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[Bug c++/50893] New: [C++0x] explicitly defaulted virtual destructor throw specification
- From: "jarrydb at cse dot unsw.edu.au" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 28 Oct 2011 06:23:56 +0000
- Subject: [Bug c++/50893] New: [C++0x] explicitly defaulted virtual destructor throw specification
- Auto-submitted: auto-generated
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50893
Bug #: 50893
Summary: [C++0x] explicitly defaulted virtual destructor throw
specification
Classification: Unclassified
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: jarrydb@cse.unsw.edu.au
The following code fails to compile:
class Base
{
public:
virtual ~Base() = default;
};
class Derived : public Base
{
public:
virtual ~Derived() = default;
};
g++ -std=gnu++0x except.cpp
except.cpp:10:11: error: looser throw specifier for âvirtual
Derived::~Derived()â
except.cpp:4:11: error: overriding âvirtual Base::~Base() noexcept (true)â
I think, according to 15.4.14, that Derived should, by default, have the same
exception specification as Base, ie. noexcept(true). Therefore, this code
should compile.
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/home/jarrydb/current/soft/install-latest/libexec/gcc/x86_64-unknown-linux-gnu/4.7.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: /home/jarrydb/current/soft/src/gcc-git/configure
--prefix=/home/jarrydb/current/soft/install-latest --disable-multilib
--enable-languages=c,c++
Thread model: posix
gcc version 4.7.0 20111027 (experimental) (GCC)