pjs/parser/html/jArray.h

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2.9 KiB
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/* ***** 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 HTML Parser C++ Translator code.
*
* The Initial Developer of the Original Code is
* Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2008
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Henri Sivonen <hsivonen@iki.fi>
*
* 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 ***** */
#ifndef jArray_h__
#define jArray_h__
#define J_ARRAY_STATIC(T, L, arr) \
jArray<T,L>( ((T*)arr), (sizeof(arr)/sizeof(arr[0])) )
template<class T, class L>
class jArray {
private:
T* arr;
public:
L length;
jArray(T* const a, L const len);
jArray(L const len);
jArray(const jArray<T,L>& other);
jArray();
operator T*() { return arr; }
T& operator[] (L const index) { return arr[index]; }
void release() { delete[] arr; arr = 0; length = 0; }
L binarySearch(T const elem);
};
template<class T, class L>
jArray<T,L>::jArray(T* const a, L const len)
: arr(a), length(len)
{
}
template<class T, class L>
jArray<T,L>::jArray(L const len)
: arr(len ? new T[len] : 0), length(len)
{
}
template<class T, class L>
jArray<T,L>::jArray(const jArray<T,L>& other)
: arr(other.arr), length(other.length)
{
}
template<class T, class L>
jArray<T,L>::jArray()
: arr(0), length(0)
{
}
template<class T, class L>
L
jArray<T,L>::binarySearch(T const elem)
{
L lo = 0;
L hi = length - 1;
while (lo <= hi) {
L mid = (lo + hi) / 2;
if (arr[mid] > elem) {
hi = mid - 1;
} else if (arr[mid] < elem) {
lo = mid + 1;
} else {
return mid;
}
}
return -1;
}
#endif // jArray_h__