << endl;



    return 0;

}

cpp11stl的例子 VS2013下编译 通过

 

 

stl序列容器例子 
cpp11  vs2013下编译 通过

#include <memory>

#include <vector>

#include <array>

#include <string>

#include <list>

#include <iostream>

#include <functional>

#include <forward_list>



using namespace std;





int _tmain(int argc, _TCHAR* argv[])

{

    array<string, 5> arrcoll = { "hello", "world" };

    for (auto elem : arrcoll)

    {

        cout << elem << ' ';

    }

    cout << endl;



    list<char> listcoll;

    for (char c = 'a'; c <= 'z'; ++c)

    {

        listcoll.push_back(c);

    }



    for (auto elem : listcoll)

    {

        cout << elem << ' ';

    }

    cout << endl;





    //createforward-listcontainerforsomeprimenumbers

    forward_list<long> coll = { 2, 3, 5, 7, 11, 13, 17 };

    //resizetwotimes

    //-note:poorperformance

    coll.resize(9);

    coll.resize(10, 99);

    //printallelements:

    for (auto elem : coll) {

        cout << elem << ' ';

    }

    cout << endl;





    return 0;

}