Return the underlying value, or default_value if null.
Declared in <bdlb_nullablevalueref.h>
template<class ANY_TYPE>
TYPE
value_or(ANY_TYPE const& default_value) const;Return the value of the underlying object of a (template parameter) TYPE if the target is non-null, and the specified default_value otherwise. Note that this method returns by value, so may be inefficient in some contexts.
underlying value, or default_value if null
| Name | Description |
|---|---|
| default_value | fallback when the target is null |