On Wed, Dec 10, 2008 at 5:44 PM, Дмитрий Дьяченко <[EMAIL PROTECTED]> wrote: > g++-current generates messages which > 1) contains compiler generated symbols > 2) refers to gcc internal header (stl_tree.h) > > [EMAIL PROTECTED] gcc_err]# g++ -Wall -c -O3 test.cpp > test.cpp: In member function 'void > test::bar(std::_List_iterator<KeyPairPtr<int, int> >&)': > test.cpp:14: warning: dereferencing pointer '__x.13' does break > strict-aliasing rules > /usr/local/gcc_current/lib/gcc/i686-pc-linux-gnu/4.4.0/include/c++/bits/stl_tree.h:530: > note: initialized from here > test.cpp:14: warning: dereferencing pointer '__x.13' does break > strict-aliasing rules > /usr/local/gcc_current/lib/gcc/i686-pc-linux-gnu/4.4.0/include/c++/bits/stl_tree.h:530: > note: initialized from here
First of all, please file a bugreport about this. Second - wrt 1) - what would you like to see? Sth like 'dereferencing pointer expression does break ...'? (we cannot reliably re-construct the original source expression here). For 2), the system header mechanism should have fixed it unless, of course, the whole thing is inlined (and maybe inform () isn't aware of system-headers either). But I think it is useful to know where it comes from rather than just seeing the warning. Richard.
