[Bug c++/18517] Throwing not-yet-defined exceptions from templated function kills GCC

["reichelt at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Additional Comments From reichelt at gcc dot gnu dot org  2005-01-18 20:32 -------
Here's a reduced testcase that uses all RAM:

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

struct A
{
    virtual ~A();
};

void bar()
{
    foo<0>();
}
=============================

Commenting out the virtual destructor gives the ICE in c_expand_expr.

I don't think we can rate this as a regression:
All released version from 2.95.3 till 3.3.5 ICE on that code.
The couple of snapshots from Phil's regression hunter that do
not ICE issue a very strange error message:

input.cc: In function `void foo() [with int  = 0]':
input.cc:12:   instantiated from here
input.cc:3: non-lvalue in unary `&'

To me that looks like garbage found in memery. A more elaborate example
can probably turn this into an ICE.

So closing as fixed in gcc 3.4.0.


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |reichelt at gcc dot gnu dot
                   |                            |org
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED
            Summary|[3.3 Regression] throwing   |Throwing not-yet-defined
                   |not-yet-defined exceptions  |exceptions from templated
                   |from templated function     |function kills GCC
                   |kills GCC                   |
   Target Milestone|3.3.6                       |3.4.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18517