二元函数对象和二元谓词_二元谓词函数大小

#include <iostream>    
#include<string>    
#include <vector>    
#include <list>    
#include <set>    
#include <map>    
#include <algorithm>    
#include <functional>  
using namespace std;  
 
template<typename T>
class SumAdd
{
public:
	SumAdd()
	{
 
	}
	T operator()(const T &i,const T &j)
	{
		return i+j;
	}
protected:
private:
};
 
bool MyCompare(int i,int j)
{
	return i<j;
}
 
void showElement(int i)
{
	cout<<i<<" ";
}
void display()
{
	vector<int> v1;  
	v1.push_back(10);  
	v1.push_back(4);  
	v1.push_back(3);  
	v1.push_back(2);  
	v1.push_back(5);  
	v1.push_back(7);  
	v1.push_back(6);  
	v1.push_back(1);  
	vector<int> v2;  
	v2.push_back(1);  
	v2.push_back(2);  
	v2.push_back(3);  
	v2.push_back(4);  
	v2.push_back(5);  
	v2.push_back(6);  
	v2.push_back(7);  
	v2.push_back(10);  
	
	vector<int> v3(8);  
 
	vector<int> v4;  
	v4.push_back(10);  
	v4.push_back(4);  
	v4.push_back(3);  
	v4.push_back(2);  
	v4.push_back(5);  
	v4.push_back(7);  
	v4.push_back(6);  
	v4.push_back(1);  
	SumAdd<int> sumadd;
	/*
	template<class _InIt1,
	class _InIt2,
	class _OutIt,
	class _Fn2> inline
	_OutIt transform(_InIt1 _First1, _InIt1 _Last1,
	_InIt2 _First2, _OutIt _Dest, _Fn2 _Func)
	{	// transform [_First1, _Last1) and [_First2, ...) with _Func
	_DEBUG_RANGE(_First1, _Last1);
	_DEBUG_POINTER(_Dest);
	_DEBUG_POINTER(_Func);
	if (_First1 != _Last1)
	return (_Transform2(_Unchecked(_First1), _Unchecked(_Last1),
	_First2, _Dest, _Func,
	_Is_checked(_Dest)));
	return (_Dest);
	}
	*/
	//返回值是v3.end()
	vector<int>::iterator it = transform(v1.begin(),v1.end(),v2.begin(),v3.begin(),sumadd);
 
	cout<<*(--it)<<endl;
 
	for (it = v3.begin();it!=v3.end();it++)
	{
		cout<<*it<<" ";
	}
	cout<<"----------------"<<endl;
 
	//把运算结果保存在v1里
	vector<int>::iterator it2 = transform(v1.begin(),v1.end(),v2.begin(),v1.begin(),sumadd);
 
	cout<<*(--it2)<<endl;
 
	for (it2 = v1.begin();it2!=v1.end();it2++)
	{
		cout<<*it2<<" ";
	}
	
	cout<<endl;
	//排序v4
	cout<<"sort--------------"<<endl;
	sort(v4.begin(),v4.end(),MyCompare);
	//遍历
	for_each(v4.begin(),v4.end(),showElement);
}
int main()
{
	display();
	system("pause");
	return 0;
}