fillの使い方

template < class ForwardIterator, class T >
  void fill ( ForwardIterator first, ForwardIterator last, const T& value );
#include<iostream>
#include<algorithm>
#include<vector>
using namespace std;
struct info{
	int key;
	int value;
	info(int key,int value):key(key),value(value){}
	info():key(0),value(0){}
	bool operator=(info temp){
	key=temp.key;
	value=temp.value;
	}
};
int main(){
	vector<info>vec(2);
	info A(1,2);
	fill(vec.begin(),vec.end(),A);
	vector<info>::iterator it;
	for(it=vec.begin();it!=vec.end();it++)
		cout<<(*it).key<<"\t"<<(*it).value<<endl;

}
   
<algorithm>
   
Fill range with value 
Sets value to all elements in the range [first,last). 
The behavior of this function template is equivalent to:  
template < class ForwardIterator, class T >
  void fill ( ForwardIterator first, ForwardIterator last, const T& value )
{
  while (first != last)  *first++ = value;
}
   
Parameters
  
first, last 
Forward iterators to the initial and final positions in a sequence. The range affected is  [first,last), which contains all the elements between  
first and  
last, including the element pointed by  
first but not the element pointed by  
last. 
value 
Value to be used to fill the range. 
Return value
  none