title: convert int to char* in standard C (without itoa)
body: <p>I have declared and initialized two variables as shown below:</p>
  
  <pre><code>int a=5;
  char* str;
  str = (char*)calloc(255, sizeof(char));
  </code></pre>
  
  <p>I want to convert the int to char* in standard C. I cannot use any conversion function from C++ such itoa.</p>
  
  <p>I am using Ubuntu 11.10</p>