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-rw-r--r--guava-tests/test/com/google/common/math/MathBenchmarking.java79
1 files changed, 0 insertions, 79 deletions
diff --git a/guava-tests/test/com/google/common/math/MathBenchmarking.java b/guava-tests/test/com/google/common/math/MathBenchmarking.java
deleted file mode 100644
index 856f995..0000000
--- a/guava-tests/test/com/google/common/math/MathBenchmarking.java
+++ /dev/null
@@ -1,79 +0,0 @@
-/*
- * Copyright (C) 2011 The Guava Authors
- *
- * 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 com.google.common.math;
-
-import java.math.BigInteger;
-import java.util.Random;
-
-/**
- * Utilities for benchmarks.
- *
- * @author Louis Wasserman
- */
-final class MathBenchmarking {
- static final int ARRAY_SIZE = 0x10000;
- static final int ARRAY_MASK = 0x0ffff;
- static final Random RANDOM_SOURCE = new Random(314159265358979L);
- static final int MAX_EXPONENT = 100;
-
- /*
- * Duplicated from LongMath.
- * binomial(biggestBinomials[k], k) fits in a long, but not
- * binomial(biggestBinomials[k] + 1, k).
- */
- static final int[] biggestBinomials =
- {Integer.MAX_VALUE, Integer.MAX_VALUE, Integer.MAX_VALUE, 3810779, 121977, 16175, 4337, 1733,
- 887, 534, 361, 265, 206, 169, 143, 125, 111, 101, 94, 88, 83, 79, 76, 74, 72, 70, 69, 68,
- 67, 67, 66, 66, 66, 66};
-
- static BigInteger randomPositiveBigInteger(int numBits) {
- int digits = RANDOM_SOURCE.nextInt(numBits) + 1;
- return new BigInteger(digits, RANDOM_SOURCE).add(BigInteger.ONE);
- }
-
- static BigInteger randomNonNegativeBigInteger(int numBits) {
- int digits = RANDOM_SOURCE.nextInt(numBits) + 1;
- return new BigInteger(digits, RANDOM_SOURCE);
- }
-
- static BigInteger randomNonZeroBigInteger(int numBits) {
- BigInteger result = randomPositiveBigInteger(numBits);
- return RANDOM_SOURCE.nextBoolean() ? result : result.negate();
- }
-
- static BigInteger randomBigInteger(int numBits) {
- BigInteger result = randomNonNegativeBigInteger(numBits);
- return RANDOM_SOURCE.nextBoolean() ? result : result.negate();
- }
-
- static double randomDouble(int maxExponent) {
- double result = RANDOM_SOURCE.nextDouble();
- result = Math.scalb(result, RANDOM_SOURCE.nextInt(maxExponent + 1));
- return RANDOM_SOURCE.nextBoolean() ? result : -result;
- }
-
- /**
- * Returns a random integer between zero and {@code MAX_EXPONENT}.
- */
- static int randomExponent() {
- return RANDOM_SOURCE.nextInt(MAX_EXPONENT + 1);
- }
-
- static double randomPositiveDouble() {
- return Math.exp(randomDouble(6));
- }
-}