diff --git a/include/gp/allocator/arena.hpp b/include/gp/allocator/arena.hpp
index 118a2bd..9881b4c 100644
--- a/include/gp/allocator/arena.hpp
+++ b/include/gp/allocator/arena.hpp
@@ -4,26 +4,24 @@
 #include <type_traits>
 #include <gp/algorithm/tmp_manip.hpp>
 
-
-
-namespace gp{
+namespace gp {
 	template<typename page_allocator = int, size_t align = 1>
-	class arena{
+	class arena {
 		page_allocator allocator;
 		gp::buffer<char> data;
 		size_t last;
 		size_t count;
 	public: 
 		arena()
-		:last(0)
-		,count(0)
-		,data(gp::buffer<char>(nullptr,nullptr))
+		: last(0)
+		, count(0)
+		, data(gp::buffer<char>(nullptr,nullptr))
 		{}
 
 		arena(size_t sz)
-		:last(0)
-		,count(0)
-		,data(nullptr,nullptr)
+		: last(0)
+		, count(0)
+		, data(nullptr,nullptr)
 		{
 			if constexpr (gp::has_allocator_interface<page_allocator>::value)
 			{
@@ -39,11 +37,10 @@ namespace gp{
 		}
 
 		arena(char* pos,size_t sz)
-		:last(0)
-		,count(0)
-		,data(pos,pos+sz)
-		{
-		}
+		: last(0)
+		, count(0)
+		, data(pos,pos+sz)
+		{}
 
 		void* allocate(size_t sz)
 		{
@@ -98,4 +95,4 @@ namespace gp{
 			}
 		}
 	};
-}
\ No newline at end of file
+}