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value::as_bool (2 of 2 overloads)

Return the underlying bool, or throw an exception.

Synopsis
bool
as_bool() const;
Description

If is_bool() is true, returns the underlying bool, otherwise throws an exception.

Complexity

Constant.

Exception Safety

Strong guarantee.

Exceptions

Type

Thrown On

std::invalid_argument

! this->is_bool()


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