value::if_object
Return an object
pointer if this is an object, else return nullptr
Synopsis
Description
If this->kind() == kind::object
, returns a pointer to the underlying object. Otherwise, returns nullptr
.
Example
The return value is used in both a boolean context and to assign a variable:
if( auto p = jv.if_object() )
return *p;
Complexity
Constant.
Exception Safety
No-throw guarantee.