|  | #ifndef EIGEN_WARNINGS_DISABLED | 
|  | #define EIGEN_WARNINGS_DISABLED | 
|  |  | 
|  | #ifdef _MSC_VER | 
|  | // 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()) | 
|  | // 4512 - assignment operator could not be generated | 
|  | // 4522 - 'class' : multiple assignment operators specified | 
|  | // 4700 - uninitialized local variable 'xyz' used | 
|  | // 4717 - 'function' : recursive on all control paths, function will cause runtime stack overflow | 
|  | #ifndef EIGEN_PERMANENTLY_DISABLE_STUPID_WARNINGS | 
|  | #pragma warning( push ) | 
|  | #endif | 
|  | #pragma warning( disable : 4100 4101 4127 4181 4211 4244 4273 4324 4512 4522 4700 4717 ) | 
|  | #elif defined __INTEL_COMPILER | 
|  | // 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. | 
|  | #ifndef EIGEN_PERMANENTLY_DISABLE_STUPID_WARNINGS | 
|  | #pragma warning push | 
|  | #endif | 
|  | #pragma warning disable 2196 279 | 
|  | #elif defined __clang__ | 
|  | // -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 | 
|  | #ifndef EIGEN_PERMANENTLY_DISABLE_STUPID_WARNINGS | 
|  | #pragma clang diagnostic push | 
|  | #endif | 
|  | #pragma clang diagnostic ignored "-Wconstant-logical-operand" | 
|  | #endif | 
|  |  | 
|  | #endif // not EIGEN_WARNINGS_DISABLED |