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

This is the documentation for a snapshot of the develop branch, built from commit b8adfe0e57.

identity¶

Description¶

The identity function is a unary function object that returns what’s given to it.

Semantics¶

assert(identity(x) == x);

Synopsis¶

template<class T>
constexpr T identity(T&& x);