Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. — Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

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

const float&
as_float() const;
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Retrieves a reference to the underlying float value or throws an exception.

float&
as_float();
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