QA·C Help - 3635

	3635	Function identifier used as a pointer without a preceding & operator.

Functions		REFERENCE - ISO:C90-6.2,2,1 Lvalues and Function Designators

This function name is not followed by parentheses and so, rather than being a function call, it is interpreted as an expression of pointer type. If this is the intended behaviour, it might be better to precede the function name with an "&" operator. This will not affect the meaning of the expression but it will make it explicit that the function name is not intended to generate a function call.

Message 3635 is generated whenever the name of a function is used without either a preceding & or following parentheses.

For example:


/*PRQA S 2017,2213,3132,3218,3227,3344,3408,3447,3602 ++*/

  extern int f1( int x );
  extern int f2( int x );
  extern int f3( int x );

  static int (* const ap1[3])(int x) =
  {
      &f1,
      &f2,
      f3                                /* Message 3635 */
  };

  extern void test(int n)
  {
      if ( f1 ) { }                     /* Message 3635 and 0428 */
      if ( f1 != ap1[ n ] ) { }         /* Message 3635 */
  }