libstdc++

In a Xcode project which I currently work on, I am using C++11 with Apple LLVM 4.2 (clang) compiler, and using libstdc++ as my standard library, because I am using a library (NTL) which was not compiled with libc++ and so I must use libstdc++. When writing the following code: #include <regex> int main() { return 0; } It doesn't compile, by saying: 'regex' file not found And so I can't use any C++11 library with my libstdc++ (Tried <mutex> , <thread> aswell). Another I tried to take is to recompile NTL with cc and libc++, but that doesn't seem much to work. The following is some of the errors

After upgrading to XCode 5 using std::function with std::bind appears to be generating EXC_BAD_ACCESS exceptions. It looks as if the __base pointer inside the implementation of std::function ends up being null, resulting in the bad access, but I'm not clear on why that would be the case. Does anyone have an insight into either what I'm doing wrong? Here is sample code that illustrates the problem. struct A { void foo(bool b) { std::cout << b << std::endl; } void go() { // ok auto a = std::bind(&A::foo, this, std::placeholders::_1); a(true); // ok std::function<void(A*, bool)> b = std::bind(&A:

I am using icpc (non optional) and I am compiling with -std=c++0x so I can use lambas. However when I do so it creates havok with gcc stdlib with features that one supports that the other doesn't. I have tried defining __GXX_EXPERIMENTAL_CXX0X__ but that didn't help. So ideally what I am asking for is the ability to use the c++0x language features with the C++03 stdlib. gcc 4.6 icc 12.1] EDIT example of error: /usr/include/c++/4.6.2/type_traits(74): error: identifier "constexpr" is undefined static constexpr _Tp value = __v; ^ /usr/include/c++/4.6.2/type_traits(74): error: expected a ";"