From 16f504a9dca3fe3b70568f67b7d41241ae485288 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 18:49:04 +0200 Subject: Adding upstream version 7.0.6-dfsg. Signed-off-by: Daniel Baumann --- include/iprt/sort.h | 141 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 141 insertions(+) create mode 100644 include/iprt/sort.h (limited to 'include/iprt/sort.h') diff --git a/include/iprt/sort.h b/include/iprt/sort.h new file mode 100644 index 00000000..4e5d47de --- /dev/null +++ b/include/iprt/sort.h @@ -0,0 +1,141 @@ +/** @file + * IPRT - Sorting. + */ + +/* + * Copyright (C) 2006-2022 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_sort_h +#define IPRT_INCLUDED_sort_h +#ifndef RT_WITHOUT_PRAGMA_ONCE +# pragma once +#endif + +#include + +/** @defgroup grp_rt_sort RTSort - Sorting Algorithms + * @ingroup grp_rt + * @{ */ + +RT_C_DECLS_BEGIN + +/** + * Callback for comparing two array elements. + * + * @retval 0 if equal. + * @retval -1 if @a pvElement1 comes before @a pvElement2. + * @retval 1 if @a pvElement1 comes after @a pvElement2. + * + * @param pvElement1 The 1st element. + * @param pvElement2 The 2nd element. + * @param pvUser The user argument passed to the sorting function. + */ +typedef DECLCALLBACKTYPE(int, FNRTSORTCMP,(void const *pvElement1, void const *pvElement2, void *pvUser)); +/** Pointer to a compare function. */ +typedef FNRTSORTCMP *PFNRTSORTCMP; + +/** + * Sorter function for an array of variable sized elementes. + * + * @param pvArray The array to sort. + * @param cElements The number of elements in the array. + * @param cbElement The size of an array element. + * @param pfnCmp Callback function comparing two elements. + * @param pvUser User argument for the callback. + */ +typedef DECLCALLBACKTYPE(void, FNRTSORT,(void *pvArray, size_t cElements, size_t cbElement, PFNRTSORTCMP pfnCmp, void *pvUser)); +/** Pointer to a sorter function for an array of variable sized elements. */ +typedef FNRTSORT *PFNRTSORT; + +/** + * Pointer array sorter function. + * + * @param papvArray The array to sort. + * @param cElements The number of elements in the array. + * @param pfnCmp Callback function comparing two elements. + * @param pvUser User argument for the callback. + */ +typedef DECLCALLBACKTYPE(void, FNRTSORTAPV,(void **papvArray, size_t cElements, PFNRTSORTCMP pfnCmp, void *pvUser)); +/** Pointer to a pointer array sorter function. */ +typedef FNRTSORTAPV *PFNRTSORTAPV; + +/** + * Shell sort an array of variable sized elementes. + * + * @param pvArray The array to sort. + * @param cElements The number of elements in the array. + * @param cbElement The size of an array element. + * @param pfnCmp Callback function comparing two elements. + * @param pvUser User argument for the callback. + */ +RTDECL(void) RTSortShell(void *pvArray, size_t cElements, size_t cbElement, PFNRTSORTCMP pfnCmp, void *pvUser); + +/** + * Same as RTSortShell but speciallized for an array containing element + * pointers. + * + * @param papvArray The array to sort. + * @param cElements The number of elements in the array. + * @param pfnCmp Callback function comparing two elements. + * @param pvUser User argument for the callback. + */ +RTDECL(void) RTSortApvShell(void **papvArray, size_t cElements, PFNRTSORTCMP pfnCmp, void *pvUser); + +/** + * Checks if an array of variable sized elementes is sorted. + * + * @returns true if it is sorted, false if it isn't. + * @param pvArray The array to check. + * @param cElements The number of elements in the array. + * @param cbElement The size of an array element. + * @param pfnCmp Callback function comparing two elements. + * @param pvUser User argument for the callback. + */ +RTDECL(bool) RTSortIsSorted(void const *pvArray, size_t cElements, size_t cbElement, PFNRTSORTCMP pfnCmp, void *pvUser); + +/** + * Same as RTSortShell but speciallized for an array containing element + * pointers. + * + * @returns true if it is sorted, false if it isn't. + * @param papvArray The array to check. + * @param cElements The number of elements in the array. + * @param pfnCmp Callback function comparing two elements. + * @param pvUser User argument for the callback. + */ +RTDECL(bool) RTSortApvIsSorted(void const * const *papvArray, size_t cElements, PFNRTSORTCMP pfnCmp, void *pvUser); + +RT_C_DECLS_END + +/** @} */ + +#endif /* !IPRT_INCLUDED_sort_h */ + -- cgit v1.2.3