http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53371
Bug #: 53371 Summary: rvalue reference type as exception-declaration Classification: Unclassified Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ AssignedTo: unassig...@gcc.gnu.org ReportedBy: vexoc...@gmail.com Using built-in specs. COLLECT_GCC=g++-mp-4.7 COLLECT_LTO_WRAPPER=/opt/local/libexec/gcc/x86_64-apple-darwin10/4.7.0/lto-wrapper Target: x86_64-apple-darwin10 Configured with: ../gcc-4.7.0/configure --prefix=/opt/local --build=x86_64-apple-darwin10 --enable-languages=c,c++,objc,obj-c++,lto,fortran,java --libdir=/opt/local/lib/gcc47 --includedir=/opt/local/include/gcc47 --infodir=/opt/local/share/info --mandir=/opt/local/share/man --datarootdir=/opt/local/share/gcc-4.7 --with-libiconv-prefix=/opt/local --with-local-prefix=/opt/local --with-system-zlib --disable-nls --program-suffix=-mp-4.7 --with-gxx-include-dir=/opt/local/include/gcc47/c++/ --with-gmp=/opt/local --with-mpfr=/opt/local --with-mpc=/opt/local --with-ppl=/opt/local --with-cloog=/opt/local --enable-cloog-backend=isl --enable-stage1-checking --disable-multilib --enable-lto --with-as=/opt/local/bin/as --with-ld=/opt/local/bin/ld --with-ar=/opt/local/bin/ar --with-bugurl=https://trac.macports.org/newticket --with-pkgversion='MacPorts gcc47 4.7.0_3' Thread model: posix gcc version 4.7.0 (MacPorts gcc47 4.7.0_3) g++-mp-4.7 foo.cpp -o foo -std=c++11 The C++11 standard states "The exception-declaration shall not denote an incomplete type, an abstract class type, or an rvalue reference type." in section 15.3, however the attached code compiles. clang++-mp-3.0 foo.cpp -o foo -std=c++11 gives foo.cpp:8:19: error: cannot catch exceptions by rvalue reference } catch (A && a) { ^