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-rw-r--r--cutl/details/boost/utility/enable_if.hpp119
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diff --git a/cutl/details/boost/utility/enable_if.hpp b/cutl/details/boost/utility/enable_if.hpp
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-// Boost enable_if library
-
-// Copyright 2003 (c) The Trustees of Indiana University.
-
-// Use, modification, and distribution is subject to 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)
-
-// Authors: Jaakko Jarvi (jajarvi at osl.iu.edu)
-// Jeremiah Willcock (jewillco at osl.iu.edu)
-// Andrew Lumsdaine (lums at osl.iu.edu)
-
-
-#ifndef BOOST_UTILITY_ENABLE_IF_HPP
-#define BOOST_UTILITY_ENABLE_IF_HPP
-
-#include "cutl/details/boost/config.hpp"
-
-// Even the definition of enable_if causes problems on some compilers,
-// so it's macroed out for all compilers that do not support SFINAE
-
-#ifndef BOOST_NO_SFINAE
-
-namespace cutl_details_boost
-{
-
- template <bool B, class T = void>
- struct enable_if_c {
- typedef T type;
- };
-
- template <class T>
- struct enable_if_c<false, T> {};
-
- template <class Cond, class T = void>
- struct enable_if : public enable_if_c<Cond::value, T> {};
-
- template <bool B, class T>
- struct lazy_enable_if_c {
- typedef typename T::type type;
- };
-
- template <class T>
- struct lazy_enable_if_c<false, T> {};
-
- template <class Cond, class T>
- struct lazy_enable_if : public lazy_enable_if_c<Cond::value, T> {};
-
-
- template <bool B, class T = void>
- struct disable_if_c {
- typedef T type;
- };
-
- template <class T>
- struct disable_if_c<true, T> {};
-
- template <class Cond, class T = void>
- struct disable_if : public disable_if_c<Cond::value, T> {};
-
- template <bool B, class T>
- struct lazy_disable_if_c {
- typedef typename T::type type;
- };
-
- template <class T>
- struct lazy_disable_if_c<true, T> {};
-
- template <class Cond, class T>
- struct lazy_disable_if : public lazy_disable_if_c<Cond::value, T> {};
-
-} // namespace cutl_details_boost
-
-#else
-
-namespace cutl_details_boost {
-
- namespace detail { typedef void enable_if_default_T; }
-
- template <typename T>
- struct enable_if_does_not_work_on_this_compiler;
-
- template <bool B, class T = detail::enable_if_default_T>
- struct enable_if_c : enable_if_does_not_work_on_this_compiler<T>
- { };
-
- template <bool B, class T = detail::enable_if_default_T>
- struct disable_if_c : enable_if_does_not_work_on_this_compiler<T>
- { };
-
- template <bool B, class T = detail::enable_if_default_T>
- struct lazy_enable_if_c : enable_if_does_not_work_on_this_compiler<T>
- { };
-
- template <bool B, class T = detail::enable_if_default_T>
- struct lazy_disable_if_c : enable_if_does_not_work_on_this_compiler<T>
- { };
-
- template <class Cond, class T = detail::enable_if_default_T>
- struct enable_if : enable_if_does_not_work_on_this_compiler<T>
- { };
-
- template <class Cond, class T = detail::enable_if_default_T>
- struct disable_if : enable_if_does_not_work_on_this_compiler<T>
- { };
-
- template <class Cond, class T = detail::enable_if_default_T>
- struct lazy_enable_if : enable_if_does_not_work_on_this_compiler<T>
- { };
-
- template <class Cond, class T = detail::enable_if_default_T>
- struct lazy_disable_if : enable_if_does_not_work_on_this_compiler<T>
- { };
-
-} // namespace cutl_details_boost
-
-#endif // BOOST_NO_SFINAE
-
-#endif