add NDArray to ValueType

Author: Oceania2018

src/NumSharp.Core/Casting/Implicit/NdArray.Implicit.ValueTypes.cs

@@ -23,13 +23,20 @@
 using System.Text;
 using System.Globalization;
 using System.Collections;
-using NumSharp.Core;
 using System.Numerics;
 
 namespace NumSharp.Core
 {
     public partial class NDArray
     {
+        public static implicit operator NDArray(float d)
+        {
+            var ndArray = new NDArray(typeof(float), new int[0]);
+            ndArray.Storage.SetData(new float[] { d });
+
+            return ndArray;
+        }
+
         public static implicit operator float(NDArray nd)
         {
             if (nd.ndim > 0)
@@ -38,20 +45,20 @@ public static implicit operator float(NDArray nd)
             return nd.Data<float>(0);
         }
 
-        public static implicit operator NDArray(float d)
+        public static implicit operator NDArray(double d)
         {
-            var ndArray = new NDArray(typeof(float), new int[0]);
-            ndArray.Storage.SetData(new float[] { d });
+            var ndArray = new NDArray(typeof(double),new int[0]);
+            ndArray.Storage.SetData(new double[]{d});
 
             return ndArray;
         }
 
-        public static implicit operator NDArray(double d)
+        public static implicit operator double(NDArray nd)
         {
-            var ndArray = new NDArray(typeof(double),new int[0]);
-            ndArray.Storage.SetData(new double[]{d});
+            if (nd.ndim > 0)
+                throw new IncorrectShapeException();
 
-            return ndArray;
+            return nd.Data<double>(0);
         }
 
         public static implicit operator NDArray(short d)
@@ -62,6 +69,14 @@ public static implicit operator NDArray(short d)
             return ndArray;
         }
 
+        public static implicit operator short(NDArray nd)
+        {
+            if (nd.ndim > 0)
+                throw new IncorrectShapeException();
+
+            return nd.Data<short>(0);
+        }
+
         public static implicit operator NDArray(int d)
         {
             var ndArray = new NDArray(typeof(int),new int[0]);
@@ -70,6 +85,14 @@ public static implicit operator NDArray(int d)
             return ndArray;
         }
 
+        public static implicit operator int(NDArray nd)
+        {
+            if (nd.ndim > 0)
+                throw new IncorrectShapeException();
+
+            return nd.Data<int>(0);
+        }
+
         public static implicit operator NDArray(long d)
         {
             var ndArray = new NDArray(typeof(Int64),new int[0]);
@@ -78,6 +101,14 @@ public static implicit operator NDArray(long d)
             return ndArray;
         }
 
+        public static implicit operator long(NDArray nd)
+        {
+            if (nd.ndim > 0)
+                throw new IncorrectShapeException();
+
+            return nd.Data<long>(0);
+        }
+
         public static implicit operator NDArray(Complex d)
         {
             var ndArray = new NDArray(typeof(Complex),new int[0]);

src/NumSharp.Core/NumSharp.Core.csproj

@@ -11,12 +11,12 @@
     <PackageProjectUrl>https://github.com/SciSharp</PackageProjectUrl>
     <Copyright>Apache 2.0</Copyright>
     <RepositoryUrl>https://github.com/SciSharp/NumSharp</RepositoryUrl>
-    <PackageReleaseNotes>Improvements</PackageReleaseNotes>
-    <AssemblyVersion>0.6.5.0</AssemblyVersion>
-    <FileVersion>0.6.5.0</FileVersion>
+    <PackageReleaseNotes>add NDArray to ValueType</PackageReleaseNotes>
+    <AssemblyVersion>0.6.6.0</AssemblyVersion>
+    <FileVersion>0.6.6.0</FileVersion>
     <RepositoryType>git</RepositoryType>
     <PackageTags>NumPy, NumSharp, MachineLearning, Math, Scientific, Numeric</PackageTags>
-    <Version>0.6.5</Version>
+    <Version>0.6.6</Version>
     <PackageLicenseUrl>LICENSE</PackageLicenseUrl>
     <LangVersion>latest</LangVersion>
     <PackageIconUrl>https://avatars3.githubusercontent.com/u/44989469?s=200&amp;v=4</PackageIconUrl>