enable_if requres an integral constant wrapper.  There is a variant called enable_if_c which allows you to skip that in this case (automatically wraps it, I believe, like mpl::vector_c):


#include <boost/mpl/and.hpp>
#include <boost/type_traits/is_same.hpp>
#include <boost/utility/enable_if.hpp>

using namespace boost;

struct foo
{
  void bla()
  {
    read_data_24<int, int>();
  }

  template< typename T1, typename T2>
  void read_data_24(typename enable_if_c< is_same< T1, T2 >::value>::type* = 0)
  {
      int i = 9;
  }
};

int main(int argc, char* argv[])
{
    return 0;
}


HTH,
Nate