Syntax error in template class with lambda expression

Question

I have the following simplified scenario:

template< typename T>
struct A
{
  A() : action_( [&]( const T& t) { })
  {}

private:
   boost::function< void( const T& )> action_;
};

When compiling with Visual C ++ 2010, this gives me a syntax error when building the _ action:

1>test.cpp(16): error C2059: syntax error : ')'
1>          test.cpp(23) : see reference to class template instantiation A<T>' being compiled

It is strange that in the same example, without a template parameter, it compiles just fine:

struct A
{
  A() : action_( [&]( const int& t) { })
  {}

private:
  boost::function< void( const int& )> action_;
};

I know that one way to solve this problem is to move the initialization action_ to the constructor body instead of the initialization list, as in the code below:

template< typename T>
struct A
{
  A()
  {
    action_ = [&]( const T& t) { };
  }

private:
  boost::function< void( const T& )> action_;
};

... but I want to avoid this workaround.

Has anyone encountered such a situation? Is there any explanation / solution for this so-called syntax error?

Answer 1

lambdas Visual ++ 2010? .

, , situtation... ?