http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54808
Bug #: 54808 Summary: error: non-trivial conversion at assignment (with bit fields) Classification: Unclassified Product: gcc Version: 4.7.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ AssignedTo: unassig...@gcc.gnu.org ReportedBy: chg...@mail.ru Created attachment 28352 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28352 a.cpp, a.ii, a.s g++ -c -v a.cpp Using built-in specs. COLLECT_GCC=g++ Target: i586-suse-linux Configured with: ../configure --prefix=/usr --infodir=/usr/share/info --mandir=/usr/share/man --libdir=/usr/lib --libexecdir=/usr/lib --enable-languages=c,c++,objc,fortran,obj-c++,java,ada --enable-checking=release --with-gxx-include-dir=/usr/include/c++/4.7 --enable-ssp --disable-libssp --disable-libitm --disable-plugin --with-bugurl=http://bugs.opensuse.org/ --with-pkgversion='SUSE Linux' --disable-libgcj --disable-libmudflap --with-slibdir=/lib --with-system-zlib --enable-__cxa_atexit --enable-libstdcxx-allocator=new --disable-libstdcxx-pch --enable-version-specific-runtime-libs --enable-linker-build-id --program-suffix=-4.7 --enable-linux-futex --without-system-libunwind --with-arch-32=i586 --with-tune=generic --build=i586-suse-linux Thread model: posix gcc version 4.7.1 20120723 [gcc-4_7-branch revision 189773] (SUSE Linux) COLLECT_GCC_OPTIONS='-c' '-v' '-shared-libgcc' '-mtune=generic' '-march=i586' /usr/lib/gcc/i586-suse-linux/4.7/cc1plus -quiet -v -D_GNU_SOURCE a.cpp -quiet -dumpbase a.cpp -mtune=generic -march=i586 -auxbase a -version -o /tmp/ccWMxjpd.s GNU C++ (SUSE Linux) version 4.7.1 20120723 [gcc-4_7-branch revision 189773] (i586-suse-linux) compiled by GNU C version 4.7.1 20120723 [gcc-4_7-branch revision 189773], GMP version 5.0.5, MPFR version 3.1.0-p1, MPC version 0.8.2 GGC heuristics: --param ggc-min-expand=97 --param ggc-min-heapsize=126872 #include "..." search starts here: #include <...> search starts here: /usr/include/c++/4.7 /usr/include/c++/4.7/i586-suse-linux /usr/include/c++/4.7/backward /usr/lib/gcc/i586-suse-linux/4.7/include /usr/local/include /usr/lib/gcc/i586-suse-linux/4.7/include-fixed /usr/lib/gcc/i586-suse-linux/4.7/../../../../i586-suse-linux/include /usr/include End of search list. GNU C++ (SUSE Linux) version 4.7.1 20120723 [gcc-4_7-branch revision 189773] (i586-suse-linux) compiled by GNU C version 4.7.1 20120723 [gcc-4_7-branch revision 189773], GMP version 5.0.5, MPFR version 3.1.0-p1, MPC version 0.8.2 GGC heuristics: --param ggc-min-expand=97 --param ggc-min-heapsize=126872 Compiler executable checksum: 101098d25a1106630df7d70889b6eb44 a.cpp: In function ‘void f()’: a.cpp:5:6: error: non-trivial conversion at assignment <unnamed-signed:4> int a.D.1839 = 0; a.cpp:5: confused by earlier errors, bailing out Source code: struct A{ int a:3; int :4; }; void f() { A a={1}; }