Move webrtc/{base => rtc_base}

webrtc/base/template_util.h

 /*
  *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 // Borrowed from Chromium's src/base/template_util.h.
 
 #ifndef WEBRTC_BASE_TEMPLATE_UTIL_H_
 #define WEBRTC_BASE_TEMPLATE_UTIL_H_
 
-#include <stddef.h>  // For size_t.
 
-namespace rtc {
-
-// Template definitions from tr1.
-
-template<class T, T v>
-struct integral_constant {
-  static const T value = v;
-  typedef T value_type;
-  typedef integral_constant<T, v> type;
-};
-
-template <class T, T v> const T integral_constant<T, v>::value;
-
-typedef integral_constant<bool, true> true_type;
-typedef integral_constant<bool, false> false_type;
-
-template <class T> struct is_pointer : false_type {};
-template <class T> struct is_pointer<T*> : true_type {};
-
-template <class T, class U> struct is_same : public false_type {};
-template <class T> struct is_same<T, T> : true_type {};
-
-template<class> struct is_array : public false_type {};
-template<class T, size_t n> struct is_array<T[n]> : public true_type {};
-template<class T> struct is_array<T[]> : public true_type {};
-
-template <class T> struct is_non_const_reference : false_type {};
-template <class T> struct is_non_const_reference<T&> : true_type {};
-template <class T> struct is_non_const_reference<const T&> : false_type {};
-
-template <class T> struct is_void : false_type {};
-template <> struct is_void<void> : true_type {};
-
-// Helper useful for converting a tuple to variadic template function
-// arguments.
-//
-// sequence_generator<3>::type will be sequence<0, 1, 2>.
-template <int...>
-struct sequence {};
-template <int N, int... S>
-struct sequence_generator : sequence_generator<N - 1, N - 1, S...> {};
-template <int... S>
-struct sequence_generator<0, S...> {
-  typedef sequence<S...> type;
-};
-
-namespace internal {
-
-// Types YesType and NoType are guaranteed such that sizeof(YesType) <
-// sizeof(NoType).
-typedef char YesType;
-
-struct NoType {
-  YesType dummy[2];
-};
-
-// This class is an implementation detail for is_convertible, and you
-// don't need to know how it works to use is_convertible. For those
-// who care: we declare two different functions, one whose argument is
-// of type To and one with a variadic argument list. We give them
-// return types of different size, so we can use sizeof to trick the
-// compiler into telling us which function it would have chosen if we
-// had called it with an argument of type From.  See Alexandrescu's
-// _Modern C++ Design_ for more details on this sort of trick.
-
-struct ConvertHelper {
-  template <typename To>
-  static YesType Test(To);
-
-  template <typename To>
-  static NoType Test(...);
-
-  template <typename From>
-  static From& Create();
-};
-
-// Used to determine if a type is a struct/union/class. Inspired by Boost's
-// is_class type_trait implementation.
-struct IsClassHelper {
-  template <typename C>
-  static YesType Test(void(C::*)(void));
-
-  template <typename C>
-  static NoType Test(...);
-};
-
-}  // namespace internal
-
-// Inherits from true_type if From is convertible to To, false_type otherwise.
-//
-// Note that if the type is convertible, this will be a true_type REGARDLESS
-// of whether or not the conversion would emit a warning.
-template <typename From, typename To>
-struct is_convertible
-    : integral_constant<bool,
-                        sizeof(internal::ConvertHelper::Test<To>(
-                                   internal::ConvertHelper::Create<From>())) ==
-                        sizeof(internal::YesType)> {
-};
-
-template <typename T>
-struct is_class
-    : integral_constant<bool,
-                        sizeof(internal::IsClassHelper::Test<T>(0)) ==
-                            sizeof(internal::YesType)> {
-};
-
-}  // namespace rtc
+// This header is deprecated and is just left here temporarily during
+// refactoring. See https://bugs.webrtc.org/7634 for more details.
+#include "webrtc/rtc_base/template_util.h"
 
 #endif  // WEBRTC_BASE_TEMPLATE_UTIL_H_