extended_errorcheck

Controls the issuing of warning messages for possible unintended logical errors.

  #pragma extended_errorcheck on | off | reset  

If you enable this pragma, the compiler generates a warning message (not an error) if it encounters some common programming errors:

• An integer or floating-point value assigned to an enum type. The following listing shows an example.
  Listing: Assigning to an Enumerated Type

  enum Day { Sunday, Monday, Tuesday, Wednesday, 
             Thursday, Friday, Saturday } d;
  
  d = 5; /* WARNING */
  
  d = Monday; /* OK */
  
  d = (Day)3; /* OK */
  

• An empty return statement in a function that is not declared void. For example, the following listing results in a warning message.
  Listing: A non-void function with an empty return statement

  int MyInit(void)
  {
  
    int err = GetMyResources();
  
    if (err != -1)
  
    {
  
      err = GetMoreResources();
  
    }
  
    return; /* WARNING: empty return statement */
  
  }
  

  The following listing shows how to prevent this warning message.

  Listing: A non-void function with a proper return statement

  int MyInit(void)
  {
  
    int err = GetMyResources();
  
    if (err != -1)
  
    {
  
      err = GetMoreResources();
  
    }
  
    return err; /* OK */
  
  }