Define Integer#- instead of Bignum#-.

* numeric.c (rb_int_minus): Define Integer#-.

* bignum.c (rb_big_minus): Don't define Bignum#-.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54849 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

3 files changed, 9 insertions, 9 deletions

diff --git a/ChangeLog b/ChangeLog
index 5dd5ea364f..ccf2b0a1d3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Sat Apr 30 21:01:20 2016  Tanaka Akira  <akr@fsij.org>
+
+	* numeric.c (rb_int_minus): Define Integer#-.
+
+	* bignum.c (rb_big_minus): Don't define Bignum#-.
+
 Sat Apr 30 20:53:33 2016  Tanaka Akira  <akr@fsij.org>
 
 	* numeric.c (rb_int_mul): Define Integer#*.
diff --git a/bignum.c b/bignum.c
index aca779be00..db550a1d7d 100644
--- a/bignum.c
+++ b/bignum.c
@@ -5803,13 +5803,6 @@ rb_big_plus(VALUE x, VALUE y)
     }
 }
 
-/*
- *  call-seq:
- *     big - other  -> Numeric
- *
- *  Subtracts other from big, returning the result.
- */
-
 VALUE
 rb_big_minus(VALUE x, VALUE y)
 {
@@ -6836,7 +6829,6 @@ Init_Bignum(void)
 
     rb_define_method(rb_cBignum, "coerce", rb_big_coerce, 1);
     rb_define_method(rb_cBignum, "+", rb_big_plus, 1);
-    rb_define_method(rb_cBignum, "-", rb_big_minus, 1);
     rb_define_method(rb_cBignum, "/", rb_big_div, 1);
 
     rb_define_method(rb_cBignum, "===", rb_big_eq, 1);
diff --git a/numeric.c b/numeric.c
index 8a098d0a30..be66fd0685 100644
--- a/numeric.c
+++ b/numeric.c
@@ -3279,9 +3279,10 @@ rb_int_plus(VALUE x, VALUE y)
 }
 
 /*
+ * Document-method: Integer#-
  * Document-method: Fixnum#-
  * call-seq:
- *   fix - numeric  ->  numeric_result
+ *   int - numeric  ->  numeric_result
  *
  * Performs subtraction: the class of the resulting object depends on the class
  * of +numeric+ and on the magnitude of the result. It may return a Bignum.
@@ -4940,6 +4941,7 @@ Init_Numeric(void)
     rb_define_method(rb_cInteger, "-@", rb_int_uminus, 0);
     rb_define_method(rb_cFixnum, "+", fix_plus, 1);
     rb_define_method(rb_cFixnum, "-", fix_minus, 1);
+    rb_define_method(rb_cInteger, "-", rb_int_minus, 1);
     rb_define_method(rb_cFixnum, "*", fix_mul, 1);
     rb_define_method(rb_cInteger, "*", rb_int_mul, 1);
     rb_define_method(rb_cFixnum, "/", fix_div, 1);