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/*
* Copyright (C) 2010 Google Inc.
*
* 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 benchmarks;
import com.google.caliper.Param;
import com.google.caliper.Runner;
import com.google.caliper.SimpleBenchmark;
/**
* How do the various schemes for iterating through a string compare?
*/
public class StringIterationBenchmark extends SimpleBenchmark {
public void timeStringIteration0(int reps) {
String s = "hello, world!";
for (int rep = 0; rep < reps; ++rep) {
char ch;
for (int i = 0; i < s.length(); ++i) {
ch = s.charAt(i);
}
}
}
public void timeStringIteration1(int reps) {
String s = "hello, world!";
for (int rep = 0; rep < reps; ++rep) {
char ch;
for (int i = 0, length = s.length(); i < length; ++i) {
ch = s.charAt(i);
}
}
}
public void timeStringIteration2(int reps) {
String s = "hello, world!";
for (int rep = 0; rep < reps; ++rep) {
char ch;
char[] chars = s.toCharArray();
for (int i = 0, length = chars.length; i < length; ++i) {
ch = chars[i];
}
}
}
public void timeStringToCharArray(int reps) {
String s = "hello, world!";
for (int rep = 0; rep < reps; ++rep) {
char[] chars = s.toCharArray();
}
}
}
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