diff --git a/VectoCore/Utils/Formulas.cs b/VectoCore/Utils/Formulas.cs
index 5e606786855005032969c63c7ac874ad3eeae74c..4c5854a8ed3729eb83fa102637c780738c485b5a 100644
--- a/VectoCore/Utils/Formulas.cs
+++ b/VectoCore/Utils/Formulas.cs
@@ -1,4 +1,3 @@
-using System;
using TUGraz.VectoCore.Exceptions;
namespace TUGraz.VectoCore.Utils
@@ -18,9 +17,6 @@ namespace TUGraz.VectoCore.Utils
/// </summary>
public static NewtonMeter PowerToTorque(Watt power, PerSecond angularVelocity)
{
- if (Math.Abs(angularVelocity.Value()) < 1E-10) {
- throw new VectoException("Can not compute Torque for 0 angular Velocity!");
- }
return power / angularVelocity;
}
@@ -43,6 +39,11 @@ namespace TUGraz.VectoCore.Utils
/// alpha = delta_omega / dt
/// torque = I * alpha
/// </summary>
+ /// <param name="currentOmega">The current omega (new angularSpeed).</param>
+ /// <param name="previousOmega">The previous omega (old angularSpeed).</param>
+ /// <param name="inertia">The inertia parameter.</param>
+ /// <param name="dt">The dt.</param>
+ /// <returns></returns>
public static Watt InertiaPower(PerSecond currentOmega, PerSecond previousOmega, KilogramSquareMeter inertia,
Second dt)
{
diff --git a/VectoCore/Utils/SI.cs b/VectoCore/Utils/SI.cs
index f00a050abeeab27e470b384ed7321dcb9c8c86eb..036d5a2088056b05da01129bcbc7027bc938650b 100644
--- a/VectoCore/Utils/SI.cs
+++ b/VectoCore/Utils/SI.cs
@@ -1,12 +1,12 @@
using System;
-using System.CodeDom;
using System.Collections.Generic;
using System.Diagnostics;
using System.Diagnostics.CodeAnalysis;
using System.Diagnostics.Contracts;
using System.Globalization;
using System.Linq;
-using System.Runtime.CompilerServices;
+using System.Linq.Expressions;
+using System.Reflection;
using System.Runtime.Serialization;
using Newtonsoft.Json;
using TUGraz.VectoCore.Exceptions;
@@ -18,11 +18,7 @@ namespace TUGraz.VectoCore.Utils
/// </summary>
public class Scalar : SIBase<Scalar>
{
- static Scalar()
- {
- Register(val => new Scalar(val));
- }
-
+ [JsonConstructor, DebuggerHidden]
private Scalar(double val) : base(new SI(val)) {}
public static implicit operator double(Scalar self)
@@ -120,12 +116,7 @@ namespace TUGraz.VectoCore.Utils
/// </summary>
public class Newton : SIBase<Newton>
{
- static Newton()
- {
- Register(val => new Newton(val));
- }
-
- [JsonConstructor]
+ [JsonConstructor, DebuggerHidden]
private Newton(double val) : base(new SI(val).Newton) {}
/// <summary>
@@ -148,12 +139,7 @@ namespace TUGraz.VectoCore.Utils
/// </summary>
public class Radian : SIBase<Radian>
{
- static Radian()
- {
- Register(val => new Radian(val));
- }
-
- [JsonConstructor]
+ [JsonConstructor, DebuggerHidden]
private Radian(double val) : base(new SI(val).Radian) {}
}
@@ -162,12 +148,7 @@ namespace TUGraz.VectoCore.Utils
/// </summary>
public class MeterPerSquareSecond : SIBase<MeterPerSquareSecond>
{
- [DebuggerHidden]
- static MeterPerSquareSecond()
- {
- Register(val => new MeterPerSquareSecond(val));
- }
-
+ [JsonConstructor, DebuggerHidden]
protected MeterPerSquareSecond(double val) : base(new SI(val).Meter.Per.Square.Second) {}
/// <summary>
@@ -190,13 +171,7 @@ namespace TUGraz.VectoCore.Utils
/// </summary>
public class Second : SIBase<Second>
{
- [DebuggerHidden]
- static Second()
- {
- Register(val => new Second(val));
- }
-
- [JsonConstructor]
+ [JsonConstructor, DebuggerHidden]
