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[Bug c++/27278] New: [4.0/4.1/4.2 regression] ICE with invalid operator declaration


The following invalid testcase causes an ICE since GCC 3.0:

===============================
int operator+(void,void);
===============================

bug.cc:1: error: '<anonymous>' has incomplete type
bug.cc:1: error: invalid use of 'void'
bug.cc:1: error: '<anonymous>' has incomplete type
bug.cc:1: error: invalid use of 'void'
bug.cc:1: internal compiler error: tree check: expected class 'type', have
'exceptional' (error_mark) in grok_op_properties, at cp/decl.c:9078
Please submit a full bug report, [etc.]

The ICE happens when grok_op_properties checks whether an argument of the
operator has class- or enum-type.

Testing a patch.


-- 
           Summary: [4.0/4.1/4.2 regression] ICE with invalid operator
                    declaration
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Keywords: ice-on-invalid-code, error-recovery, monitored
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: reichelt at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27278


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