// On Windows x64, the behaviour described on

// http://docs.scipy.org/doc/numpy/reference/c-api.array.html for

// PyArray_EquivTypes unfortunately does not extend as expected:

// "For example, on 32-bit platforms, NPY_LONG and NPY_INT are equivalent".

// This should also hold for 64-bit platforms (and does on Linux), but not

// on Windows. Implement an alternative:

#ifdef _MSC_VER

if (sizeof(long) == sizeof(int) &&

// Manually take care of the type equivalence.

((a == dtype::get_builtin<long>() || a == dtype::get_builtin<int>()) &&

(b == dtype::get_builtin<long>() || b == dtype::get_builtin<int>()) ||

(a == dtype::get_builtin<unsigned int>() || a == dtype::get_builtin<unsigned long>()) &&

(b == dtype::get_builtin<unsigned int>() || b == dtype::get_builtin<unsigned long>()))) {

return true;

} else {

return PyArray_EquivTypes(

reinterpret_cast<PyArray_Descr*>(a.ptr()),

reinterpret_cast<PyArray_Descr*>(b.ptr())

);

}

#else

return PyArray_EquivTypes(

reinterpret_cast<PyArray_Descr*>(a.ptr()),

reinterpret_cast<PyArray_Descr*>(b.ptr())

);

#endif