private Second(double val) : base(new SI(val).Second) {}
}
@@ -205,11 +180,7 @@ namespace TUGraz.VectoCore.Utils
/// </summary>
public class Meter : SIBase<Meter>
{
- static Meter()
- {
- Register(val => new Meter(val));
- }
-
+ [JsonConstructor, DebuggerHidden]
protected Meter(double val) : base(new SI(val).Meter) {}
}
@@ -218,12 +189,7 @@ namespace TUGraz.VectoCore.Utils
/// </summary>
public class Kilogram : SIBase<Kilogram>
{
- static Kilogram()
- {
- Register(val => new Kilogram(val));
- }
-
- [JsonConstructor]
+ [JsonConstructor, DebuggerHidden]
protected Kilogram(double val) : base(new SI(val).Kilo.Gramm) {}
}
@@ -232,12 +198,7 @@ namespace TUGraz.VectoCore.Utils
/// </summary>
public class Ton : SIBase<Ton>
{
- static Ton()
- {
- Register(val => new Ton(val));
- }
-
- [JsonConstructor]
+ [JsonConstructor, DebuggerHidden]
protected Ton(double val) : base(new SI(val).Ton) {}
}
@@ -246,12 +207,7 @@ namespace TUGraz.VectoCore.Utils
/// </summary>
public class SquareMeter : SIBase<SquareMeter>
{
- static SquareMeter()
- {
- Register(val => new SquareMeter(val));
- }
-
- [JsonConstructor]
+ [JsonConstructor, DebuggerHidden]
private SquareMeter(double val) : base(new SI(val).Square.Meter) {}
}
@@ -260,12 +216,7 @@ namespace TUGraz.VectoCore.Utils
/// </summary>
public class CubicMeter : SIBase<CubicMeter>
{
- static CubicMeter()
- {
- Register(val => new CubicMeter(val));
- }
-
- [JsonConstructor]
+ [JsonConstructor, DebuggerHidden]
private CubicMeter(double val) : base(new SI(val).Cubic.Meter) {}
}
@@ -274,12 +225,7 @@ namespace TUGraz.VectoCore.Utils
/// </summary>
public class KilogramSquareMeter : SIBase<KilogramSquareMeter>
{
- static KilogramSquareMeter()
- {
- Register(val => new KilogramSquareMeter(val));
- }
-
- [JsonConstructor]
+ [JsonConstructor, DebuggerHidden]
protected KilogramSquareMeter(double val) : base(new SI(val).Kilo.Gramm.Square.Meter) {}
}
@@ -288,12 +234,7 @@ namespace TUGraz.VectoCore.Utils
/// </summary>
public class KilogramPerWattSecond : SIBase<KilogramPerWattSecond>
{
- static KilogramPerWattSecond()
- {
- Register(val => new KilogramPerWattSecond(val));
- }
-
- [JsonConstructor]
+ [JsonConstructor, DebuggerHidden]
protected KilogramPerWattSecond(double val) : base(new SI(val).Kilo.Gramm.Per.Watt.Second) {}
}
@@ -302,12 +243,7 @@ namespace TUGraz.VectoCore.Utils
/// </summary>
public class Watt : SIBase<Watt>
{
- static Watt()
- {
- Register(val => new Watt(val));
- }
-
- [JsonConstructor]
+ [JsonConstructor, DebuggerHidden]
private Watt(double val) : base(new SI(val).Watt) {}
/// <summary>
@@ -345,13 +281,7 @@ namespace TUGraz.VectoCore.Utils
[DebuggerDisplay("rad/s: {this} | rpm: {ConvertTo().Rounds.Per.Minute}")]
public class PerSecond : SIBase<PerSecond>
{
- [DebuggerHidden]
- static PerSecond()
- {
- Register(val => new PerSecond(val));
- }
-
- [JsonConstructor]
+ [JsonConstructor, DebuggerHidden]
private PerSecond(double val) : base(new SI(val).Per.Second) {}
}
@@ -361,12 +291,7 @@ namespace TUGraz.VectoCore.Utils
[DebuggerDisplay("{this} | {ConvertTo().Kilo.Meter.Per.Hour}")]
public class MeterPerSecond : SIBase<MeterPerSecond>
{
- static MeterPerSecond()
- {
- Register(val => new MeterPerSecond(val));
- }
-
- [JsonConstructor]
+ [JsonConstructor, DebuggerHidden]
private MeterPerSecond(double val) : base(new SI(val).Meter.Per.Second) {}
