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UXP/mfbt/Likely.h
T
Moonchild 8c395520d9 Issue #1656 - Part 1: Nuke most vim config lines in the tree.
Since these are just interpreted comments, there's 0 impact on actual code.
This removes all lines that match /* vim: set(.*)tw=80: */ with S&R -- there are
a few others scattered around which will be removed manually in a second part.
2020-09-25 22:04:12 +08:00

23 lines
728 B
C

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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/. */
/*
* MOZ_LIKELY and MOZ_UNLIKELY macros to hint to the compiler how a
* boolean predicate should be branch-predicted.
*/
#ifndef mozilla_Likely_h
#define mozilla_Likely_h
#if defined(__clang__) || defined(__GNUC__)
# define MOZ_LIKELY(x) (__builtin_expect(!!(x), 1))
# define MOZ_UNLIKELY(x) (__builtin_expect(!!(x), 0))
#else
# define MOZ_LIKELY(x) (!!(x))
# define MOZ_UNLIKELY(x) (!!(x))
#endif
#endif /* mozilla_Likely_h */