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template<class InputIterator,class T>  InputIterator find (InputIterator first, InputIterator last,const T& val){while (first!=last) {if (*first==val)return first;    ++first;  }return last;}

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// find example#include <iostream>// std::cout#include <algorithm>// std::find#include <vector>// std::vectorint main () {// using std::find with array and pointer:int myints[] = { 10, 20, 30, 40 };int * p;  p = std::find (myints, myints+4, 30);if (p != myints+4)    std::cout <<"Element found in myints: " << *p <<'\n';else    std::cout <<"Element not found in myints\n";// using std::find with vector and iterator:  std::vector<int> myvector (myints,myints+4);  std::vector<int>::iterator it;  it = find (myvector.begin(), myvector.end(), 30);if (it != myvector.end())    std::cout <<"Element found in myvector: " << *it <<'\n';else    std::cout <<"Element not found in myvector\n";return 0;}

Element found in myints: 30Element found in myvector: 30