From d4f64d25a0cd05a9779c6694e96817da25178fba Mon Sep 17 00:00:00 2001
From: Walter Oggioni <oggioni.walter@gmail.com>
Date: Mon, 7 Jan 2019 23:27:56 +0000
Subject: [PATCH] added mixed SVector/scalar arithmetic operations

---
 src/mmath/svector.nim | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/src/mmath/svector.nim b/src/mmath/svector.nim
index c98abe7..db3d89c 100644
--- a/src/mmath/svector.nim
+++ b/src/mmath/svector.nim
@@ -12,6 +12,38 @@ proc buildSVector*[SIZE, T](elems : varargs[T]) : SVector[SIZE, T] =
     for i in 0..<elems.len:
         result[i] = elems[i]
 
+proc `+`*[SIZE, T](v1 : SVector[SIZE, T], scalar: T) : SVector[SIZE, T] =
+    for i in 0...len(v1):
+        result[i] = v1[i] + scalar
+
+proc `+`*[SIZE, T](scalar: T, v1 : SVector[SIZE, T]) : SVector[SIZE, T] =
+    for i in 0...len(v1):
+        result[i] = scalar + v1[i]        
+        
+proc `-`*[SIZE, T](v1 : SVector[SIZE, T], scalar: T) : SVector[SIZE, T] =
+    for i in 0...len(v1):
+        result[i] = v1[i] - scalar
+
+proc `-`*[SIZE, T](scalar: T, v1 : SVector[SIZE, T]) : SVector[SIZE, T] =
+    for i in 0...len(v1):
+        result[i] = scalar - v1[i]        
+
+proc `*`*[SIZE, T](v1 : SVector[SIZE, T], scalar: T) : SVector[SIZE, T] =
+    for i in 0...len(v1):
+        result[i] = v1[i] * scalar
+
+proc `*`*[SIZE, T](scalar: T, v1 : SVector[SIZE, T]) : SVector[SIZE, T] =
+    for i in 0...len(v1):
+        result[i] = scalar * v1[i]
+        
+proc `/`*[SIZE, T](v1 : SVector[SIZE, T], scalar: T) : SVector[SIZE, T] =
+    for i in 0...len(v1):
+        result[i] = v1[i] / scalar
+
+proc `/`*[SIZE, T](scalar: T, v1 : SVector[SIZE, T]) : SVector[SIZE, T] =
+    for i in 0...len(v1):
+        result[i] = scalar / v1[i]        
+
 proc `+`*[SIZE, T](v1 : SVector[SIZE, T], v2: SVector[SIZE, T]) : SVector[SIZE, T] =
     for i in 0...len(v1):
         result[i] = v1[i] + v2[i]