Do not use on any
shared computer
September 5, 2008 04:36pm pdt
 
[x]
Attachment Details

template function w/ type & non-type parameters

I have the following class definitions:

template<unsigned dim>
class Vector
{ ... };

template<unsigned dim>
class Displacement : public Vector<dim>
{ ... };
template<unsigned dim>
class Velocity : public Vector<dim>
{ ... };
template<unsigned dim>
class Acceleration : public Vector<dim>
{ ... };

etc.

Now I want to overload binary operators +, - , *, /. But I don't want to write member functions for all vector types. (there are too many.) So I wrote the following template function:
      template<typename T, unsigned dim>
      T<dim> operator + (const T<dim> & t0, const T<dim> & t1)                 <<<< C2988 on this line
      {
            T<dim> ret;
            for (int i=0; i<dim; i++)
                  ret[i] = t0[i] + t1[i];
      }
But I get compiler error C2988 (unrecognizable template declaration/definition; Visual Studio Pro 2008). The help page (http://msdn.microsoft.com/en-us/library/f69a8fb8.aspx) is pretty useless.
Is it possible to write template like above (of course, w/o syntax errors) or do I have no choice but to copy-paste for all types derived from Vector<dim>?
Start your free trial to view this solution
[x]
The Solution Rating System

With so many solutions, how can you tell which solutions are most likely to help you and which ones are not? To provide you with a tool to use, we rate our solutions based on various elements that most accurately determine if a solution is a quality solution. To explain what factors affect the solution rating, here are the elements we take into consideration when formulating our solution rating.

  • The Grade of the Solution
  • The Zone Rank of the Expert Providing the Solution
  • The Number of Author and Expert Comments
  • The Number of Experts Contributing
  • The Feedback of the Community

Your Input Matters
Because of the way the system is set up, the most important variable in this equation is you. As a member of Experts Exchange, you are able to cast your vote on the quality of the solutions in regard to how complete, accurate, helpful and easy to understand each solution is. When you provide your feedback, each rating is adjusted accordingly. So, if you see a solution that has a poor rating that you think is a good solution, let us know by rating it. As you do, the rating will be adjusted and will become more accurate for other members of our site.

If you have any suggestions that you would like to make for our rating system, please ask a question in the Suggestions Zone of Community Support.

Thank you!

Question Stats
Zone: Developer
Question Asked By: jhshukla
Solution Provided By: jhshukla
Participating Experts: 1
Solution Grade: A
Views: 0
Translate:
Loading Advertisement...
 
[+][-]Expert Comment by jkr

Rank: Genius

Expert Comment by jkr:

All comments and solutions are available to Premium Service Members only.

Start your 7-day free trial and see for yourself why Experts Exchange is the easiest and most proven technology resource in the world. Get Started

Already a member? Login to view this solution.

 
 
[+][-]Author Comment by jhshukla
Author Comment by jhshukla:

All comments and solutions are available to Premium Service Members only.

Start your 7-day free trial and see for yourself why Experts Exchange is the easiest and most proven technology resource in the world. Get Started

Already a member? Login to view this solution.

 
 
[+][-]Author Comment by jhshukla
Author Comment by jhshukla:

All comments and solutions are available to Premium Service Members only.

Start your 7-day free trial and see for yourself why Experts Exchange is the easiest and most proven technology resource in the world. Get Started

Already a member? Login to view this solution.

 
 
[+][-]Author Comment by jhshukla
Author Comment by jhshukla:

All comments and solutions are available to Premium Service Members only.

Start your 7-day free trial and see for yourself why Experts Exchange is the easiest and most proven technology resource in the world. Get Started

Already a member? Login to view this solution.

 
 
[+][-]Accepted Solution by jhshukla
Accepted Solution by jhshukla:

All comments and solutions are available to Premium Service Members only.

Start your 7-day free trial and see for yourself why Experts Exchange is the easiest and most proven technology resource in the world. Get Started

Already a member? Login to view this solution.

 
 
Loading Advertisement...
20080723-EE-VQP-34 / EE_QW_2_20070628