constexpr

Author: igagis

src/r4/vector.hpp

@@ -674,7 +674,7 @@ class vector :
 	 * @param num - scalar to multiply by.
 	 * @return Reference to this vector object.
 	 */
-	vector& operator*=(component_type num) noexcept
+	constexpr vector& operator*=(component_type num) noexcept
 	{
 		return this->comp_operation([&num](auto& a) {
 			return a * num;
@@ -687,7 +687,7 @@ class vector :
 	 * @param num - scalar to multiply by.
 	 * @return Vector resulting from multiplication of this vector by scalar.
 	 */
-	vector operator*(component_type num) const noexcept
+	constexpr vector operator*(component_type num) const noexcept
 	{
 		return (vector(*this) *= num);
 	}

tests/unit/src/vector4.cpp

@@ -534,5 +534,21 @@ const tst::set set("vector4", [](tst::suite& suite){
 		tst::check_eq(r[2], -4, SL);
 		tst::check_eq(r[3], -6, SL);
     });
+
+    suite.add("constexprness", [](){
+        // operator/(number)
+        {
+            constexpr auto v = r4::vector4<unsigned>(10, 20, 30, 40) / 2;
+            tst::check_eq(v, r4::vector4<unsigned>(10, 20, 30, 40) / 2, SL);
+        }
+
+        // operator*(number)
+        {
+            constexpr auto v = r4::vector4<unsigned>(10, 20, 30, 40) * 2;
+            tst::check_eq(v, r4::vector4<unsigned>(10, 20, 30, 40) * 2, SL);
+        }
+
+        // TODO: add other operators and functions
+    });
 });
 }