libstdc++

Apologies, I understand questions very similar to this have been asked relatively often, although none of the solutions seem to work for me.When attempting to run any c++ code of a reasonable complexity, I get the above error. The full error message is: /main: relocation error: ./main: symbol _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC1Ev, version GLIBCXX_3.4.21 not defined in file libstdc++.so.6 with link time reference running another project, I get a very similar error: ./main: relocation error: ./main: symbol _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC1Ev, version

I have an application with STL objects used as part of the C++ interface for plug-in writers. I know the best option for compatibility would have been to use a C interface instead, but that's not currently feasible. I know that everything from GCC 3.4 to 4.8 in libstdc++ has been highly compatible in terms of ABI. So for example, if I compile with GCC 4.1, and a plug-in vendor writes code compiled with GCC 4.7, then barring corner cases all will be well on a platform with a libstdc++ version corresponding to GCC 4.7 or later, provided STL useage is internal to the .so only, and that the

Yes, this might be the third time you see this code, because I asked two other questions about it ( this and this ).. The code is fairly simple: #include <vector> int main() { std::vector<int> v; } Then I build and run it with Valgrind on Linux: g++ test.cc && valgrind ./a.out ==8511== Memcheck, a memory error detector ... ==8511== HEAP SUMMARY: ==8511== in use at exit: 72,704 bytes in 1 blocks ==8511== total heap usage: 1 allocs, 0 frees, 72,704 bytes allocated ==8511== ==8511== LEAK SUMMARY: ==8511== definitely lost: 0 bytes in 0 blocks ==8511== indirectly lost: 0 bytes in 0 blocks ==8511==

I'm trying to link the output of C++ using ld and not g++. I'm only doing this to learn how to do it, not for practical purposes, so please don't suggest just to do it with g++. Looking at this question , the person gets the same error when they run the ld command: $ ld test.o -o test.out ld: warning: cannot find entry symbol _start; defaulting to 00000000004000e8 test.o: In function `main': test.cpp:(.text+0x1c): undefined reference to `strcasecmp' test.cpp:(.text+0x23): undefined reference to `std::cout' test.cpp:(.text+0x28): undefined reference to `std::ostream::operator<<(int)' test.cpp:(

I've got a class with an atomic member variable: struct Foo { std::atomic<bool> bar; /* ... lots of other stuff, not relevant here ... */ Foo() : bar( false ) {} /* Trivial implementation fails in gcc 4.7 with: * error: use of deleted function ‘std::atomic<bool>::atomic(const td::atomic<bool>&)’ */ Foo( Foo&& other ) : bar( other.bar ) {} }; Foo f; Foo f2(std::move(f)); // use the move How should be move constructor look like? Gcc 4.7 doesn't like any of my attempts (like adding std::move() around the other.bar ) and the net is surprisingly quiet here... Since you're moving other , no one else

I have a problem concerning libstdc++.so . I installed a new version of gcc and tried to compile C++ code. The compiling worked, but when I try to execute the binary ( m5.opt is its name) I've got the following error: build/ALPHA_SE/m5.opt: /usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.9' not found (required by build/ALPHA_SE/m5.opt). Do I need to replace libstdc++.so ? And if so, where can I download the version I want? On the GCC-website they say libstdc++ is a part of gcc now. Details GCC: I had gcc 4.1.2 before, but I downloaded gcc 4.2.4. From the untarred gcc-directory I executed .