Finding Values in a vector - C++ STL Algorithm

C++ examples for STL Algorithm:find

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Description

Finding Values in a vector

Demo Code

#include <iostream> 
#include <array> 
#include <vector> 
#include <ios> 


using namespace std;

int main(int argc, char *argv[])
{

  using MyVector = vector<int>;
  MyVector myVector = { 0, 1, 2 };//  ww w .java  2s .  co  m
  for (unsigned int i = 0; i < myVector.size(); ++i)
  {
    if (myVector[i] == 2)
    {
      cout << "Found: " << myVector[i]
        << " at position: " << i << endl;
    }
  }

  for (auto iter = myVector.begin(); iter != myVector.end(); ++iter)
  {
    if (*iter == 2)
    {
      cout << "Found: " << *iter << endl;
    }
  }

  for (auto& number : myVector)
  {
    if (number == 2)
    {
      cout << "Found : " << number << endl;
    }
  }

  MyVector::iterator found = find(myVector.begin(), myVector.end(), 2);
  if (found != myVector.end())
  {
    cout << "Found : " << *found << endl;
  }
  return 0;
}

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