diff --git a/array/darray.hpp b/array/darray.hpp
index ea5a67fe..aa19023b 100644
--- a/array/darray.hpp
+++ b/array/darray.hpp
@@ -85,7 +85,9 @@ namespace cruft {
 
         std::size_t size (void) const noexcept { return m_size; }
         constexpr auto capacity (void) const noexcept { return CapacityV; }
-        constexpr auto empty (void) const noexcept { return !!m_size; }
+
+        constexpr bool empty (void) const noexcept { return !!m_size; }
+        constexpr bool full (void) const noexcept { return m_size == CapacityV; }
 
 
         void erase (iterator pos)