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field::as_datetime (2 of 2 overloads)

Retrieves a reference to the underlying datetime value or throws an exception.

Synopsis
datetime&
as_datetime();
Exception safety

Strong guarantee. Throws on type mismatch.

Exceptions

Type

Thrown On

bad_field_access

If !this->is_datetime()

Object lifetimes

The returned reference is valid as long as *this is alive and no function that invalidates references is called on *this.


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