mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-30 05:35:31 +00:00
92 lines
2.9 KiB
C++
92 lines
2.9 KiB
C++
/* ***** 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 mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is Netscape Communications Corp.
|
|
* Portions created by the Initial Developer are Copyright (C) 1998
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either 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 ***** */
|
|
|
|
#include "intcnt.h"
|
|
|
|
IntCount::IntCount() : numInts(0), iPair(0) { }
|
|
IntCount::~IntCount() { delete [] iPair;}
|
|
int IntCount::getSize() {return numInts;}
|
|
int IntCount::getCount(int pos) {return iPair[pos].cnt;}
|
|
int IntCount::getIndex(int pos) {return iPair[pos].idx;}
|
|
|
|
int IntCount::countAdd(int index, int increment)
|
|
{
|
|
if(numInts) {
|
|
// Do a binary search to find the element
|
|
int divPoint = 0;
|
|
|
|
if(index>iPair[numInts-1].idx) {
|
|
divPoint = numInts;
|
|
} else if(index<iPair[0].idx) {
|
|
divPoint = 0;
|
|
} else {
|
|
int low=0, high=numInts-1;
|
|
int mid = (low+high)/2;
|
|
while(1) {
|
|
mid = (low+high)/2;
|
|
|
|
if(index<iPair[mid].idx) {
|
|
high = mid;
|
|
} else if(index>iPair[mid].idx) {
|
|
if(mid<numInts-1 && index<iPair[mid+1].idx) {
|
|
divPoint = mid+1;
|
|
break;
|
|
} else {
|
|
low = mid+1;
|
|
}
|
|
} else if(index==iPair[mid].idx) {
|
|
return iPair[mid].cnt += increment;
|
|
}
|
|
}
|
|
}
|
|
|
|
int i;
|
|
IntPair *tpair = new IntPair[numInts+1];
|
|
for(i=0; i<divPoint; i++) tpair[i] = iPair[i];
|
|
for(i=divPoint; i<numInts; i++) tpair[i+1] = iPair[i];
|
|
++numInts;
|
|
delete [] iPair;
|
|
iPair = tpair;
|
|
iPair[divPoint].idx = index;
|
|
iPair[divPoint].cnt = increment;
|
|
return increment;
|
|
} else {
|
|
iPair = new IntPair[1];
|
|
numInts = 1;
|
|
iPair[0].idx = index;
|
|
return iPair[0].cnt = increment;
|
|
}
|
|
}
|