view: prefer construction using explicit size over pointer arithmetic

This simplifies step through debugging on some containers.

test/view.cpp

@@ -28,6 +28,13 @@ main (int, char**)
             "string/pointer-view equality");
     }
 
+    // construction from a std::array
+    {
+        std::array<std::byte,16> raw;
+        cruft::view obj { raw };
+        tap.expect_eq (obj.size (), raw.size (), "std::array construction size matches");
+    }
+
     // comparator tests
     {
         static const struct {

view.hpp

@@ -172,14 +172,14 @@ namespace cruft {
         //---------------------------------------------------------------------
         template <typename CharT, typename Traits, typename Allocator>
         view (std::basic_string<CharT,Traits,Allocator> &val):
-            view (std::data (val), std::data (val) + std::size (val))
+            view (std::data (val), std::size (val))
         { ; }
 
 
         //---------------------------------------------------------------------
         template <typename CharT, typename Traits, typename Allocator>
         view (const std::basic_string<CharT,Traits,Allocator> &val):
-            view (std::data (val), std::data (val) + std::size (val))
+            view (std::data (val), std::size (val))
         { ; }
 
 
@@ -193,14 +193,14 @@ namespace cruft {
         //---------------------------------------------------------------------
         template <typename ValueT, typename AllocatorT>
         view (std::vector<ValueT,AllocatorT> &rhs):
-            view (std::data (rhs), std::data (rhs) + std::size (rhs))
+            view (std::data (rhs), std::size (rhs))
         { ; }
 
 
         //---------------------------------------------------------------------
         template <typename ValueT, std::size_t N>
         view (std::array<ValueT,N> &rhs):
-            view (std::data (rhs), std::data (rhs) + std::size (rhs))
+            view (std::data (rhs), std::size (rhs))
         { ; }