find

 
//
// g++ -std=c++0x t1.cpp -o t1
//
#include <iostream>
#include <cstdlib>
#include <string>

int main(int argc, char ** argv)
{
  int i; 
  std::string a("guten tag"); 
  std::string b("tag"); 

  i = a.find( b); 
  if( i != std::string::npos){    
    std::cout << "find " << a << " and " << b << " i " << i << std::endl;
  }
  else{
    std::cout << "no match" << std::endl;
  }  
}