/// <summary>
@@ -432,12 +357,7 @@ namespace TUGraz.VectoCore.Utils
[DebuggerDisplay("rad/s: {this} | rpm: {ConvertTo().Rounds.Per.Minute}")]
public class RoundsPerMinute : SIBase<RoundsPerMinute>
{
- static RoundsPerMinute()
- {
- Register(val => new RoundsPerMinute(val));
- }
-
- [JsonConstructor]
+ [JsonConstructor, DebuggerHidden]
private RoundsPerMinute(double val) : base(new SI(val).Rounds.Per.Minute) {}
}
@@ -446,13 +366,7 @@ namespace TUGraz.VectoCore.Utils
/// </summary>
public class NewtonMeter : SIBase<NewtonMeter>
{
- [DebuggerHidden]
- static NewtonMeter()
- {
- Register(val => new NewtonMeter(val));
- }
-
- [JsonConstructor]
+ [JsonConstructor, DebuggerHidden]
private NewtonMeter(double val) : base(new SI(val).Newton.Meter) {}
[DebuggerHidden]
@@ -473,11 +387,28 @@ namespace TUGraz.VectoCore.Utils
return ((newtonMeter as SI) / watt).Cast<Second>();
}
+ [DebuggerHidden]
+ public static PerSecond operator /(NewtonMeter newtonMeter, NewtonMeterSecond newtonMeterSecond)
+ {
+ return ((newtonMeter as SI) / newtonMeterSecond).Cast<PerSecond>();
+ }
+
[DebuggerHidden]
public static Newton operator /(NewtonMeter newtonMeter, Meter meter)
{
return ((newtonMeter as SI) / meter).Cast<Newton>();
}
+
+ [DebuggerHidden]
+ public static NewtonMeterSecond operator /(NewtonMeter newtonMeter, PerSecond perSecond)
+ {
+ return ((newtonMeter as SI) / perSecond).Cast<NewtonMeterSecond>();
+ }
+ }
+
+ public class NewtonMeterSecond : SIBase<NewtonMeterSecond>
+ {
+ private NewtonMeterSecond(double val) : base(new SI(val).Newton.Meter.Second) {}
}
@@ -490,11 +421,9 @@ namespace TUGraz.VectoCore.Utils
{
/// <summary>
/// Static dictionary with constructors for the specialized types.
- /// Every specialized SI type needs to Register itself in a static constructor (with the method <see cref="Register"/>).
/// </summary>
private static readonly Dictionary<Type, Func<double, T>> Constructors = new Dictionary<Type, Func<double, T>>();
-
/// <summary>
/// Creates the specified special SI object.
/// </summary>
@@ -502,22 +431,20 @@ namespace TUGraz.VectoCore.Utils
[DebuggerHidden]
public static T Create(double val)
{
- RuntimeHelpers.RunClassConstructor(typeof(T).TypeHandle);
+ if (!Constructors.ContainsKey(typeof(T))) {
+ var param = Expression.Parameter(typeof(double));
+ const BindingFlags bindingFlags = BindingFlags.NonPublic | BindingFlags.Instance;
+ var ctor = typeof(T).GetConstructor(bindingFlags, null, new[] { typeof(double) }, null);
+ var lambda = Expression.Lambda<Func<double, T>>(Expression.New(ctor, param), param);
+ Constructors[typeof(T)] = lambda.Compile();
+ }
return Constructors[typeof(T)](val);
}
- /// <summary>
- /// Registers the specified constructor in the constructor list (which is used for the <see cref="Create"/> Method).
- /// </summary>
- /// <param name="func">The constructor of the specified type T.</param>
- protected static void Register(Func<double, T> func)
- {
- Constructors[typeof(T)] = func;
- }
-
/// <summary>
/// Initializes a new instance of the <see cref="SIBase{T}"/> class. Is used by specialized sub classes.
/// </summary>
+ [DebuggerHidden]
protected SIBase(SI si) : base(si) {}
public new T Abs()
@@ -735,6 +662,7 @@ namespace TUGraz.VectoCore.Utils
/// Initializes a new instance of the <see cref="SI"/> class without any units (dimensionless, scalar) [-].
