diff --git a/Testing/printDebugging.h b/Testing/printDebugging.h
index 9610a3f..c6f86de 100644
--- a/Testing/printDebugging.h
+++ b/Testing/printDebugging.h
@@ -41,10 +41,9 @@ namespace Alepha::Hydrogen::Testing  ::detail::  printDebugging_m
 	using namespace std::literals::string_literals;
 
 	template< OutputMode outputMode, typename T >
-	std::string
-	stringifyValue( const T &v )
+	void
+	streamValue( const T &v, std::ostream &oss )
 	{
-		std::ostringstream oss;
 		if constexpr( false ) ; // To keep the rest of the clauses regular
 		else if constexpr( std::is_same_v< std::uint8_t, std::decay_t< T > > )
 		{
@@ -68,11 +67,12 @@ namespace Alepha::Hydrogen::Testing  ::detail::  printDebugging_m
 		}
 		else if constexpr( Meta::is_ostreamable_v< T > )
 		{
-			return IOStreams::stringify( v );
+			oss << v;
 		}
 		else if constexpr( Meta::is_optional_v< T > )
 		{
-			return v.has_value() ? stringifyValue< outputMode >( v.value() ) : "<noopt>"s;
+			if( not v.has_value() ) oss << "<noopt>";
+			else streamValue< outputMode >( v.value(), oss );
 		}
 		else if constexpr( Meta::is_sequence_v< T > )
 		{
@@ -85,14 +85,19 @@ namespace Alepha::Hydrogen::Testing  ::detail::  printDebugging_m
 				oss << Meta::sequence_kind_v< T > << "(" << v.size() << " elements):\n{" << std::endl;
 
 				int index= 0;
-				for( const auto &elem: v ) oss << "\t" << index++ << ":  " << stringifyValue< outputMode >( elem ) << "," << std::endl;
+				for( const auto &elem: v )
+				{
+					oss << "\t" << index++ << ":  ";
+					streamValue< outputMode >( elem, oss );
+					oss << "," << std::endl;
+				}
 				oss << "}" << std::endl;
 			}
 		}
 		else if constexpr( Meta::is_pair_v< T > )
 		{
 			const auto &[ first, second ]= v;
-			return stringifyValue< outputMode >( std::tie( first, second ) );
+			streamValue< outputMode >( std::tie( first, second ), oss );
 		}
 		else if constexpr( Meta::is_tuple_v< T > )
 		{
@@ -101,7 +106,8 @@ namespace Alepha::Hydrogen::Testing  ::detail::  printDebugging_m
 			{
 				if( not first ) oss << ", ";
 				first= false;
-				oss << std::endl << stringifyValue< outputMode >( elem );
+				oss << std::endl;
+				streamValue< outputMode >( elem, oss );
 			};
 			oss << std::endl << ']' << std::endl;
 		}
@@ -109,7 +115,7 @@ namespace Alepha::Hydrogen::Testing  ::detail::  printDebugging_m
 		{
 			if( false ) ; // For alignment
 			else if( v == TotalOrder::less ) oss << "less";
-			else if ( v == TotalOrder::equal ) oss << "equal";
+			else if( v == TotalOrder::equal ) oss << "equal";
 			else if( v == TotalOrder::greater ) oss << "greater";
 			else throw std::logic_error( "Impossible `TotalOrder` condition." );
 		}
@@ -117,6 +123,14 @@ namespace Alepha::Hydrogen::Testing  ::detail::  printDebugging_m
 		{
 			static_assert( dependent_value< false, T >, "One of the types used in the testing table does not support stringification." );
 		}
+	}
+
+	template< OutputMode outputMode, typename T >
+	std::string
+	stringifyValue( const T &v )
+	{
+		std::ostringstream oss;
+		streamValue< outputMode >( v, oss );
 		return std::move( oss ).str();
 	}