Mercurial > hg > Members > kono > jpf-core
view src/main/gov/nasa/jpf/util/ExpGrowth.java @ 0:61d41facf527
initial v8 import (history reset)
author | Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> |
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date | Fri, 23 Jan 2015 10:14:01 -0800 |
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/* * Copyright (C) 2014, United States Government, as represented by the * Administrator of the National Aeronautics and Space Administration. * All rights reserved. * * The Java Pathfinder core (jpf-core) platform is licensed under the * Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0. * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package gov.nasa.jpf.util; public class ExpGrowth implements Growth { final float factor; final float sqFactor; final int plus; public ExpGrowth(float factor, int plus) { if (factor < 1.001F || factor > 100.F) { throw new IllegalArgumentException(); } this.factor = factor; this.sqFactor = (float) Math.sqrt(factor); this.plus = plus; } public ExpGrowth(float factor) { this(factor,7); } @Override public int grow(int oldSize, int minNewSize) { int newSize = (int)(factor * oldSize) + plus; if (newSize < minNewSize) { newSize = (int)(sqFactor * minNewSize) + plus; } return newSize; } }