/// </summary>
/// <param name="val">The value.</param>
+ [DebuggerHidden]
public SI(double val = 0.0)
{
Val = val;
@@ -783,8 +711,10 @@ namespace TUGraz.VectoCore.Utils
/// </summary>
/// <param name="val">The value.</param>
/// <param name="unit">The unit.</param>
+ [DebuggerHidden]
protected SI(double val, SI unit) : this(val, unit.Numerator, unit.Denominator) {}
+ [DebuggerHidden]
protected SI(SI si, double? factor = null, Unit? fromUnit = null, Unit? toUnit = null,
bool? reciproc = null, bool? reverse = null, int? exponent = null)
{
@@ -834,14 +764,15 @@ namespace TUGraz.VectoCore.Utils
/// <param name="toUnit">To unit.</param>
/// <param name="units">The units.</param>
/// <exception cref="VectoException"></exception>
+ [DebuggerHidden]
private void UpdateUnit(Unit? fromUnit, Unit? toUnit, ICollection<Unit> units)
{
if (Reverse && fromUnit.HasValue) {
if (units.Contains(fromUnit.Value)) {
units.Remove(fromUnit.Value);
} else {
- throw new VectoException(string.Format("Unit missing. Conversion not possible. [{0}] does not contain a [{1}].",
- string.Join(", ", units), fromUnit));
+ throw new VectoException("Unit missing. Conversion not possible. [{0}] does not contain a [{1}].",
+ string.Join(", ", units), fromUnit);
}
}
@@ -870,7 +801,7 @@ namespace TUGraz.VectoCore.Utils
{
var t = SIBase<T>.Create(Val);
if (!HasEqualUnit(t)) {
- throw new VectoException(string.Format("SI Unit Conversion failed: From {0} to {1}", this, t));
+ throw new VectoException("SI Unit Conversion failed: From {0} to {1}", this, t);
}
return t;
}
@@ -975,9 +906,8 @@ namespace TUGraz.VectoCore.Utils
{
var si = ToBasicUnits();
if (si.Numerator.Length % 2 != 0 || si.Denominator.Length % 2 != 0) {
- throw new VectoException(
- string.Format("The squareroot cannot be calculated because the Unit-Exponents are not even: [{0}]",
- si.GetUnitString()));
+ throw new VectoException("The squareroot cannot be calculated because the Unit-Exponents are not even: [{0}]",
+ si.GetUnitString());
}
var numerator = new List<Unit>();
@@ -1009,7 +939,7 @@ namespace TUGraz.VectoCore.Utils
[DebuggerHidden]
public SI Per
{
- get { return new SI(Linear, reciproc: !Reciproc); }
+ [DebuggerHidden] get { return new SI(Linear, reciproc: !Reciproc); }
}
/// <summary>
@@ -1018,7 +948,7 @@ namespace TUGraz.VectoCore.Utils
[DebuggerHidden]
public SI Cubic
{
- get { return new SI(this, exponent: 3); }
+ [DebuggerHidden] get { return new SI(this, exponent: 3); }
}
/// <summary>
@@ -1027,7 +957,7 @@ namespace TUGraz.VectoCore.Utils
[DebuggerHidden]
public SI Square
{
- get { return new SI(this, exponent: 2); }
+ [DebuggerHidden] get { return new SI(this, exponent: 2); }
}
/// <summary>
@@ -1036,7 +966,7 @@ namespace TUGraz.VectoCore.Utils
[DebuggerHidden]
public SI Linear
{
- get { return new SI(this, exponent: 1); }
+ [DebuggerHidden] get { return new SI(this, exponent: 1); }
}
/// <summary>
@@ -1045,7 +975,7 @@ namespace TUGraz.VectoCore.Utils
[DebuggerHidden]
public SI Gramm
{
- get { return new SI(new SI(this, toUnit: Unit.k), 0.001, Unit.g, Unit.g); }
+ [DebuggerHidden] get { return new SI(new SI(this, toUnit: Unit.k), 0.001, Unit.g, Unit.g); }
}
/// <summary>
@@ -1054,7 +984,7 @@ namespace TUGraz.VectoCore.Utils
[DebuggerHidden]
public SI Ton
{
