vm_eval.c: fix types

* vm_eval.c (rb_backtrace_struct, backtreace_collect): use size_t
  instead of int to get rid of overflow.

* vm_eval.c (backtrace_object, vm_backtrace_each): ditto, use
  ptrdiff_t.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35772 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 2 deletions

diff --git a/vm_eval.c b/vm_eval.c
index 340abfc610..ff7d785354 100644
--- a/vm_eval.c
+++ b/vm_eval.c
@@ -20,8 +20,8 @@ static VALUE vm_exec(rb_thread_t *th);
 static void vm_set_eval_stack(rb_thread_t * th, VALUE iseqval, const NODE *cref);
 static int vm_collect_local_variables_in_heap(rb_thread_t *th, VALUE *dfp, VALUE ary);
 
-static int vm_backtrace_each(rb_thread_t *th, int lev, int n, void (*init)(void *), rb_backtrace_iter_func *iter, void *arg);
-static VALUE backtrace_object(rb_thread_t *th, int lev, int n);
+static int vm_backtrace_each(rb_thread_t *th, int lev, ptrdiff_t n, void (*init)(void *), rb_backtrace_iter_func *iter, void *arg);
+static VALUE backtrace_object(rb_thread_t *th, int lev, ptrdiff_t n);
 static VALUE vm_backtrace_str_ary(rb_thread_t *th, int lev, int n);
 
 typedef enum call_type {