title: calling a global function with a class method with the same declaration
body: <p>I would like to wrap a C library within a C++ class. For my C++ class I also would like to have the same declaration used by these C function: is it possible to do that?</p>
  
  <p>If for example I have the case below how would it be possible to distinguish the C-function from the C++ one? I would like to call the C one off course.</p>
  
  <pre><code> extern int my_foo( int val ); //
  
   class MyClass{
      public:
      int my_foo( int val ){
             // what to write here to use
             // the C functions?
             // If I call my_foo(val) it will call
             // the class function not the global one
      }
   }
  </code></pre>