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Re: [patch] Fix PR c++/29363


No patch.


On 18/10/06, Lee Millward <lee.millward@codesourcery.com> wrote:
Hi,

The following testcase triggers a seg fault in instantiate_class_template:

template<int> void foo()
{
  throw A();
  struct A {} a;
}

template void foo<0>();

An appropiate error is issued for the "throw A();" line in
unqualified_fn_lookup_error but the broken identifier for "A" is still
returned back to the caller. Simply changing this to return
error_mark_node to indicate the identifier is invalid instead fixes
the problem which is what the attached patch does.

Bootstrapped and regression tested on i686-pc-linux-gnu, ok for mainline?

Cheers,
Lee.

:ADDPATCH c++:

cp/
2006-10-18  Lee Millward  <lee.millward@codesourcery.com>

        PR c++/29363
        * lex.c (unqualified_fn_lookup_error): Return error_mark_node
        rather than the broken identifier if no declaration for it is available.

testsuite/
2006-10-18  Lee Millward  <lee.millward@codesourcery.com>

        PR c++/29363
        * g++.dg/template/crash61.C: New test.



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