Christoph Ruegg
14 years ago
6 changed files with 265 additions and 14 deletions
@ -0,0 +1,55 @@ |
|||
using System; |
|||
using MathNet.Numerics.Properties; |
|||
|
|||
namespace MathNet.Numerics.LinearAlgebra.Storage |
|||
{ |
|||
// ReSharper disable UnusedParameter.Global
|
|||
public partial class VectorStorage<T> |
|||
{ |
|||
protected void ValidateRange(int index) |
|||
{ |
|||
if (index < 0 || index >= Length) |
|||
{ |
|||
throw new ArgumentOutOfRangeException("index"); |
|||
} |
|||
} |
|||
|
|||
protected void ValidateSubVectorRange(VectorStorage<T> target, |
|||
int sourceIndex, int targetIndex, int count) |
|||
{ |
|||
if (count < 1) |
|||
{ |
|||
throw new ArgumentOutOfRangeException("count", Resources.ArgumentMustBePositive); |
|||
} |
|||
|
|||
// Verify Source
|
|||
|
|||
if (sourceIndex >= Length || sourceIndex < 0) |
|||
{ |
|||
throw new ArgumentOutOfRangeException("sourceIndex"); |
|||
} |
|||
|
|||
var sourceMax = sourceIndex + count; |
|||
|
|||
if (sourceMax > Length) |
|||
{ |
|||
throw new ArgumentOutOfRangeException("count"); |
|||
} |
|||
|
|||
// Verify Target
|
|||
|
|||
if (targetIndex >= target.Length || targetIndex < 0) |
|||
{ |
|||
throw new ArgumentOutOfRangeException("targetIndex"); |
|||
} |
|||
|
|||
var targetMax = targetIndex + count; |
|||
|
|||
if (targetMax > target.Length) |
|||
{ |
|||
throw new ArgumentOutOfRangeException("count"); |
|||
} |
|||
} |
|||
} |
|||
// ReSharper restore UnusedParameter.Global
|
|||
} |
|||
@ -0,0 +1,199 @@ |
|||
using System; |
|||
using MathNet.Numerics.Properties; |
|||
|
|||
namespace MathNet.Numerics.LinearAlgebra.Storage |
|||
{ |
|||
public abstract partial class VectorStorage<T> : IEquatable<VectorStorage<T>> |
|||
where T : struct, IEquatable<T>, IFormattable |
|||
{ |
|||
// [ruegg] public fields are OK here
|
|||
|
|||
public readonly int Length; |
|||
|
|||
protected VectorStorage(int length) |
|||
{ |
|||
if (length <= 0) |
|||
{ |
|||
throw new ArgumentOutOfRangeException(Resources.ArgumentMustBePositive); |
|||
} |
|||
|
|||
Length = length; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Gets or sets the value at the given index, with range checking.
|
|||
/// </summary>
|
|||
/// <param name="index">
|
|||
/// The index of the element.
|
|||
/// </param>
|
|||
/// <value>The value to get or set.</value>
|
|||
/// <remarks>This method is ranged checked. <see cref="At(int)"/> and <see cref="At(int,T)"/>
|
|||
/// to get and set values without range checking.</remarks>
|
|||
public T this[int index] |
|||
{ |
|||
get |
|||
{ |
|||
ValidateRange(index); |
|||
return At(index); |
|||
} |
|||
|
|||
set |
|||
{ |
|||
ValidateRange(index); |
|||
At(index, value); |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Retrieves the requested element without range checking.
|
|||
/// </summary>
|
|||
/// <param name="index">The index of the element.</param>
|
|||
/// <returns>The requested element.</returns>
|
|||
/// <remarks>Not range-checked.</remarks>
|
|||
public abstract T At(int index); |
|||
|
|||
/// <summary>
|
|||
/// Sets the element without range checking.
|
|||
/// </summary>
|
|||
/// <param name="index">The index of the element.</param>
|
|||
/// <param name="value">The value to set the element to. </param>
|
|||
/// <remarks>WARNING: This method is not thread safe. Use "lock" with it and be sure to avoid deadlocks.</remarks>
|
|||
public abstract void At(int index, T value); |
|||
|
|||
/// <summary>
|
|||
/// True if all fields of this vector can be set to any value.
|
|||
/// False if some fields are fixed.
