std :: make_pair C ++ 11 + VS2013 =编译器错误

Question

I have such codee:

struct Foo {
  unsigned attr : 7;

  std::pair<char *, unsigned> f() {
      char *ch = nullptr;
      return std::make_pair(ch, static_cast<unsigned>(attr));
  }
};

MSVS2013 give me something like this error:

can not convert 'unsigned int' to 'unsigned int&'

While gcc 4.8 and clang 3.3 compile such code without errors.

Is this MSVS compiler bug? If so, where I should report it?

Answer 1

Compiles and works just fine in VS2010. Must be a bug. Report it to Microsoft Connect: https://connect.microsoft.com/VisualStudio