1#ifndef BOOST_MP11_DETAIL_MP_MIN_ELEMENT_HPP_INCLUDED
2#define BOOST_MP11_DETAIL_MP_MIN_ELEMENT_HPP_INCLUDED
3
4// Copyright 2015-2017 Peter Dimov.
5//
6// Distributed under the Boost Software License, Version 1.0.
7//
8// See accompanying file LICENSE_1_0.txt or copy at
9// http://www.boost.org/LICENSE_1_0.txt
10
11#include <boost/mp11/detail/mp_fold.hpp>
12#include <boost/mp11/list.hpp>
13#include <boost/mp11/utility.hpp>
14
15namespace boost
16{
17namespace mp11
18{
19
20// mp_min_element<L, P>
21namespace detail
22{
23
24template<template<class...> class P> struct select_min
25{
26 template<class T1, class T2> using fn = mp_if<P<T1, T2>, T1, T2>;
27};
28
29} // namespace detail
30
31template<class L, template<class...> class P> using mp_min_element = mp_fold_q<mp_rest<L>, mp_first<L>, detail::select_min<P>>;
32template<class L, class Q> using mp_min_element_q = mp_min_element<L, Q::template fn>;
33
34// mp_max_element<L, P>
35namespace detail
36{
37
38template<template<class...> class P> struct select_max
39{
40 template<class T1, class T2> using fn = mp_if<P<T2, T1>, T1, T2>;
41};
42
43} // namespace detail
44
45template<class L, template<class...> class P> using mp_max_element = mp_fold_q<mp_rest<L>, mp_first<L>, detail::select_max<P>>;
46template<class L, class Q> using mp_max_element_q = mp_max_element<L, Q::template fn>;
47
48} // namespace mp11
49} // namespace boost
50
51#endif // #ifndef BOOST_MP11_DETAIL_MP_MIN_ELEMENT_HPP_INCLUDED
52

source code of include/boost/mp11/detail/mp_min_element.hpp