mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-06 09:05:45 +00:00
128 lines
3.9 KiB
C++
128 lines
3.9 KiB
C++
/* -*- 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 ReplaceValueAt(nsValueArrayValue aValue, nsValueArrayIndex aIndex);
|
|
|
|
PRBool RemoveValueAt(nsValueArrayIndex aIndex);
|
|
|
|
//
|
|
// Data members.
|
|
//
|
|
private:
|
|
nsValueArrayCount mCount;
|
|
nsValueArrayCount mCapacity;
|
|
PRUint8* mValueArray;
|
|
PRUint8 mBytesPerValue;
|
|
};
|
|
|
|
#endif /* nsValueArray_h___ */
|