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test/micro/org/openjdk/bench/java/lang/StringOffsetByCodePoints.java
47 строк
2 KB
Sergey Tsypanov
8297561: Redundant index check in String.offsetByCodePoints()
01 дек 2022, 18:28
01 дек 2022, 18:28
c6156f9
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/* * Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package org.openjdk.bench.java.lang; import org.openjdk.jmh.annotations.*; import java.util.concurrent.TimeUnit; @Fork(3) @BenchmarkMode(Mode.AverageTime) @OutputTimeUnit(TimeUnit.NANOSECONDS) @Warmup(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS) @Measurement(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS) public class StringOffsetByCodePoints { @Benchmark public int offsetByCodePoints(Data data) { return data.value.offsetByCodePoints(data.index, data.offset); } @State(Scope.Thread) public static class Data { String value = "abc"; int index = 0; int offset = 1; } }