From ec9e34c97054e2c81857e71fd0ff98ffce92bae7 Mon Sep 17 00:00:00 2001
From: "Justin C. Miller" <justin@devjustinian.com>
Date: Sun, 25 Jul 2021 23:30:37 -0700
Subject: [PATCH] [kutil] Add bitfiled::has() for non-marked enums

Added a simple helper function for testing non-marked enum bitfields.
---
 src/libraries/kutil/include/kutil/enum_bitfields.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/libraries/kutil/include/kutil/enum_bitfields.h b/src/libraries/kutil/include/kutil/enum_bitfields.h
index d4ad2b7..6e24c2b 100644
--- a/src/libraries/kutil/include/kutil/enum_bitfields.h
+++ b/src/libraries/kutil/include/kutil/enum_bitfields.h
@@ -86,6 +86,16 @@ template <typename E>
 constexpr typename std::enable_if<is_enum_bitfield(E{}),bool>::type
 operator && (E rhs, E lhs) { return (rhs & lhs) == lhs; }
 
+/// Generic 'has' for non-marked bitfields
+template <typename E, typename F>
+constexpr bool has(E set, F flags)
+{
+	return
+		(static_cast<typename integral<E>::type>(set) &
+		static_cast<typename integral<F>::type>(flags)) ==
+		static_cast<typename integral<F>::type>(flags);
+}
+
 } // namespace bitfields
 } // namespace kutil