Objects of a type with this trait can be compared for equality using memcmp. If two objects compare equal, then memcmp returns 0, otherwise it returns non-zero. Classes with this traits are assumed to have no padding and to be bit-wise copyable (see the TypeTraitBitwiseCopyable trait). Undefined behavior may result if this trait is assigned to a type that does not have an operator== or whose operator== implementation may return different from comparing the footprints with memcmp .
Declared in <bslalg_typetraitbitwiseequalitycomparable.h>
struct TypeTraitBitwiseEqualityComparable;| Name | Description |
|---|---|
Metafunction | Metafunction evaluating to true_type if TYPE is bitwise equality comparable; otherwise, false_type. |
NestedTraitDeclaration | This class template ties the bslalg::TypeTraitBitwiseEqualityComparable trait tag to the bslmf::IsBitwiseEqualityComparable trait metafunction. |