BloombergLP::bslalg::NothrowMovableWrapper

An object of this type wraps a value of the specified TYPE, and provides no other functionality other than returning the wrapped object. The move constructor is guaranteed not to throw, even if the move constructor for TYPE has no such guarantee. The user is thus asserting that the move constructor for the wrapped object will not throw, even if it is allowed to. Constraints: this class can be instantiated on object types only, i.e., not references, arrays, or function types (though function pointers are OK).

Synopsis

Declared in <bslalg_nothrowmovablewrapper.h>

template<class TYPE>
class NothrowMovableWrapper;

Type Aliases

Name	Description
`ValueType`	Alias for the wrapped `TYPE`.
`allocator_type`	Type of allocator to use. If `TYPE` is not allocator-aware, then this is a private dummy type that will disable use of any constructor that takes an allocator.

Member Functions

Name	Description
`NothrowMovableWrapper` [constructor]	Constructors
`~NothrowMovableWrapper` [destructor]	Destroy this object, invoking `TYPE`s destructor.
`get_allocator`	Return the allocator used to construct this object. Note that this method will fail to instantiate unless `TYPE` is allocator-aware.
`unwrap`	`unwrap` overloads
`operator BloombergLP::bslmf::NestedTraitDeclaration<NothrowMovableWrapper, IsBitwiseMoveable, bslmf::IsBitwiseMoveable<TYPE>::value>`	Declare `NothrowMovableWrapper` as bitwise moveable when `TYPE` is.
`operator BloombergLP::bslmf::NestedTraitDeclaration<NothrowMovableWrapper, UsesAllocatorArgT, bslma::UsesBslmaAllocator<TYPE>::value>`	Declare that `NothrowMovableWrapper` uses the leading-allocator convention when `TYPE` is allocator-aware.
`operator BloombergLP::bslmf::NestedTraitDeclaration<NothrowMovableWrapper, UsesBslmaAllocator, bslma::UsesBslmaAllocator<TYPE>::value>`	Declare whether `NothrowMovableWrapper` uses a `bslma` allocator.
`operator BloombergLP::bslmf::NestedTraitDeclaration<NothrowMovableWrapper, is_nothrow_move_constructible>`	Declare that `NothrowMovableWrapper` is nothrow move constructible.
`operator ValueType&`	Return a reference offering modifiable access to the wrapped object.
`operator ValueType const&`	Return a reference offering const access to the wrapped object.

Specializations

Name	Description
`NothrowMovableWrapper<NothrowMovableWrapper<TYPE>>`	This specialization is for wrapped types. We do not support wrapping a wrapped type.
`NothrowMovableWrapper<NothrowMovableWrapper<TYPE> const>`	This specialization is for wrapped types. We do not support wrapping a wrapped type.