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69 lines
1.8 KiB
Java
69 lines
1.8 KiB
Java
/*
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XOWA: the XOWA Offline Wiki Application
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Copyright (C) 2012 gnosygnu@gmail.com
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as
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published by the Free Software Foundation, either version 3 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package gplx;
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public class Int_ary {
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private int[] ary; private int len, max;
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public Int_ary(int max) {
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this.len = 0;
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this.max = max;
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this.ary = new int[max];
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}
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public int[] Ary() {return ary;}
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public void Clear() {
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for (int i = 0; i < len; ++i)
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ary[i] = 0;
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len = 0;
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}
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public int Len() {return len;}
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public void Add(int v) {
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if (len == max) {
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int new_max = max * 2;
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int[] new_ary = new int[new_max];
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for (int i = 0; i < len; ++i)
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new_ary[i] = ary[i];
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this.ary = new_ary;
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this.max = new_max;
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}
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ary[len] = v;
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++len;
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}
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public int Pop_or(int or) {
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if (len == 0) return or;
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int rv = ary[len - 1];
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--len;
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return rv;
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}
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public int Idx_of(int key) {
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for (int i = len - 1; i > -1; --i) {
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int val = ary[i];
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if (val == key) return i;
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}
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return -1;
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}
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public boolean Del_by_key_from_end(int key) {
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int key_idx = Idx_of(key); if (key_idx == -1) return false;
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int last_idx = len - 1;
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for (int i = key_idx; i < last_idx; ++i)
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ary[i] = ary[i + 1];
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ary[last_idx] = 0;
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--len;
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return true;
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}
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public int Get_at(int i) {return ary[i];}
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}
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