diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:49:04 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:49:04 +0000 |
commit | 16f504a9dca3fe3b70568f67b7d41241ae485288 (patch) | |
tree | c60f36ada0496ba928b7161059ba5ab1ab224f9d /src/libs/xpcom18a4/xpcom/ds/nsValueArray.h | |
parent | Initial commit. (diff) | |
download | virtualbox-upstream.tar.xz virtualbox-upstream.zip |
Adding upstream version 7.0.6-dfsg.upstream/7.0.6-dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/libs/xpcom18a4/xpcom/ds/nsValueArray.h')
-rw-r--r-- | src/libs/xpcom18a4/xpcom/ds/nsValueArray.h | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/xpcom/ds/nsValueArray.h b/src/libs/xpcom18a4/xpcom/ds/nsValueArray.h new file mode 100644 index 00000000..6437ca60 --- /dev/null +++ b/src/libs/xpcom18a4/xpcom/ds/nsValueArray.h @@ -0,0 +1,125 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- + * + * ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is nsValueArray.h/nsValueArray.cpp code, released + * Dec 28, 2001. + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 2001 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Garrett Arch Blythe, 20-December-2001 + * + * Alternatively, the contents of this file may be used under the terms of + * either of the GNU General Public License Version 2 or later (the "GPL"), + * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ +#ifndef nsValueArray_h___ +#define nsValueArray_h___ + +// +// nsValueArray.h +// +// Implement an array class to store unsigned integer values. +// The maximum value must be known up front. Once known, the +// smallest memory representation will be attempted; i.e. if the +// maximum value was 1275, then 2 bytes (uint16) would represent each value +// in the array instead of 4 bytes (uint32). +// +#include "nscore.h" + +typedef PRUint32 nsValueArrayCount; +typedef PRUint32 nsValueArrayIndex; +typedef PRUint32 nsValueArrayValue; +#define NSVALUEARRAY_INVALID ((nsValueArrayValue)-1) + +class NS_COM nsValueArray { + public: + nsValueArray(nsValueArrayValue aMaxValue, + nsValueArrayCount aInitialCapacity = 0); + ~nsValueArray(); + + // + // Assignment. + // + public: + nsValueArray& operator=(const nsValueArray& other); + + // + // Array size information. + // Ability to add more values without growing is Capacity - Count. + // + public: + inline nsValueArrayCount Count() const { + return mCount; + } + + inline nsValueArrayCount Capacity() const { + return mCapacity; + } + + void Compact(); + + // Removes all elements from this array + inline void Clear() { + mCount = 0; + } + + // + // Array access. + // + public: + nsValueArrayValue ValueAt(nsValueArrayIndex aIndex) const; + + inline nsValueArrayValue operator[](nsValueArrayIndex aIndex) const { + return ValueAt(aIndex); + } + + nsValueArrayIndex IndexOf(nsValueArrayValue aPossibleValue) const; + + inline PRBool AppendValue(nsValueArrayValue aValue) { + return InsertValueAt(aValue, Count()); + } + + inline PRBool RemoveValue(nsValueArrayValue aValue) { + return RemoveValueAt(IndexOf(aValue)); + } + + PRBool InsertValueAt(nsValueArrayValue aValue, nsValueArrayIndex aIndex); + + PRBool RemoveValueAt(nsValueArrayIndex aIndex); + + // + // Data members. + // + private: + nsValueArrayCount mCount; + nsValueArrayCount mCapacity; + PRUint8* mValueArray; + PRUint8 mBytesPerValue; +}; + +#endif /* nsValueArray_h___ */ |