Re: Explicitly specializing std::min() on VC++ 2005 Express Edition



Matthias Hofmann wrote:
"Tom Widmer [VC++ MVP]" <tom_usenet@xxxxxxxxxxx> schrieb im Newsbeitrag news:%23tlRhSWjHHA.4772@xxxxxxxxxxxxxxxxxxxxxxx

You have your answer, but just to make things worse, what you are doing is illegal anyway - you aren't allowed to specialize std function templates unless the specialization involves a user-declared name (e.g. you can specialize them for your own types, but not for built-in or standard library types).

In practice, whether you care about this is up to you, but it is possible a library might include its own explicit specializations or explicit instantiations for such specializations, thus rendering your own explicit specialization either undefined behaviour or a compiler error.

But what if I want to specialize a template function that I wrote myself? I might have template function such as:

template <class T> inline
const T& minimum( const T& a, const T& b )
{ return a < b ? a : b; }

Then how do I specialize it in such a way that I can pass C-style strings?

Specialize it for both char* and char const*.

I
guess the answer is to overload the function instead of specializing it...

Or explicitly specialize for all types desired.

Tom
.



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