daily update on 20240403 by nitload youmu

源代码/StgSharp/Math/Scalar/SignOf.cs

@@ -0,0 +1,39 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Runtime.CompilerServices;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StgSharp.Math
+{
+    public static unsafe partial class Scaler
+    {
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static unsafe int SignOf(float x)
+        {
+            if (x == 0)
+            {
+                return 0;
+            }
+            if (x>0)
+            {
+                return 1;
+            }
+            return -1;
+        }
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static unsafe int SignOf(int x)
+        {
+            if (x == 0)
+            {
+                return 0;
+            }
+            if (x > 0)
+            {
+                return 1;
+            }
+            return -1;
+        }
+    }
+}