- get { return new SI(new SI(this, toUnit: Unit.k), 1000, Unit.t, Unit.g); }
+ [DebuggerHidden] get { return new SI(new SI(this, toUnit: Unit.k), 1000, Unit.t, Unit.g); }
}
@@ -1064,7 +994,7 @@ namespace TUGraz.VectoCore.Utils
[DebuggerHidden]
public SI Newton
{
- get { return new SI(this, fromUnit: Unit.N, toUnit: Unit.N); }
+ [DebuggerHidden] get { return new SI(this, fromUnit: Unit.N, toUnit: Unit.N); }
}
/// <summary>
@@ -1073,7 +1003,7 @@ namespace TUGraz.VectoCore.Utils
[DebuggerHidden]
public SI Watt
{
- get { return new SI(this, fromUnit: Unit.W, toUnit: Unit.W); }
+ [DebuggerHidden] get { return new SI(this, fromUnit: Unit.W, toUnit: Unit.W); }
}
/// <summary>
@@ -1082,7 +1012,7 @@ namespace TUGraz.VectoCore.Utils
[DebuggerHidden]
public SI Meter
{
- get { return new SI(this, fromUnit: Unit.m, toUnit: Unit.m); }
+ [DebuggerHidden] get { return new SI(this, fromUnit: Unit.m, toUnit: Unit.m); }
}
/// <summary>
@@ -1091,7 +1021,7 @@ namespace TUGraz.VectoCore.Utils
[DebuggerHidden]
public SI Second
{
- get { return new SI(this, fromUnit: Unit.s, toUnit: Unit.s); }
+ [DebuggerHidden] get { return new SI(this, fromUnit: Unit.s, toUnit: Unit.s); }
}
/// <summary>
@@ -1100,7 +1030,7 @@ namespace TUGraz.VectoCore.Utils
[DebuggerHidden]
public SI Radian
{
- get { return new SI(this); }
+ [DebuggerHidden] get { return new SI(this); }
}
@@ -1110,7 +1040,7 @@ namespace TUGraz.VectoCore.Utils
[DebuggerHidden]
public SI Rounds
{
- get { return new SI(this, 2 * Math.PI); }
+ [DebuggerHidden] get { return new SI(this, 2 * Math.PI); }
}
/// <summary>
@@ -1119,7 +1049,7 @@ namespace TUGraz.VectoCore.Utils
[DebuggerHidden]
public SI Hour
{
- get { return new SI(this, 3600.0, Unit.h, Unit.s); }
+ [DebuggerHidden] get { return new SI(this, 3600.0, Unit.h, Unit.s); }
}
/// <summary>
@@ -1128,7 +1058,7 @@ namespace TUGraz.VectoCore.Utils
[DebuggerHidden]
public SI Minute
{
- get { return new SI(this, 60.0, Unit.min, Unit.s); }
+ [DebuggerHidden] get { return new SI(this, 60.0, Unit.min, Unit.s); }
}
/// <summary>
@@ -1137,7 +1067,7 @@ namespace TUGraz.VectoCore.Utils
[DebuggerHidden]
public SI Milli
{
- get { return new SI(this, 0.001, Unit.milli); }
+ [DebuggerHidden] get { return new SI(this, 0.001, Unit.milli); }
}
/// <summary>
@@ -1146,7 +1076,7 @@ namespace TUGraz.VectoCore.Utils
[DebuggerHidden]
public SI Kilo
{
- get { return new SI(this, 1000.0, Unit.k); }
+ [DebuggerHidden] get { return new SI(this, 1000.0, Unit.k); }
}
/// <summary>
@@ -1155,7 +1085,7 @@ namespace TUGraz.VectoCore.Utils
[DebuggerHidden]
public SI Centi
{
- get { return new SI(this, 0.01, Unit.c); }
+ [DebuggerHidden] get { return new SI(this, 0.01, Unit.c); }
}
#endregion
@@ -1177,8 +1107,7 @@ namespace TUGraz.VectoCore.Utils
Contract.Requires(si1 != null);
Contract.Requires(si2 != null);
if (!si1.HasEqualUnit(si2)) {
- throw new VectoException(
- string.Format("Operator '+' can only operate on SI Objects with the same unit. Got: {0} + {1}", si1, si2));
+ throw new VectoException("Operator '+' can only operate on SI Objects with the same unit. Got: {0} + {1}", si1, si2);
}
return new SI(si1.Val + si2.Val, si1.Numerator, si1.Denominator);
@@ -1199,8 +1128,7 @@ namespace TUGraz.VectoCore.Utils
Contract.Requires(si1 != null);
Contract.Requires(si2 != null);
if (!si1.HasEqualUnit(si2)) {
- throw new VectoException(
