Re: How to do explicit specialization of non-type template function

From:
"Victor Bazarov" <v.Abazarov@comAcast.net>
Newsgroups:
comp.lang.c++
Date:
Tue, 19 Feb 2008 11:10:13 -0500
Message-ID:
<fpev15$f6u$1@news.datemas.de>
Bill wrote:

I have a quetion how to specialization a non-type templat function, I
use VC++ 2005.

My code is:

#include "stdafx.h"


That's not a standard header. You might be better off leaning the
language without the use of precompiled headers, BTW.

enum VariableType
{
   enumASCII = 1,
   enumDOUBLE = 2,
   enumDURATION = 3,
   enumINTEGER = 4
};

template< VariableType >
struct HrtTypes{
};

template< size_t _size >
struct INTEGERS
{
   typedef signed char value_type;
   typedef signed char* pointer;
   typedef HrtTypes<enumINTEGER> TypeTrait;
   enum { size = _size };
};

template<typename T>
bool foo(T*, typename T::TypeTrait*);

//specializaton for INTEGERS<1>,<2>, ...<n>
template<typename T>
bool foo(T*, HrtTypes<enumINTEGER>*)
{
return true;
}
[..]


Sorry, you can't do that. You're trying to define a partial
specialisation of a function template, which is not allowed.

V
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