Re: [C++ Patch] Fix 11553 (duplicated friend specifier)

[Scott Brumbaugh <scottb dot lists at verizon dot net>]

Hi,

Here is another patch for PR 11553 (duplicate friend specifier).  I have
reformatted the error function call to conform to the coding standards
after a comment on gcc bugzilla.  A test-case is appended to the end of
this file.  I have done make bootstrap and make check-g++ on
i686-pc-linux-gnu.


Thanks,

Scott Brumbaugh




2003-09-01  Scott Brumbaugh  <scottb.lists@verizon.net>

	PR C++/11553

	* parser.c (cp_parser_decl_specifier_seq): Add check for a
	duplicate friend decl-specifier.



Index: parser.c
===================================================================
RCS file: /cvsroot/gcc/gcc/gcc/cp/parser.c,v
retrieving revision 1.105
diff -c -3 -p -r1.105 parser.c
*** parser.c	27 Aug 2003 00:49:19 -0000	1.105
--- parser.c	1 Sep 2003 21:59:22 -0000
*************** cp_parser_decl_specifier_seq (cp_parser*
*** 6305,6311 ****
  	case RID_FRIEND:
  	  /* decl-specifier:
  	       friend  */
! 	  friend_p = true;
  	  /* The representation of the specifier is simply the
  	     appropriate TREE_IDENTIFIER node.  */
  	  decl_spec = token->value;
--- 6305,6314 ----
  	case RID_FRIEND:
  	  /* decl-specifier:
  	       friend  */
! 	  if (friend_p)
! 	    error ("duplicate `friend'");
! 	  else
! 	    friend_p = true;
  	  /* The representation of the specifier is simply the
  	     appropriate TREE_IDENTIFIER node.  */
  	  decl_spec = token->value;



// { dg-do compile }
//
// PR 11553 catch duplicate friend specifiers

struct S
{
	friend friend class C; // { dg-error "duplicate" }
};