CODEWITHSUNDEEP
c++c++11staticcuda
Michael
Michael

Reputation: 7809

static const int in CUDA for a templated code

I have the following code snippet:

class Mesh{
  public:
    static const int DIM = 3;
    // several more static constants here
}

template <class M>
Coords{
  public:
    int c[M::DIM];
    // some more members using static constants of M here
}

And I would instantiate some coords with:

Coords<Mesh> coords;

Now this basically works good for me.

According to the documentation, CUDA 6.5 does not support static members at all (Programming Guide, E.2.6.1. Data Members, no link available). CUDA 7.0 adds support for static const members (http://docs.nvidia.com/cuda/cuda-c-programming-guide/index.html#const-variables).

As long as I use CUDA 6.5, how could I replace the static const int? #define is probably not a good option, because templatization would no longer work as intended.

Upvotes: 1

Views: 383

Answers (1)

Shadocko
Shadocko

Reputation: 1216

try with enums?

class Mesh{
  public:
    enum { DIM = 3 };
    // several more constants declared as enums here
}

template <class M>
Coords{
  public:
    int c[M::DIM];
    // some more members using enums of M here
}

Upvotes: 3

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