explicit71.c

gcc-you can use this code to learn something about gcc, and inquire further into linux,

// Build don't link:
// by Alexandre Oliva <[e-mail]>
// Based on a testcase by Reid M. Pinchback <[e-mail]>
// According to the C++ Standard [temp.expl.spec]/17-18, explicit
// specializations are only valid if all enclosing template classes
// of the specialized template are fully specialized too

template <class X> 
class bug {
  template <class Y> 
  class a {}; 
};
template <class X> 
template <>			// ERROR - invalid specialization
class bug<X>::a<char> {};	// ERROR -  ""