Boost.Hana: boost/hana/fwd/is_empty.hpp File Reference

| Boost.Hana 1.0.0 Your standard library for metaprogramming |

Namespaces | Variables
is_empty.hpp File Reference

Forward declares `boost::hana::is_empty`. More...

## Namespaces

| boost
| boost::hana
| Namespace containing everything in the library.

## Variables

constexpr auto | boost::hana::is_empty

Returns whether the iterable is empty.Given an `Iterable` `xs`, `is_empty` returns whether `xs` contains no more elements. In other words, it returns whether trying to extract the tail of `xs` would be an error. In the current version of the library, `is_empty` must return an `IntegralConstant` holding a value convertible to `bool`. This is because only compile-time `Iterable`s are supported right now. More...

## Detailed Description

Forward declares `boost::hana::is_empty`.

Copyright
  Louis Dionne 2013-2016 Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)