From 587929edf67fabc8397cac970db5cd6bfcb02144 Mon Sep 17 00:00:00 2001
From: Damian Jarek <damian.jarek93@gmail.com>
Date: Wed, 28 Nov 2018 14:35:26 +0100
Subject: [PATCH] Remove unused type_traits

close #1337

Signed-off-by: Damian Jarek <damian.jarek93@gmail.com>
---
 CHANGELOG.md                                  |  1 +
 .../boost/beast/core/detail/type_traits.hpp   | 80 -------------------
 test/beast/core/type_traits.cpp               | 23 ------
 3 files changed, 1 insertion(+), 103 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index e3c12f26..3ce331d4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,7 @@
 Version 196:
 
 * Tidy up calls to placement new
+* Remove unused type_traits
 
 --------------------------------------------------------------------------------
 
diff --git a/include/boost/beast/core/detail/type_traits.hpp b/include/boost/beast/core/detail/type_traits.hpp
index c09a2d49..59488f13 100644
--- a/include/boost/beast/core/detail/type_traits.hpp
+++ b/include/boost/beast/core/detail/type_traits.hpp
@@ -150,86 +150,6 @@ struct is_contiguous_container<T, E, void_t<
 
 //------------------------------------------------------------------------------
 
-template<class...>
-struct unwidest_unsigned;
-
-template<class U0>
-struct unwidest_unsigned<U0>
-{
-    using type = U0;
-};
-
-template<class U0, class... UN>
-struct unwidest_unsigned<U0, UN...>
-{
-    BOOST_STATIC_ASSERT(std::is_unsigned<U0>::value);
-    using type = typename std::conditional<
-        (sizeof(U0) < sizeof(typename unwidest_unsigned<UN...>::type)),
-        U0, typename unwidest_unsigned<UN...>::type>::type;
-};
-
-template<class...>
-struct widest_unsigned;
-
-template<class U0>
-struct widest_unsigned<U0>
-{
-    using type = U0;
-};
-
-template<class U0, class... UN>
-struct widest_unsigned<U0, UN...>
-{
-    BOOST_STATIC_ASSERT(std::is_unsigned<U0>::value);
-    using type = typename std::conditional<
-        (sizeof(U0) > sizeof(typename widest_unsigned<UN...>::type)),
-        U0, typename widest_unsigned<UN...>::type>::type;
-};
-
-template<class U>
-inline
-constexpr
-U
-min_all(U u)
-{
-    BOOST_STATIC_ASSERT(std::is_unsigned<U>::value);
-    return u;
-}
-
-template<class U0, class U1, class... UN>
-inline
-constexpr
-typename unwidest_unsigned<U0, U1, UN...>::type
-min_all(U0 u0, U1 u1, UN... un)
-{
-    using type =
-        typename unwidest_unsigned<U0, U1, UN...>::type;
-    return u0 < u1 ?
-        static_cast<type>(min_all(u0, un...)) :
-        static_cast<type>(min_all(u1, un...));
-}
-
-template<class U>
-inline
-constexpr
-U
-max_all(U u)
-{
-    BOOST_STATIC_ASSERT(std::is_unsigned<U>::value);
-    return u;
-}
-
-template<class U0, class U1, class... UN>
-inline
-constexpr
-typename widest_unsigned<U0, U1, UN...>::type
-max_all(U0 u0, U1 u1, UN... un)
-{
-    return u0 > u1? max_all(u0, un...) : max_all(u1, un...);
-}
-
-//------------------------------------------------------------------------------
-
 template<class T, class = void>
 struct get_lowest_layer_helper
 {
diff --git a/test/beast/core/type_traits.cpp b/test/beast/core/type_traits.cpp
index 3f1a9905..9ca2c0e1 100644
--- a/test/beast/core/type_traits.cpp
+++ b/test/beast/core/type_traits.cpp
@@ -93,29 +93,6 @@ BOOST_STATIC_ASSERT(std::is_same<get_lowest_layer<F4<F2>>, F2>::value);
 BOOST_STATIC_ASSERT(std::is_same<get_lowest_layer<F4<F3<F1>>>, F1>::value);
 BOOST_STATIC_ASSERT(std::is_same<get_lowest_layer<F4<F3<F2>>>, F2>::value);
 
-//
-// min_all, max_all
-//
-
-BOOST_STATIC_ASSERT(std::is_same<std::size_t,
-    widest_unsigned<unsigned short, std::size_t>::type>::value);
-BOOST_STATIC_ASSERT(std::is_same<std::uint64_t,
-    widest_unsigned<unsigned short, std::uint32_t, std::uint64_t>::type>::value);
-BOOST_STATIC_ASSERT(! std::is_same<std::uint64_t,
-    widest_unsigned<unsigned short, std::uint32_t>::type>::value);
-BOOST_STATIC_ASSERT(std::is_same<unsigned short,
-    unwidest_unsigned<unsigned short, std::size_t>::type>::value);
-BOOST_STATIC_ASSERT(std::is_same<unsigned short,
-    unwidest_unsigned<unsigned short, std::uint32_t, std::uint64_t>::type>::value);
-BOOST_STATIC_ASSERT(! std::is_same<std::uint32_t,
-    unwidest_unsigned<unsigned short, std::uint32_t>::type>::value);
-BOOST_STATIC_ASSERT(max_all(1u) == 1);
-BOOST_STATIC_ASSERT(max_all(1u, 2u) == 2);
-BOOST_STATIC_ASSERT(max_all(1u, 2u, static_cast<std::uint64_t>(3)) == 3);
-BOOST_STATIC_ASSERT(min_all(1u) == 1);
-BOOST_STATIC_ASSERT(min_all(1u, 2u) == 1);
-BOOST_STATIC_ASSERT(min_all(1u, 2u, static_cast<std::uint64_t>(3)) == 1);
-
 } // (anonymous)
 
 } // detail