/usr/include/thunderbird/mozilla/NullPtr.h is in thunderbird-dev 1:52.8.0-1~deb8u1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* Implements a mozilla::IsNullPointer<T> type trait. */
#ifndef mozilla_NullPtr_h
#define mozilla_NullPtr_h
#include "mozilla/TypeTraits.h"
namespace mozilla {
/**
* IsNullPointer<T>::value is true iff T is decltype(nullptr).
*
* Ideally this would be in TypeTraits.h, but C++11 omitted std::is_null_pointer
* (fixed in C++14), so in the interests of easing a switch to <type_traits>,
* this trait lives elsewhere.
*/
template<typename T>
struct IsNullPointer : FalseType {};
template<>
struct IsNullPointer<decltype(nullptr)> : TrueType {};
} // namespace mozilla
#endif /* mozilla_NullPtr_h */
|