From 17ccaea23672675df8bc8bc93bb385f84aeb299d Mon Sep 17 00:00:00 2001
From: Yuichi Nishiwaki <yuichi.nishiwaki@gmail.com>
Date: Tue, 23 Feb 2016 23:28:28 +0900
Subject: [PATCH] remove pic->ccnt

---
 extlib/benz/cont.c                         | 8 +-------
 extlib/benz/include/picrin/private/state.h | 1 -
 extlib/benz/state.c                        | 1 -
 3 files changed, 1 insertion(+), 9 deletions(-)

diff --git a/extlib/benz/cont.c b/extlib/benz/cont.c
index cd1fdafc..02fd42e6 100644
--- a/extlib/benz/cont.c
+++ b/extlib/benz/cont.c
@@ -9,8 +9,6 @@
 struct cont {
   PIC_JMPBUF *jmp;
 
-  int id;
-
   struct checkpoint *cp;
   ptrdiff_t sp_offset;
   ptrdiff_t ci_offset;
@@ -39,7 +37,6 @@ pic_save_point(pic_state *pic, struct cont *cont, PIC_JMPBUF *jmp)
   cont->prev = pic->cc;
   cont->retc = 0;
   cont->retv = NULL;
-  cont->id = pic->ccnt++;
 
   pic->cc = cont;
 }
@@ -109,18 +106,15 @@ cont_call(pic_state *pic)
 {
   int argc;
   pic_value *argv;
-  int id;
   struct cont *cc, *cont;
 
   pic_get_args(pic, "*", &argc, &argv);
 
   cont = pic_data(pic, pic_closure_ref(pic, 0));
 
-  id = cont->id;
-
   /* check if continuation is alive */
   for (cc = pic->cc; cc != NULL; cc = cc->prev) {
-    if (cc->id == id) {
+    if (cc == cont) {
       break;
     }
   }
diff --git a/extlib/benz/include/picrin/private/state.h b/extlib/benz/include/picrin/private/state.h
index 16e5ccb2..9a83559a 100644
--- a/extlib/benz/include/picrin/private/state.h
+++ b/extlib/benz/include/picrin/private/state.h
@@ -41,7 +41,6 @@ struct pic_state {
 
   struct checkpoint *cp;
   struct cont *cc;
-  int ccnt;
 
   pic_value *sp;
   pic_value *stbase, *stend;
diff --git a/extlib/benz/state.c b/extlib/benz/state.c
index b5f97b31..f35f4f0e 100644
--- a/extlib/benz/state.c
+++ b/extlib/benz/state.c
@@ -208,7 +208,6 @@ pic_open(pic_allocf allocf, void *userdata)
 
   /* continuation chain */
   pic->cc = NULL;
-  pic->ccnt = 0;
 
   /* root block */
   pic->cp = NULL;