...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Return a reference to a double
,
changing the kind and replacing the contents.
double& emplace_double() noexcept;
The value is replaced with a double
initialized to zero, destroying the previous contents.
Linear in the size of *this
.
No-throw guarantee.