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[Bug c++/49045] [C++0x] unexpected "different exception specifier" error with noexcept
- From: "jason at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 18 May 2011 18:42:25 +0000
- Subject: [Bug c++/49045] [C++0x] unexpected "different exception specifier" error with noexcept
- Auto-submitted: auto-generated
- References: <bug-49045-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49045
--- Comment #5 from Jason Merrill <jason at gcc dot gnu.org> 2011-05-18 18:24:31 UTC ---
Or, rather:
template<typename _Tp>
void
swap(_Tp&, _Tp&);
template<class T> void __swap_dummy(T&& a,T&& b)
noexcept(noexcept(swap(a,b)));
template<typename _Tp, __SIZE_TYPE__ _Nm>
void
swap(_Tp (&__a)[_Nm], _Tp (&__b)[_Nm])
noexcept(noexcept(__swap_dummy(*__a, *__b)));
template<typename _Tp, __SIZE_TYPE__ _Nm>
void
swap(_Tp (&__a)[_Nm], _Tp (&__b)[_Nm])
noexcept(noexcept(__swap_dummy(*__a, *__b)))
{ swap(*__a,*__b); }
-----
__swap_dummy doesn't actually need a body, but it does need a
noexcept-specifier.