|
|||
/// </summary>
|
|||
public virtual bool IsFullyMutable |
|||
{ |
|||
get { return true; } |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// True if the specified field can be set to any value.
|
|||
/// False if the field is fixed.
|
|||
/// </summary>
|
|||
public virtual bool IsMutable(int index) |
|||
{ |
|||
return true; |
|||
} |
|||
|
|||
public virtual void Clear() |
|||
{ |
|||
for (var i = 0; i < Length; i++) |
|||
{ |
|||
At(i, default(T)); |
|||
} |
|||
} |
|||
|
|||
public virtual void Clear(int index, int count) |
|||
{ |
|||
for (var i = index; i < index + count; i++) |
|||
{ |
|||
At(i, default(T)); |
|||
} |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Indicates whether the current object is equal to another object of the same type.
|
|||
/// </summary>
|
|||
/// <param name="other">
|
|||
/// An object to compare with this object.
|
|||
/// </param>
|
|||
/// <returns>
|
|||
/// <c>true</c> if the current object is equal to the <paramref name="other"/> parameter; otherwise, <c>false</c>.
|
|||
/// </returns>
|
|||
public virtual bool Equals(VectorStorage<T> other) |
|||
{ |
|||
// Reject equality when the argument is null or has a different shape.
|
|||
if (other == null) |
|||
{ |
|||
return false; |
|||
} |
|||
if (Length != other.Length) |
|||
{ |
|||
return false; |
|||
} |
|||
|
|||
// Accept if the argument is the same object as this.
|
|||
if (ReferenceEquals(this, other)) |
|||
{ |
|||
return true; |
|||
} |
|||
|
|||
// If all else fails, perform element wise comparison.
|
|||
for (var index = 0; index < Length; index++) |
|||
{ |
|||
if (!At(index).Equals(other.At(index))) |
|||
{ |
|||
return false; |
|||
} |
|||
} |
|||
|
|||
return true; |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Determines whether the specified <see cref="T:System.Object"/> is equal to the current <see cref="T:System.Object"/>.
|
|||
/// </summary>
|
|||
/// <returns>
|
|||
/// true if the specified <see cref="T:System.Object"/> is equal to the current <see cref="T:System.Object"/>; otherwise, false.
|
|||
/// </returns>
|
|||
/// <param name="obj">The <see cref="T:System.Object"/> to compare with the current <see cref="T:System.Object"/>. </param>
|
|||
public override sealed bool Equals(object obj) |
|||
{ |
|||
return Equals(obj as MatrixStorage<T>); |
|||
} |
|||
|
|||
/// <summary>
|
|||
/// Serves as a hash function for a particular type.
|
|||
/// </summary>
|
|||
/// <returns>
|
|||
/// A hash code for the current <see cref="T:System.Object"/>.
|
|||
/// </returns>
|
|||
public override int GetHashCode() |
|||
{ |
|||
var hashNum = Math.Min(Length, 25); |
|||
int hash = 17; |
|||
unchecked |
|||
{ |
|||
for (var i = 0; i < hashNum; i++) |
|||
{ |
|||
hash = hash*31 + At(i).GetHashCode(); |
|||
} |
|||
} |
|||
return hash; |
|||
} |
|||
|
|||
/// <remarks>Parameters assumed to be validated already.</remarks>
|
|||
public virtual void CopyTo(VectorStorage<T> target, bool skipClearing = false) |
|||
{ |
|||
for (int i = 0; i < Length; i++) |
|||
{ |
|||
target.At(i, At(i)); |
|||
} |
|||
} |
|||
|
|||
public virtual void CopySubVectorTo(VectorStorage<T> target, |
|||
int sourceIndex, int targetIndex, int count, |
|||
bool skipClearing = false) |
|||
{ |
|||
if (target == null) |
|||
{ |
|||
throw new ArgumentNullException("target"); |
|||
} |
|||
|
|||
if (ReferenceEquals(this, target)) |
|||
{ |
|||
throw new NotSupportedException(); |
|||
} |
|||
|
|||
ValidateSubVectorRange(target, sourceIndex, targetIndex, count); |
|||
|
|||
for (int i = sourceIndex, ii = targetIndex; i < sourceIndex + count; i++, ii++) |
|||
{ |
|||
target.At(ii, At(i)); |
|||
} |
|||
} |
|||
} |
|||
} |
|||
Loading…
Reference in new issue