title: I want to see if a character is present in a string
body: <p>I'm programming a program in C++ (typical game) in which you need to guess a letter and it will check if it is present in a string.</p>
  
  <p>For example</p>
  
  <p>Secret String: I like to program.</p>
  
  <p>Guess1: 'a'</p>
  
  <p>Display: . .... .. .....a...</p>
  
  <p>Etc.</p>
  
  <p>But i don't know how to see if a character is in this secret string.</p>
  
  <p>I'm using std::string (obligatory)</p>
  
  <p>Any help is appreciated!</p>