better to_rgba() macro

test/test_color.c3

@@ -0,0 +1,19 @@
+import std::io;
+
+struct Color { short r,g,b,a; }
+
+macro Color uint.to_rgba(uint u)
+{
+	return Color{
+		.r = (char)((u >> 24) & 0xff),
+		.g = (char)((u >> 16) & 0xff),
+		.b = (char)((u >> 8) & 0xff),
+		.a = (char)((u >> 0) & 0xff)
+	};
+}
+
+fn void main(String[] args)
+{
+	uint col = args[1].to_uint()!!;
+	io::printn(col.to_rgba());
+}