From c219c2a15eec04040144ba5cd478b5c5dff14f65 Mon Sep 17 00:00:00 2001
From: cremno <cremno@mail.ru>
Date: Fri, 29 Aug 2014 15:50:31 +0200
Subject: use RITE_LV_NULL_MARK for better readability

The comment didn't say why the length is reserved.
Using RITE_LV_NULL_MARK makes things a bit clearer.
---
 src/symbol.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/symbol.c b/src/symbol.c
index 5c55e5b65..1736a12b7 100644
--- a/src/symbol.c
+++ b/src/symbol.c
@@ -9,6 +9,7 @@
 #include "mruby.h"
 #include "mruby/khash.h"
 #include "mruby/string.h"
+#include "mruby/dump.h"
 
 /* ------------------------------------------------------ */
 typedef struct symbol_name {
@@ -38,7 +39,7 @@ KHASH_DEFINE (n2s, symbol_name, mrb_sym, TRUE, sym_hash_func, sym_hash_equal)
 static void
 sym_validate_len(mrb_state *mrb, size_t len)
 {
-  if (len > (UINT16_MAX-1)) {   /* UINT16_MAX is reverved */
+  if (len >= RITE_LV_NULL_MARK) {
     mrb_raise(mrb, E_ARGUMENT_ERROR, "symbol length too long");
   }
 }
-- 
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