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value::if_array (2 of 2 overloads)

Return an array pointer if this is an array, else return nullptr

Synopsis
array*
if_array() noexcept;
Description

If this->kind() == kind::array, returns a pointer to the underlying array. Otherwise, returns nullptr.

Example

The return value is used in both a boolean context and to assign a variable:

if( auto p = jv.if_array() )
    return *p;
Complexity

Constant.

Exception Safety

No-throw guarantee.


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