[Octave-bug-tracker] [bug #43298] LLVM 3.5.0 cannot resolve the pow(octave_int<int>, octave_Int<int>) function overload

[Kefu Chai]

Follow-up Comment #27, bug #43298 (project octave):

@john

the source tree compiles fine with clang 3.5 after removing these conversions.
and i ran the tests using `make -C test check`. i have


Summary:

  PASS     11450
  FAIL        19
  XFAIL        7
  SKIPPED    216



@jordi, thanks for your comment. i am the author of the patch.

> We test for features. Can you write the corresponding autoconf check?

will pull together one. once we are confirmed that to remove the double and
float conversion operator does not work out.

> but if the bug only happens with an LLVM version that also has C++11
enabled, it may be ok.

yes. the libc++'s `pow()` template function implementation uses
`std::enable_if` also. so i guess it's safe to use C++11 features in the
patch.

> the autoconf check would need to verify that C++11 constructs like
std::enable_if are available. 

agreed. maybe the simpler way is to reevaluate if we really need the
`octave_int::operator` of double and float.



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