1 files changed, 22 insertions, 0 deletions
diff --git a/asl/meta/quals.hpp b/asl/meta/quals.hpp
new file mode 100644
index 0000000..9671043
--- /dev/null
+++ b/asl/meta/quals.hpp
@@ -0,0 +1,22 @@
+#pragma once
+
+#include "asl/meta/types.hpp"
+#include "asl/meta/funcs.hpp"
+#include "asl/meta/refs.hpp"
+#include "asl/meta/internal/quals.hpp"
+
+namespace asl {
+    
+template<typename T> concept is_const = internal::is_const<T>;
+template<typename T> concept is_volatile = !is_any_ref<T> && !is_func<T> && same<T, typename internal::volatile_helper<T>::add>;
+
+template<typename T> using as_const_t = internal::const_helper<T>::add;
+template<typename T> using un_const_t = internal::const_helper<T>::remove;
+
+template<typename T> using as_volatile_t = internal::volatile_helper<T>::add;
+template<typename T> using un_volatile_t = internal::volatile_helper<T>::remove;
+
+template<typename T> using un_qual_t = un_volatile_t<un_const_t<T>>;
+
+} // namespace asl
+