c++ bind functional

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本文演示了如何在C++中使用std::bind进行函数绑定，并通过实例展示了绑定过程及std::function的应用。

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#include <algorithm>
#include <memory>
#include <functional>
#include <vector>
#include "Test.h"

using namespace std;

int test(int a, int b)
{
   cout << a << b << endl;
   return 10;
}

int main()
{
   //CTest test;
   //CTest *test = new CTest;
   //std::shared_ptr<CTest> test(new CTest);
   //std::unique_ptr<CTest>test(new CTest);

   //auto f = std::bind(&CTest::Show1, test,std::placeholders::_1,std::placeholders::_2);
   //auto f = std::bind(&CTest::Show1, std::ref(test), std::placeholders::_1, std::placeholders::_2);
   //f(10,20);

   //auto f = std::bind(test, 10, std::placeholders::_1);
   //f(20);

   /*
   std::vector<std::shared_ptr<CTest>> mVec;
   for (int i = 0; i < 10; ++i)
   {
       mVec.push_back( std::shared_ptr<CTest>(new CTest) );
   }


   for_each(begin(mVec), end(mVec), [](std::shared_ptr<CTest> pTest)
   {
       auto f = std::bind(&CTest::Show1, pTest, 10, std::placeholders::_1);
       f(20);
   }
   );


   for_each(mVec.begin(), mVec.end(), std::bind(&CTest::Show1, std::placeholders::_1, 10, 20));
   */

   std::function<int(int, int)> fu = std::bind(test, std::placeholders::_1, std::placeholders::_1);
   fu(10,20);

   system("pause");
   return 0;
}