From ed6115361006240e3c7b02295599e4534cc55a13 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Sat, 19 Oct 2013 08:57:20 +0200
Subject: Update internal Boost subset to 1.54.0

---
 cutl/details/boost/utility/enable_if.hpp | 119 +++++++++++++++++++++++++++++++
 1 file changed, 119 insertions(+)
 create mode 100644 cutl/details/boost/utility/enable_if.hpp

(limited to 'cutl/details/boost/utility/enable_if.hpp')

diff --git a/cutl/details/boost/utility/enable_if.hpp b/cutl/details/boost/utility/enable_if.hpp
new file mode 100644
index 0000000..b01210a
--- /dev/null
+++ b/cutl/details/boost/utility/enable_if.hpp
@@ -0,0 +1,119 @@
+// 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
-- 
cgit v1.1