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Java example source code file (MathPreconditions.java)
The MathPreconditions.java Java example source code/* * 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 com.google.common.annotations.GwtCompatible; import com.google.errorprone.annotations.CanIgnoreReturnValue; import java.math.BigInteger; import javax.annotation.Nullable; /** * A collection of preconditions for math functions. * * @author Louis Wasserman */ @GwtCompatible @CanIgnoreReturnValue final class MathPreconditions { static int checkPositive(@Nullable String role, int x) { if (x <= 0) { throw new IllegalArgumentException(role + " (" + x + ") must be > 0"); } return x; } static long checkPositive(@Nullable String role, long x) { if (x <= 0) { throw new IllegalArgumentException(role + " (" + x + ") must be > 0"); } return x; } static BigInteger checkPositive(@Nullable String role, BigInteger x) { if (x.signum() <= 0) { throw new IllegalArgumentException(role + " (" + x + ") must be > 0"); } return x; } static int checkNonNegative(@Nullable String role, int x) { if (x < 0) { throw new IllegalArgumentException(role + " (" + x + ") must be >= 0"); } return x; } static long checkNonNegative(@Nullable String role, long x) { if (x < 0) { throw new IllegalArgumentException(role + " (" + x + ") must be >= 0"); } return x; } static BigInteger checkNonNegative(@Nullable String role, BigInteger x) { if (x.signum() < 0) { throw new IllegalArgumentException(role + " (" + x + ") must be >= 0"); } return x; } static double checkNonNegative(@Nullable String role, double x) { if (!(x >= 0)) { // not x < 0, to work with NaN. throw new IllegalArgumentException(role + " (" + x + ") must be >= 0"); } return x; } static void checkRoundingUnnecessary(boolean condition) { if (!condition) { throw new ArithmeticException("mode was UNNECESSARY, but rounding was necessary"); } } static void checkInRange(boolean condition) { if (!condition) { throw new ArithmeticException("not in range"); } } static void checkNoOverflow(boolean condition) { if (!condition) { throw new ArithmeticException("overflow"); } } private MathPreconditions() {} } Other Java examples (source code examples)Here is a short list of links related to this Java MathPreconditions.java source code file: |
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