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

| Boost.Hana 1.0.0 Your standard library for metaprogramming |

Namespaces | Variables
count.hpp File Reference

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

## Namespaces

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

## Variables

constexpr auto | boost::hana::count

Return the number of elements in the structure that compare equal to a given value.Given a Foldable structure `xs` and a value `value`, `count` returns an unsigned integral, or a Constant thereof, representing the number of elements of `xs` that compare equal to `value`. For this method to be well-defined, all the elements of the structure must be Comparable with the given value. More...

## Detailed Description

Forward declares `boost::hana::count`.

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)