103 lines
2.5 KiB
C#
103 lines
2.5 KiB
C#
// <copyright file="IEEE754Double.cs" company="OpenTelemetry Authors">
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// Copyright The OpenTelemetry Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// </copyright>
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using System.Runtime.InteropServices;
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namespace OpenTelemetry.Tests;
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[StructLayout(LayoutKind.Explicit)]
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public struct IEEE754Double
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{
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[FieldOffset(0)]
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public double DoubleValue = 0;
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[FieldOffset(0)]
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public long LongValue = 0;
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[FieldOffset(0)]
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public ulong ULongValue = 0;
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public IEEE754Double(double value)
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{
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this.DoubleValue = value;
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}
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public static implicit operator double(IEEE754Double value)
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{
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return value.DoubleValue;
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}
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public static IEEE754Double operator ++(IEEE754Double value)
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{
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value.ULongValue++;
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return value;
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}
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public static IEEE754Double operator --(IEEE754Double value)
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{
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value.ULongValue--;
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return value;
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}
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public static IEEE754Double FromDouble(double value)
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{
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return new IEEE754Double(value);
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}
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public static IEEE754Double FromLong(long value)
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{
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return new IEEE754Double { LongValue = value };
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}
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public static IEEE754Double FromULong(ulong value)
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{
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return new IEEE754Double { ULongValue = value };
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}
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public static IEEE754Double FromString(string value)
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{
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return IEEE754Double.FromLong(Convert.ToInt64(value.Replace(" ", string.Empty), 2));
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}
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public override string ToString()
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{
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Span<char> chars = stackalloc char[66];
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var bits = this.ULongValue;
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var index = chars.Length - 1;
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for (int i = 0; i < 52; i++)
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{
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chars[index--] = (char)(bits & 0x01 | 0x30);
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bits >>= 1;
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}
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chars[index--] = ' ';
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for (int i = 0; i < 11; i++)
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{
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chars[index--] = (char)(bits & 0x01 | 0x30);
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bits >>= 1;
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}
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chars[index--] = ' ';
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chars[index--] = (char)(bits & 0x01 | 0x30);
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return chars.ToString();
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}
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}
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