remove union data

untests/vmath_mat_fun_tests.cpp

@@ -0,0 +1,18 @@
+/*******************************************************************************
+ * This file is part of the "https://github.com/blackmatov/vmath.hpp"
+ * For conditions of distribution and use, see copyright notice in LICENSE.md
+ * Copyright (C) 2020, by Matvey Cherevko (blackmatov@gmail.com)
+ ******************************************************************************/
+
+#include <vmath.hpp/vmath_mat_fun.hpp>
+
+#define CATCH_CONFIG_FAST_COMPILE
+#include <catch2/catch.hpp>
+
+namespace
+{
+}
+
+TEST_CASE("vmath/mat_fun") {
+    using namespace vmath_hpp;
+}