Add some utilities.

library/include/ck/library/utility/fill.hpp

@@ -112,6 +112,15 @@ struct FillConstant
     {
         std::fill(first, last, value_);
     }
+
+    template <typename ForwardRange>
+    auto operator()(ForwardRange&& range) const -> std::void_t<
+        decltype(std::declval<const FillConstant&>()(std::begin(std::forward<ForwardRange>(range)),
+                                                     std::end(std::forward<ForwardRange>(range))))>
+    {
+        (*this)(std::begin(std::forward<ForwardRange>(range)),
+                std::end(std::forward<ForwardRange>(range)));
+    }
 };
 
 } // namespace utils

library/include/ck/library/utility/host_tensor.hpp

@@ -33,9 +33,10 @@ std::ostream& LogRange(std::ostream& os, Range&& range, std::string delim)
 }
 
 template <typename T, typename Range>
-std::ostream& LogRangeAsType(std::ostream& os, Range&& range, std::string delim)
+std::ostream& LogRangeAsType(std::ostream& os, Range&& range, std::string delim, int row_size = 16)
 {
     bool first = true;
+    int col    = 0;
     for(auto&& v : range)
     {
         if(first)
@@ -43,6 +44,8 @@ std::ostream& LogRangeAsType(std::ostream& os, Range&& range, std::string delim)
         else
             os << delim;
         os << static_cast<T>(v);
+        if((++col % row_size) == 0)
+            os << "\n";
     }
     return os;
 }