C++ primer English fourth edition exercise page 301

 

C++ primer fourth edition page301

Write a program to store each line from a file in a vector<string>. Now use an istringstream to read each line

from the vector a word at a time.

#include<iostream>
#include<string>
#include<vector>
#include<sstream>
using namespace std;

int main ()
...{
  vector<string> str;
  string s;
  while(getline(cin,s))
  ...{
    str.push_back(s);
  }
  
  string st;
  for(vector<string>::iterator iter=str.begin();iter!=str.end();++iter)
  ...{
    istringstream istr(*iter);
    while(istr>>st)
    ...{
        cout<<st<<endl;
    }
    
  }
  return 0;
}