基于list循环删除元素,迭代器失效的问题详解

#include<iostream>#include<list>using namespace std;int main(){	list<int *> l;	for(int i=1;i<=100;i++)	{		int* temp=new int;		*temp=i;		l.push_back(temp);	}	list<int *>::iterator it=l.begin();	list<int *>::iterator ittemp=l.begin();	for(;it!=l.end();++it)	{		cout<<*(*it)<<endl;	}	it=l.begin();	ittemp=l.begin();	for(;it!=l.end();)	{		ittemp=it;		++it;		delete (*ittemp);		l.erase(ittemp);	}	cout<<l.size()<<endl;	return 0;}