moved BN#to_bn to ruby

Author: HoneyryderChuck

ext/openssl/ossl_bn.c

@@ -388,12 +388,6 @@ ossl_bn_to_i(VALUE self)
     return num;
 }
 
-static VALUE
-ossl_bn_to_bn(VALUE self)
-{
-    return self;
-}
-
 static VALUE
 ossl_bn_coerce(VALUE self, VALUE other)
 {
@@ -1328,7 +1322,6 @@ Init_ossl_bn(void)
     rb_define_method(cBN, "to_s", ossl_bn_to_s, -1);
     rb_define_method(cBN, "to_i", ossl_bn_to_i, 0);
     rb_define_alias(cBN, "to_int", "to_i");
-    rb_define_method(cBN, "to_bn", ossl_bn_to_bn, 0);
     rb_define_method(cBN, "coerce", ossl_bn_coerce, 1);
 
     /*

lib/openssl/bn.rb

@@ -23,6 +23,10 @@ def pretty_print(q)
         q.text to_i.to_s
       }
     end
+
+    def to_bn
+      self
+    end
   end # BN
 end # OpenSSL
 
@@ -35,6 +39,6 @@ class Integer
   #
   # See `man bn` for more info.
   def to_bn
-    OpenSSL::BN::new(self)
+    OpenSSL::BN.new(self)
   end
 end # Integer