BUG: C2954 Error When Using Class Template as Template-Parameter

• The C/C++ Compiler (CL.EXE), included with:
  • Microsoft Visual C++, 32-bit Editions, versions 5.0, 6.0

SYMPTOMS

The following error message may appear if you try to use a class template as a template-parameter:

error C2954: template definitions cannot nest
error C2951: template declarations are only permitted at global or namespace scope
error C2226: syntax error : unexpected type 'C'
error C2143: syntax error : missing '>' before '{'
error C2059: syntax error : '<end Parse>'

CAUSE

The compiler does not support template template-parameters as specified in the C++ Standard.

STATUS

Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article.

MORE INFORMATION

Steps to Reproduce Behavior

//test.cpp
// compiler option needed: none

template<class T> class myarray { /* ... */ };
template<class K, class V, template<class T> class C = myarray>
class Map {
	C<K> key;
	C<V> value;
	};
 

Additional query words:

Keywords : kbCompiler kbCPPonly kbLangCPP kbVC kbVC500 kbVC500bug kbVC600 kbVC600bug
Version : winnt:5.0,6.0
Platform : winnt
Issue type : kbbug