Fails on 4.1.2 and 3.4.2. Works on 3.2.2 When compiling the following code:
template <class _T> class A { protected: int b; }; template <class _T> class B : public A<_T> { public: void test_ok() { this->b = 17; } void test_fail() { b = 17; } }; The method test_ok compiles OK but the test_fails gets the following error: bug-gcc.cpp: In member function void B<_T>::test_fail(): bug-gcc.cpp:18: error: b was not declared in this scope The full command line is: gcc -v -save-temps bug-gcc.cpp Using built-in specs. Target: i686-pc-linux-gnu Configured with: ../configure Thread model: posix gcc version 4.1.2 /usr/local/libexec/gcc/i686-pc-linux-gnu/4.1.2/cc1plus -E -quiet -v -D_GNU_SOURCE bug-gcc.cpp -mtune=pentiumpro -fpch-preprocess -o bug-gcc.ii ignoring nonexistent directory "NONE/include" ignoring nonexistent directory "/usr/local/lib/gcc/i686-pc-linux-gnu/4.1.2/../../../../i686-pc-linux-gnu/include" #include "..." search starts here: #include <...> search starts here: /usr/local/lib/gcc/i686-pc-linux-gnu/4.1.2/../../../../include/c++/4.1.2 /usr/local/lib/gcc/i686-pc-linux-gnu/4.1.2/../../../../include/c++/4.1.2/i686-pc-linux-gnu /usr/local/lib/gcc/i686-pc-linux-gnu/4.1.2/../../../../include/c++/4.1.2/backward /usr/local/include /usr/local/lib/gcc/i686-pc-linux-gnu/4.1.2/include /usr/include End of search list. /usr/local/libexec/gcc/i686-pc-linux-gnu/4.1.2/cc1plus -fpreprocessed bug-gcc.ii -quiet -dumpbase bug-gcc.cpp -mtune=pentiumpro -auxbase bug-gcc -version -o bug-gcc.s GNU C++ version 4.1.2 (i686-pc-linux-gnu) compiled by GNU C version 4.1.2. GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 Compiler executable checksum: 8b499b4064e5e336c763bb8a820d240c bug-gcc.cpp: In member function void B<_T>::test_fail(): bug-gcc.cpp:18: error: b was not declared in this scope Many thanks for your help. Edu. -- Summary: <member> b was not declared in this scope in inherited template class Product: gcc Version: 4.1.2 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: edufer at gmail dot com GCC host triplet: i686-pc-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31525