NUMBERS-51: Class "FP64" ("double" with "Field" API).Project: http://git-wip-us.apache.org/repos/asf/commons-numbers/repo Commit: http://git-wip-us.apache.org/repos/asf/commons-numbers/commit/de85ffc2 Tree: http://git-wip-us.apache.org/repos/asf/commons-numbers/tree/de85ffc2 Diff: http://git-wip-us.apache.org/repos/asf/commons-numbers/diff/de85ffc2 Branch: refs/heads/feature__NUMBERS-51__field Commit: de85ffc2843e43e0c0e426151a995d0c7dc77673 Parents: 6d14b16 Author: Gilles Sadowski <gil...@harfang.homelinux.org> Authored: Tue Jan 30 16:49:41 2018 +0100 Committer: Gilles Sadowski <gil...@harfang.homelinux.org> Committed: Tue Jan 30 16:49:41 2018 +0100 ---------------------------------------------------------------------- .../org/apache/commons/numbers/field/FP64.java | 127 +++++++++++++++++++ .../apache/commons/numbers/field/FP64Field.java | 39 ++++++ 2 files changed, 166 insertions(+) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/commons-numbers/blob/de85ffc2/commons-numbers-field/src/main/java/org/apache/commons/numbers/field/FP64.java ---------------------------------------------------------------------- diff --git a/commons-numbers-field/src/main/java/org/apache/commons/numbers/field/FP64.java b/commons-numbers-field/src/main/java/org/apache/commons/numbers/field/FP64.java new file mode 100644 index 0000000..1bb2097 --- /dev/null +++ b/commons-numbers-field/src/main/java/org/apache/commons/numbers/field/FP64.java @@ -0,0 +1,127 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You 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 org.apache.commons.numbers.field; + +import org.apache.commons.numbers.core.NativeOperators; +import org.apache.commons.numbers.core.Precision; + +/** + * Wraps a {@code double} value in order to be used as a field + * element. + */ +public class FP64 extends Number + implements NativeOperators<FP64> { + /** Value. */ + private final double value; + + /** + * @param Value value. + */ + public FP64(double value) { + this.value = value; + } + + /** {@inheritDoc} */ + @Override + public FP64 add(FP64 a) { + return new FP64(value + a.value); + } + + /** {@inheritDoc} */ + @Override + public FP64 negate() { + return new FP64(-value); + } + + /** {@inheritDoc} */ + @Override + public FP64 multiply(FP64 a) { + return new FP64(value * a.value); + } + + /** {@inheritDoc} */ + @Override + public FP64 reciprocal() { + return new FP64(1 / value); + } + + /** {@inheritDoc} */ + @Override + public FP64 subtract(FP64 a) { + return new FP64(value - a.value); + } + + /** {@inheritDoc} */ + @Override + public FP64 divide(FP64 a) { + return new FP64(value / a.value); + } + + /** {@inheritDoc} */ + @Override + public FP64 multiply(int n) { + return new FP64(value * n); + } + + /** {@inheritDoc} */ + @Override + public boolean equals(Object other) { + if (other instanceof FP64) { + final FP64 o = (FP64) other; + return Precision.equals(value, o.value, 1); + } + return false; + } + + /** {@inheritDoc} */ + @Override + public int hashCode() { + return Double.valueOf(value).hashCode(); + } + + /** {@inheritDoc} */ + @Override + public String toString() { + return Double.toString(value); + } + + /** {@inheritDoc} */ + @Override + public double doubleValue() { + return value; + } + /** {@inheritDoc} */ + @Override + public float floatValue() { + return (float) value; + } + /** {@inheritDoc} */ + @Override + public int intValue() { + return (int) value; + } + /** {@inheritDoc} */ + @Override + public long longValue() { + return (long) value; + } + /** {@inheritDoc} */ + @Override + public byte byteValue() { + return (byte) value; + } +} http://git-wip-us.apache.org/repos/asf/commons-numbers/blob/de85ffc2/commons-numbers-field/src/main/java/org/apache/commons/numbers/field/FP64Field.java ---------------------------------------------------------------------- diff --git a/commons-numbers-field/src/main/java/org/apache/commons/numbers/field/FP64Field.java b/commons-numbers-field/src/main/java/org/apache/commons/numbers/field/FP64Field.java new file mode 100644 index 0000000..f63665c --- /dev/null +++ b/commons-numbers-field/src/main/java/org/apache/commons/numbers/field/FP64Field.java @@ -0,0 +1,39 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You 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 org.apache.commons.numbers.field; + +/** + * {@link Double} field. + */ +public class FP64Field extends AbstractField<FP64> { + /** 0d */ + private static final FP64 ZERO = new FP64(Double.valueOf(0)); + /** 1d */ + private static final FP64 ONE = new FP64(Double.valueOf(1)); + + /** {@inheritDoc} */ + @Override + public FP64 one() { + return ONE; + } + + /** {@inheritDoc} */ + @Override + public FP64 zero() { + return ZERO; + } +}
