Internal compiler error

[Peter Ludemann]

gcc version egcs-2.91.60 19981201 (egcs-1.1.1 release)
SunOS wistaria 5.5.1 Generic_103640-12 sun4u sparc SUNW,Ultra-1
g++ -Wall -c zzz.cc

And here's zzz.cc:

#include <string>
#include <map>

template < class Type = int, Type Init = 0 >
class InitializedNumber {

public:

  InitializedNumber(const Type& init = Init) : value(init) { }

  operator const Type& () const { return value; }

  operator Type& () { return value; }

private:

  Type value;
}

typedef std::map < std::string, InitializedNumber < unsigned int, 0 > > Counter;