title: Find string in vector of strings case insensitive c++
body: <p>I have </p>
  
  <pre><code>std::vector&lt;std::string&gt; vec;
  std::string myString; 
  </code></pre>
  
  <p>and I need to find out if <code>myString</code> is in <code>vec</code> using <strong>case insensitive</strong> comaprisons.</p>
  
  <p>I know I can use </p>
  
  <pre><code>find(vec.begin(), vec.end(), myString) != vec.end())
  </code></pre>
  
  <p>to answer the question "is myString in vec?" but that will do case sensitive comparisons. I need case insensitive comparisons.</p>
  
  <p>The position is not important, I just want to know if myString is in vec or not.</p>