On Thu, Jun 9, 2016 at 10:31 AM, 张江 <zhangjiang.d...@gmail.com> wrote:
> Hi,
>
> I got a problem when I tried to compile a program with libmesh. The errors
> are listed as below:
>
> In file included from /Users/xxx/opt/libmesh/include/libmesh/dof_map.h:24:
> In file included from
> /Users/xxx/opt/libmesh/include/libmesh/libmesh_common.h:59:
> */Users/xxx/opt/libmesh/include/libmesh/libmesh_exceptions.h:125:11: **error:
> **exception specification of overriding function is more lax than base
> version*
> virtual ~SolverException() libmesh_noexcept {};
> * ^*
> */Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/exception:95:13:
> note: *overridden virtual function is here
> virtual ~exception() _NOEXCEPT;
> * ^*
> In file included from /Users/xxx/code/anl-dlb/tests/exiomesh.cpp:3:
> In file included from /Users/xxx/opt/libmesh/include/libmesh/dof_map.h:24:
> In file included from
> /Users/xxx/opt/libmesh/include/libmesh/libmesh_common.h:59:
> */Users/xxx/opt/libmesh/include/libmesh/libmesh_exceptions.h:125:29: **error:
> **expected ';' at end of declaration list*
> virtual ~SolverException() libmesh_noexcept {};
> * ^*
> ;
> */Users/xxx/opt/libmesh/include/libmesh/libmesh_exceptions.h:130:24: **error:
> **exception specification of overriding function is more lax than base
> version*
> virtual const char * what() const libmesh_noexcept
> * ^*
> */Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/exception:96:25:
> note: *overridden virtual function is here
> virtual const char* what() const _NOEXCEPT;
> * ^*
>
> Is this error caused by the version of the compiler or anything else?
>
Hmm... can you look in build/include/libmesh_config.h, and see
whether LIBMESH_HAVE_CXX11_NOEXCEPT is defined?
It appears you are using the Clang compiler that comes with Xcode. What
version of OSX and Xcode are you using?
A possible temporary fix is to change the string "libmesh_noexcept" to
"throw()". The latter is the C++03 exception specification. Using
"noexcept" worked for the various compilers I use, but I did not double
check Xcode Clang...
--
John
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