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Sebastian_R_1
Beginner
76 Views

Elemental functions in template classes

I just figured out that you can not call math functions when combining elemental functions and template classes:

[cpp]#include <cmath>
template<typename T>
class A {
public:
__attribute__((vector))
T b(T value)
{
  return std::sqrt(value);
}
};

int main()
{
   A classA;
   float b = 4;
   classA.b(b);
} [/cpp]

Error message:
[plain] asdf.cpp(13): error #2593: indirect call is not supported in vector function
return std::sqrt(value);
          ^ [/plain]

Compiler version:
[plain]icpc (ICC) 12.1.5 20120612
Copyright (C) 1985-2012 Intel Corporation. All rights reserved. [/plain]

I can work around this problem using typedefs, but it would be nice to support this with templates as well.

0 Kudos
3 Replies
SergeyKostrov
Valued Contributor II
76 Views

Did you try to compile your test-case without '__attribute__( ( vector ) )' for the function 'b'?
Sebastian_R_1
Beginner
76 Views

Yes, works fine.
Judith_W_Intel
Employee
76 Views

I see this error in an older version of 12.1. It looks like this was fixed in early August 2012 as our DPD200235034 in both 12.1 and 13.0. Please upgrade to a new version and sorry for the inconvenience. Judy
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