title: How to write pragmas in C
body: <p>I know that <code>#pragmas</code> are compiler directives which are used to provide additional information to the compiler. My question is that, I need to write some  <code>#pragmas</code> for my project. i.e, I need to invoke some particular code when there are some particular pattern in code. Can some one throw light on this ...? </p>
  
  <p>Thanks in advance..!</p>