From f215e02bf85f68d3a6106c2a1f4f7f063f819064 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:17:27 +0200 Subject: Adding upstream version 7.0.14-dfsg. Signed-off-by: Daniel Baumann --- include/iprt/cpp/meta.h | 125 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 125 insertions(+) create mode 100644 include/iprt/cpp/meta.h (limited to 'include/iprt/cpp/meta.h') diff --git a/include/iprt/cpp/meta.h b/include/iprt/cpp/meta.h new file mode 100644 index 00000000..b59493b7 --- /dev/null +++ b/include/iprt/cpp/meta.h @@ -0,0 +1,125 @@ +/** @file + * IPRT - C++ Meta programming. + */ + +/* + * Copyright (C) 2011-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + +#ifndef IPRT_INCLUDED_cpp_meta_h +#define IPRT_INCLUDED_cpp_meta_h +#ifndef RT_WITHOUT_PRAGMA_ONCE +# pragma once +#endif + +#include + +/** @defgroup grp_rt_cpp_meta C++ Meta programming utilities + * @ingroup grp_rt_cpp + * @{ + */ + +/** + * Check for a condition on compile time and dependent of the result TrueResult + * or FalseResult will be defined. + * + * @param Condition Condition to check. + * @param TrueResult Result when condition is true. + * @param FalseResult Result when condition is false + */ +template +struct RTCIf; + +/** + * Check for a condition on compile time and dependent of the result TrueResult + * or FalseResult will be defined. + * + * True specialization of RTCIf. + * + * @param TrueResult Result when condition is true. + * @param FalseResult Result when condition is false + */ +template +struct RTCIf +{ + typedef TrueResult result; +}; + +/** + * Check for a condition on compile time and dependent of the result TrueResult + * or FalseResult will be defined. + * + * False specialization of RTCIf. + * + * @param TrueResult Result when condition is true. + * @param FalseResult Result when condition is false + */ +template +struct RTCIf +{ + typedef FalseResult result; +}; + +/** + * Check if @a T is a pointer or not at compile time and dependent of the + * result TrueResult or FalseResult will be defined. + * + * False version of RTCIfPtr. + * + * @param Condition Condition to check. + * @param TrueResult Result when condition is true. + * @param FalseResult Result when condition is false + */ +template +struct RTCIfPtr +{ + typedef FalseResult result; +}; + +/** + * Check if @a T is a pointer or not at compile time and dependent of the + * result TrueResult or FalseResult will be defined. + * + * True specialization of RTCIfPtr. + * + * @param Condition Condition to check. + * @param TrueResult Result when condition is true. + * @param FalseResult Result when condition is false + */ +template +struct RTCIfPtr +{ + typedef TrueResult result; +}; + +/** @} */ + +#endif /* !IPRT_INCLUDED_cpp_meta_h */ + -- cgit v1.2.3