Re: partially specializing member functions of a template class

From:
"Victor Bazarov" <v.Abazarov@comAcast.net>
Newsgroups:
comp.lang.c++
Date:
Mon, 16 Jul 2007 09:00:23 -0400
Message-ID:
<f7fq5d$140$1@news.datemas.de>
Lionel B wrote:

On Mon, 16 Jul 2007 08:25:20 -0400, Victor Bazarov wrote:

Rahul wrote:

Is there a way to partially specialize only a member function


There is no way to partially specialize _any_ template function. The
only thing you can partially specialize is a class template.


Huh? Doesn't this count as a partial specialisation of a template
function?


No.

#include <iostream>

template <typename T1, typename T2>
void foo(const T1& t1, const T2& t2)
{
std::cout << "non-specialised\n";
std::cout << "t1 = " << t1 << '\n';
std::cout << "t2 = " << t2 << '\n';
}

template <typename T1>
void foo(const T1& t1, const int& t2)
{
std::cout << "partially specialised\n";


Printing out "partially specialised" in a function does not make
that function partially specialised, sorry.

What you have here is an *overloaded* function template.

std::cout << "t1 = " << t1 << '\n';
std::cout << "t2 = " << t2 << '\n';
}

int main()
{
foo(6.7, "hallo");
foo(6.7,3);
}

Output:

non-specialised
t1 = 6.7
t2 = hallo
partially specialised
t1 = 6.7
t2 = 3


V
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