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// 4100 - unreferenced formal parameter (occurred e.g. in aligned_allocator::destroy(pointer p))
// 4101 - unreferenced local variable
// 4127 - conditional expression is constant
// 4181 - qualifier applied to reference type ignored
// 4211 - nonstandard extension used : redefined extern to static
// 4244 - 'argument' : conversion from 'type1' to 'type2', possible loss of data
// 4273 - QtAlignedMalloc, inconsistent DLL linkage
// 4324 - structure was padded due to declspec(align())
// 4503 - decorated name length exceeded, name was truncated
// 4512 - assignment operator could not be generated
// 4522 - 'class' : multiple assignment operators specified
// 4700 - uninitialized local variable 'xyz' used
// 4714 - function marked as __forceinline not inlined
// 4717 - 'function' : recursive on all control paths, function will cause runtime stack overflow
// 4800 - 'type' : forcing value to bool 'true' or 'false' (performance warning)
// We currently rely on has_denorm in tests, and need it defined correctly for half/bfloat16.
// 2196 - routine is both "inline" and "noinline" ("noinline" assumed)
// ICC 12 generates this warning even without any inline keyword, when defining class methods 'inline' i.e.
// inside of class body typedef that may be a reference type.
// 279 - controlling expression is constant
// ICC 12 generates this warning on assert(constant_expression_depending_on_template_params) and frankly this is
// a legitimate use case.
// 1684 - conversion from pointer to same-sized integral type (potential portability problem)
// 2259 - non-pointer conversion from "Eigen::Index={ptrdiff_t={long}}" to "int" may lose significant bits
// -Wconstant-logical-operand - warning: use of logical && with constant operand; switch to bitwise & or remove constant
// this is really a stupid warning as it warns on compile-time expressions involving enums
// warning: generic selections are a C11-specific feature
// ignoring warnings thrown at vec_ctf in Altivec/PacketMath.h
// g++ warns about local variables shadowing member functions, which is too strict
// Until g++-4.7 there are warnings when comparing unsigned int vs 0, even in templated functions:
// See: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89325
// MSVC 14.16 (required by CUDA 9.*) does not support the _Pragma keyword, so
// we instead use Microsoft's __pragma extension.
// Disable the "statement is unreachable" message
// Disable the "dynamic initialization in unreachable code" message
// Disable the "invalid error number" message that we get with older versions of nvcc
// Disable the "calling a __host__ function from a __host__ __device__ function is not allowed" messages (yes, there are
// many of them and they seem to change with every version of the compiler)
// Disable the "// __device__ annotation is ignored on a function(...) that is
// explicitly defaulted on its first declaration" message.
// The __device__ annotation seems to actually be needed in some cases,
// otherwise resulting in kernel runtime errors.
// warnings already disabled:
// not EIGEN_WARNINGS_DISABLED