BloombergLP::bslstl::Optional_Data

Component-private storage that destroys a non-trivial contained value.

Synopsis

Declared in <bslstl_optional.h>

template<
    class t_TYPE,
    bool t_IS_TRIVIALLY_DESTRUCTIBLE = bslstl::Optional_IsTriviallyDestructible<t_TYPE>::value>
struct Optional_Data
    : Optional_DataImp<t_TYPE>

Description

This component-private struct manages a value_type object in Optional_Base by inheriting from Optional_DataImp. In addition, this primary template properly destroys the owned instance of t_TYPE in its destructor.

Base Classes

NameDescription
Optional_DataImp<t_TYPE>Component-private buffer managing an optional's contained value.

Member Functions

NameDescription
~Optional_Data [destructor]Destroy the managed value_type object, if it exists.
emplace Destroy any contained value and construct a new one in place.
hasValue Return true if this objects has a value, and false otherwise.
reset Destroy the value_type object in d_buffer, if any.
value value overloads

Using Declarations

NameDescription
Unnamed using Inherit Optional_DataImp constructors from the base class.

Specializations

NameDescription
Optional_Data<t_TYPE, true> Partial specialization for a trivially destructible contained value.