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construct/include/ircd/util/assume.h

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// The Construct
//
// Copyright (C) The Construct Developers, Authors & Contributors
// Copyright (C) 2016-2020 Jason Volk <jason@zemos.net>
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice is present in all copies. The
// full license for this software is available in the LICENSE file.
#pragma once
#define HAVE_IRCD_UTIL_ASSUME_H
namespace ircd { inline namespace util
{
template<class T>
[[using gnu: always_inline, gnu_inline, artificial]]
extern inline void
assume(T&& expr)
{
assert(static_cast<T&&>(expr));
#if __has_builtin(__builtin_assume)
__builtin_assume(static_cast<T&&>(expr));
#endif
}
}}