1 /* 2 * Copyright (c) 2008, 2012, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 /* 24 */ 25 26 27 package org.graalvm.compiler.jtt.lang; 28 29 import org.junit.Test; 30 31 import org.graalvm.compiler.jtt.JTTTest; 32 33 public class StringCoding_Scale extends JTTTest { 34 35 public static float maxCharPerByte = 1.0f; 36 test(int i)37 public static int test(int i) { 38 return scale(i, maxCharPerByte); 39 } 40 41 // Copy of java.lang.StringCode.scale scale(int len, float expansionFactor)42 private static int scale(int len, float expansionFactor) { 43 // We need to perform double, not float, arithmetic; otherwise 44 // we lose low order bits when len is larger than 2**24. 45 return (int) (len * (double) expansionFactor); 46 } 47 48 @Test run0()49 public void run0() throws Throwable { 50 runTest("test", 2); 51 } 52 53 @Test run1()54 public void run1() throws Throwable { 55 runTest("test", 1); 56 } 57 58 @Test run2()59 public void run2() throws Throwable { 60 runTest("test", 0); 61 } 62 63 } 64