- string.Format("Operator '-' can only operate on SI Objects with the same unit. Got: {0} - {1}", si1, si2));
+ throw new VectoException("Operator '-' can only operate on SI Objects with the same unit. Got: {0} - {1}", si1, si2);
}
return new SI(si1.Val - si2.Val, si1.Numerator, si1.Denominator);
}
@@ -1280,6 +1208,13 @@ namespace TUGraz.VectoCore.Utils
{
Contract.Requires(si1 != null);
Contract.Requires(si2 != null);
+
+ if (si2.IsEqual(0)) {
+ throw new VectoException(
+ string.Format("Can not compute division by zero ([{0}] / 0[{1}])", si1.GetUnitString(), si2.GetUnitString()),
+ new DivideByZeroException());
+ }
+
var numerator = si1.Numerator.Concat(si2.Denominator);
var denominator = si1.Denominator.Concat(si2.Numerator);
return new SI(si1.Val / si2.Val, numerator, denominator);
@@ -1297,6 +1232,12 @@ namespace TUGraz.VectoCore.Utils
public static SI operator /(SI si1, double d)
{
Contract.Requires(si1 != null);
+
+ if (d.IsEqual(0)) {
+ throw new VectoException(string.Format("Can not compute division by zero ([{0}] / 0)", si1.GetUnitString()),
+ new DivideByZeroException());
+ }
+
return new SI(si1.Val / d, si1);
}
@@ -1312,6 +1253,12 @@ namespace TUGraz.VectoCore.Utils
public static SI operator /(double d, SI si1)
{
Contract.Requires(si1 != null);
+
+ if (si1.IsEqual(0)) {
+ throw new VectoException(string.Format("Can not compute division by zero (x / 0[{0}])", si1.GetUnitString()),
+ new DivideByZeroException());
+ }
+
return new SI(d / si1.Val, si1.Denominator, si1.Numerator);
}
@@ -1330,8 +1277,7 @@ namespace TUGraz.VectoCore.Utils
Contract.Requires(si1 != null);
Contract.Requires(si2 != null);
if (!si1.HasEqualUnit(si2)) {
- throw new VectoException(
- string.Format("Operator '<' can only operate on SI Objects with the same unit. Got: {0} < {1}", si1, si2));
+ throw new VectoException("Operator '<' can only operate on SI Objects with the same unit. Got: {0} < {1}", si1, si2);
}
return si1.Val < si2.Val;
}
@@ -1366,8 +1312,7 @@ namespace TUGraz.VectoCore.Utils
Contract.Requires(si1 != null);
Contract.Requires(si2 != null);
if (!si1.HasEqualUnit(si2)) {
- throw new VectoException(
- string.Format("Operator '>' can only operate on SI Objects with the same unit. Got: {0} > {1}", si1, si2));
+ throw new VectoException("Operator '>' can only operate on SI Objects with the same unit. Got: {0} > {1}", si1, si2);
}
return si1.Val > si2.Val;
}
@@ -1432,8 +1377,8 @@ namespace TUGraz.VectoCore.Utils
Contract.Requires(si1 != null);
Contract.Requires(si2 != null);
if (!si1.HasEqualUnit(si2)) {
- throw new VectoException(
- string.Format("Operator '<=' can only operate on SI Objects with the same unit. Got: {0} <= {1}", si1, si2));
+ throw new VectoException("Operator '<=' can only operate on SI Objects with the same unit. Got: {0} <= {1}", si1,
+ si2);
}
return si1.Val <= si2.Val;
}
@@ -1468,8 +1413,8 @@ namespace TUGraz.VectoCore.Utils
Contract.Requires(si1 != null);
Contract.Requires(si2 != null);
if (!si1.HasEqualUnit(si2)) {
- throw new VectoException(
- string.Format("Operator '>=' can only operate on SI Objects with the same unit. Got: {0} >= {1}", si1, si2));
+ throw new VectoException("Operator '>=' can only operate on SI Objects with the same unit. Got: {0} >= {1}", si1,
+ si2);
}
return si1.Val >= si2.Val;
}