Merge pull request #3901 from Sergio0694/bugfix/span2d-copyto-exception-info

Fixed exception message and docs for Span2D<T>.CopyTo(Span2D<T>)

Author: michael-hawker

Microsoft.Toolkit.HighPerformance/Memory/Internals/ThrowHelper.cs

@@ -27,6 +27,14 @@ public static void ThrowArgumentExceptionForDestinationTooShort()
             throw new ArgumentException("The target span is too short to copy all the current items to");
         }
 
+        /// <summary>
+        /// Throws an <see cref="ArgumentException"/> when the target span does not have the same shape as the source.
+        /// </summary>
+        public static void ThrowArgumentExceptionForDestinationWithNotSameShape()
+        {
+            throw new ArgumentException("The target span does not have the same shape as the source one");
+        }
+
         /// <summary>
         /// Throws an <see cref="ArrayTypeMismatchException"/> when using an array of an invalid type.
         /// </summary>

Microsoft.Toolkit.HighPerformance/Memory/ReadOnlySpan2D{T}.cs

@@ -654,14 +654,14 @@ public void CopyTo(Span<T> destination)
         /// </summary>
         /// <param name="destination">The destination <see cref="Span2D{T}"/> instance.</param>
         /// <exception cref="ArgumentException">
-        /// Thrown when <paramref name="destination" /> is shorter than the source <see cref="ReadOnlySpan2D{T}"/> instance.
+        /// Thrown when <paramref name="destination" /> does not have the same shape as the source <see cref="ReadOnlySpan2D{T}"/> instance.
         /// </exception>
         public void CopyTo(Span2D<T> destination)
         {
             if (destination.Height != Height ||
                 destination.Width != Width)
             {
-                ThrowHelper.ThrowArgumentException();
+                ThrowHelper.ThrowArgumentExceptionForDestinationWithNotSameShape();
             }
 
             if (IsEmpty)

Microsoft.Toolkit.HighPerformance/Memory/Span2D{T}.cs

@@ -767,14 +767,14 @@ public void CopyTo(Span<T> destination)
         /// </summary>
         /// <param name="destination">The destination <see cref="Span2D{T}"/> instance.</param>
         /// <exception cref="ArgumentException">
-        /// Thrown when <paramref name="destination" /> is shorter than the source <see cref="Span2D{T}"/> instance.
+        /// Thrown when <paramref name="destination" /> does not have the same shape as the source <see cref="Span2D{T}"/> instance.
         /// </exception>
         public void CopyTo(Span2D<T> destination)
         {
             if (destination.Height != Height ||
                 destination.width != this.width)
             {
-                ThrowHelper.ThrowArgumentException();
+                ThrowHelper.ThrowArgumentExceptionForDestinationWithNotSameShape();
             }
 
             if (IsEmpty)