first

Synopsis

template <class P>
struct first
{
  // unspecified
};

Description

Returns the first element of the pair P.

Header

#include <mpllibs/metamonad/first.hpp>

Expression semantics

For any p nullary metafunction

first<p>::type

is equivalent to

p::type::first

Example

first<pair<int_<11>, int_<13>>>::type

Copyright Abel Sinkovics (abel at elte dot hu) 2011. Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt

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