http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46857
Summary: internal compiler error: Segmentation fault (in -std=c++0x mode) Product: gcc Version: 4.6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ AssignedTo: unassig...@gcc.gnu.org ReportedBy: g...@abeckmann.de The following piece of invalid code gives an ICE SIGSEGV when compiling in c++0x mode: ===== 8< ===== template < class > struct pair { : first () ===== >8 ===== $ g++-trunk -c -std=c++0x ice-SIGSEGV-cxx0x.min.ii ice-SIGSEGV-cxx0x.min.ii:6:8: error: there are no arguments to ‘first’ that depend on a template parameter, so a declaration of ‘first’ must be available [-fpermissive] ice-SIGSEGV-cxx0x.min.ii:6:8: note: (if you use ‘-fpermissive’, G++ will accept your code, but allowing the use of an undeclared name is deprecated) ice-SIGSEGV-cxx0x.min.ii:6:8: error: ISO C++ forbids declaration of ‘type name’ with no type [-fpermissive] ice-SIGSEGV-cxx0x.min.ii:6:8: internal compiler error: Segmentation fault Please submit a full bug report, $ g++-trunk -c ice-SIGSEGV-cxx0x.min.ii ice-SIGSEGV-cxx0x.min.ii:6:8: error: a function call cannot appear in a constant-expression ice-SIGSEGV-cxx0x.min.ii:6:8: error: ISO C++ forbids declaration of ‘type name’ with no type [-fpermissive] ice-SIGSEGV-cxx0x.min.ii:6:8: error: expected ‘;’ at end of member declaration ice-SIGSEGV-cxx0x.min.ii:6:8: error: expected ‘}’ at end of input ice-SIGSEGV-cxx0x.min.ii:6:8: error: expected ‘;’ after struct definition $ g++-4.5.x -c -std=c++0x ice-SIGSEGV-cxx0x.min.ii ice-SIGSEGV-cxx0x.min.ii:6:8: error: a function call cannot appear in a constant-expression ice-SIGSEGV-cxx0x.min.ii:6:8: error: ISO C++ forbids declaration of ‘type name’ with no type ice-SIGSEGV-cxx0x.min.ii:6:8: error: expected ‘;’ at end of input ice-SIGSEGV-cxx0x.min.ii:6:8: error: expected ‘;’ at end of input ice-SIGSEGV-cxx0x.min.ii:6:8: error: expected ‘}’ at end of input ice-SIGSEGV-cxx0x.min.ii:6:8: error: expected unqualified-id at end of input $ g++-trunk -v -c -std=c++0x ice-SIGSEGV-cxx0x.min.ii Using built-in specs. COLLECT_GCC=/opt/software/x86_64/gcc-trunk/bin/g++-trunk COLLECT_LTO_WRAPPER=/opt/software/x86_64/gcc-trunk/libexec/gcc/x86_64-unknown-linux-gnu/4.6.0/lto-wrapper Target: x86_64-unknown-linux-gnu Configured with: ../gcc-trunk/configure --prefix=/opt/software/x86_64/gcc-trunk --program-suffix=-trunk --enable-languages=c,c++ --enable-checking Thread model: posix gcc version 4.6.0 20101207 (experimental) (GCC) COLLECT_GCC_OPTIONS='-v' '-c' '-std=c++0x' '-shared-libgcc' '-mtune=generic' '-march=x86-64' /opt/software/x86_64/gcc-trunk/libexec/gcc/x86_64-unknown-linux-gnu/4.6.0/cc1plus -fpreprocessed ice-SIGSEGV-cxx0x.min.ii -quiet -dumpbase ice-SIGSEGV-cxx0x.min.ii -mtune=generic -march=x86-64 -auxbase ice-SIGSEGV-cxx0x.min -std=c++0x -version -o /tmp/ccK3LaxI.s GNU C++ (GCC) version 4.6.0 20101207 (experimental) (x86_64-unknown-linux-gnu) compiled by GNU C version 4.6.0 20101207 (experimental), GMP version 4.3.2, MPFR version 3.0.0-p3, MPC version 0.8.2 GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 GNU C++ (GCC) version 4.6.0 20101207 (experimental) (x86_64-unknown-linux-gnu) compiled by GNU C version 4.6.0 20101207 (experimental), GMP version 4.3.2, MPFR version 3.0.0-p3, MPC version 0.8.2 GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 Compiler executable checksum: 58dd45b357216c1e9d23aab2b8f87581 ice-SIGSEGV-cxx0x.min.ii:6:8: error: there are no arguments to ‘first’ that depend on a template parameter, so a declaration of ‘first’ must be available [-fpermissive] ice-SIGSEGV-cxx0x.min.ii:6:8: note: (if you use ‘-fpermissive’, G++ will accept your code, but allowing the use of an undeclared name is deprecated) ice-SIGSEGV-cxx0x.min.ii:6:8: error: ISO C++ forbids declaration of ‘type name’ with no type [-fpermissive] ice-SIGSEGV-cxx0x.min.ii:6:8: internal compiler error: Segmentation fault Please submit a full bug report,