Use istream_iterator and find : find « STL Algorithms Non modifying sequence operations « C++ Tutorial






#include <iostream>        
#include <cassert>
#include <algorithm>
#include <list>
#include <iterator>
using namespace std;

int main()
{
  cout << "Type some characters, including an 'x' followed\n"
    << "by at least one nonwhite-space character: " << flush;

  istream_iterator<char> in(cin);
  istream_iterator<char> eos;
  find(in, eos, 'x');

  cout << "The first nonwhite-space character following\n"
       << "the first 'x' was '" << *(++in) << "'." << endl;

  return 0;
}
Type some characters, including an 'x' followed
by at least one nonwhite-space character: x is after y
The first nonwhite-space character following
the first 'x' was 'i'.








25.8.find
25.8.1.Use find to search an element in a container
25.8.2.find an element in a list
25.8.3.Find the maximum element in a range in a list
25.8.4.Locate first occurrence of a value in a vector
25.8.5.Using find with normal iteration
25.8.6.Demonstrating generic find algorithm with an array
25.8.7.Generic find algorithm: use find function to find an element in an array
25.8.8.Use find algorithm to find an element in a list
25.8.9.Use istream_iterator and find
25.8.10.Generic find algorithm with input iterators associated with io streams
25.8.11.Use assert to check the find method
25.8.12.Define == operator in order to use the find method
25.8.13.Find an Element and Its Position in a Vector
25.8.14.find a value in vector
25.8.15.Find empty string