[Bug c++/19063] New: [3.4/4.0 regresion] ICE on invalid template parameter

[Bug c++/19063] New: [3.4/4.0 regresion] ICE on invalid template parameter

[reichelt at gcc dot gnu dot org]

The following testcase causes an ICE since gcc 3.4.0:

===================================
template<operator> struct A {};
===================================

PR13268B.cc:5: error: expected identifier before 'operator'
PR13268B.cc:5: error: declaration of 'operator>' as non-function
PR13268B.cc:5: internal compiler error: tree check: expected class
'declaration', have 'type' (void_type) in process_template_parm, at cp/pt.c:2318
Please submit a full bug report, [etc.]

The bug is similar to PR13268 in that grokdeclarator returns values that
the caller cannot handle gracefully.
But in this case we actually have a regression.

Btw, if an error occurs, grokdeclarator might be returning 0 (which should
probably be NULL_TREE), error_mark_node (which is not documented) or
void_type_node (even if the caller expects a declaration as in this bug)
or ...

Is this intended, or is some heavy cleanup required?

-- 
           Summary: [3.4/4.0 regresion] ICE on invalid template parameter
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Keywords: ice-on-invalid-code, error-recovery, monitored
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: reichelt at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19063

[Bug c++/19063] [3.4/4.0 regresion] ICE on invalid template parameter

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-12-17 23:20 -------
: Search converges between 2002-12-14-trunk (#159) and 2002-12-29-trunk (#160).

Confirmed.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |minor
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2004-12-17 23:20:38
               date|                            |
   Target Milestone|---                         |3.4.4


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19063

[Bug c++/19063] [3.4/4.0 regresion] ICE on invalid template parameter

[mmitchel at gcc dot gnu dot org]

------- Additional Comments From mmitchel at gcc dot gnu dot org  2004-12-21 20:59 -------
Working on a fix.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |mark at codesourcery dot com
                   |dot org                     |
             Status|NEW                         |ASSIGNED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19063

[Bug c++/19063] [3.4 regresion] ICE on invalid template parameter

[mmitchel at gcc dot gnu dot org]

------- Additional Comments From mmitchel at gcc dot gnu dot org  2004-12-22 03:39 -------
Fixed in GCC 4.0.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[3.4/4.0 regresion] ICE on  |[3.4 regresion] ICE on
                   |invalid template parameter  |invalid template parameter


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19063

[Bug c++/19063] [3.4 regresion] ICE on invalid template parameter

[mmitchel at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|3.4.4                       |3.4.5


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19063

[Bug c++/19063] [3.4 regresion] ICE on invalid template parameter

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-08-05 21:01 -------
Subject: Bug 19063

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	mmitchel@gcc.gnu.org	2005-08-05 21:01:47

Modified files:
	gcc/cp         : ChangeLog name-lookup.c 

Log message:
	* name-lookup.c (pushtag): Remove accidental commit from:
	2004-12-21  Mark Mitchell  <mark@codesourcery.com>
	PR c++/19063
	* decl.c (grokdeclarator): Return error_mark_node, not
	void_type_node, to indicate errors.
	* parser.c (cp_parser_template_parameter_list): Robustify.
	(cp_parser_template_parameter): Likewise.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&r1=1.4839&r2=1.4840
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/name-lookup.c.diff?cvsroot=gcc&r1=1.133&r2=1.134



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19063

[Bug c++/19063] [3.4 regresion] ICE on invalid template parameter

[mmitchel at gcc dot gnu dot org]

------- Additional Comments From mmitchel at gcc dot gnu dot org  2005-08-05 21:04 -------
*** Bug 13268 has been marked as a duplicate of this bug. ***

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |fw at deneb dot enyo dot de


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19063