title: Problems with cyrillic, search on string
body: <p>I have to write counter of symbols. If I'm looking for <code>s</code> in string, <code>count</code> is 3, but if I'm looking for Cyrillic (<code>н</code>), something wrong. I tried to look for <code>237</code> code. This code I found in ASCII table <a href="http://ascii.org.ru/ascii.pdf" rel="nofollow">http://ascii.org.ru/ascii.pdf</a>. </p>
  
  <p>How I can fix it? </p>
  
  <pre><code>#include &lt;stdio.h&gt;
  #include &lt;string.h&gt;
  
  int main () {
    char str[] = "This is a string. нннн";
    char * pch;
    int count = 0;
  
    pch = strchr(str, 's');
  
    while (pch != NULL) {
      count++;
      pch = strchr(pch + 1, 's');
    }
    printf("%i", count);
    return 0;
  }
  </code></pre>