diff options
Diffstat (limited to 'src/corelib/global/qcontainerinfo.h')
| -rw-r--r-- | src/corelib/global/qcontainerinfo.h | 45 |
1 files changed, 7 insertions, 38 deletions
diff --git a/src/corelib/global/qcontainerinfo.h b/src/corelib/global/qcontainerinfo.h index 21683440f8..14468510a5 100644 --- a/src/corelib/global/qcontainerinfo.h +++ b/src/corelib/global/qcontainerinfo.h @@ -1,41 +1,5 @@ -/**************************************************************************** -** -** Copyright (C) 2020 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtCore module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2020 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only #ifndef QCONTAINERINFO_H #define QCONTAINERINFO_H @@ -87,6 +51,11 @@ template<typename C> inline constexpr bool has_size_v<C, std::void_t<decltype(C().size())>> = true; template<typename C, typename = void> +inline constexpr bool has_reserve_v = false; +template<typename C> +inline constexpr bool has_reserve_v<C, std::void_t<decltype(C().reserve(0))>> = true; + +template<typename C, typename = void> inline constexpr bool has_clear_v = false; template<typename C> inline constexpr bool has_clear_v<C, std::void_t<decltype(C().clear())>> = true; |