* include/ruby/intern.h: Add rb_check_arity, rb_error_arity [#6085]

* array.c: Use rb_check_arity / rb_error_arity

* class.c: ditto

* enumerator.c: ditto

* eval.c: ditto

* file.c: ditto

* hash.c: ditto

* numeric.c: ditto

* proc.c: ditto

* process.c: ditto

* random.c: ditto

* re.c: ditto

* signal.c: ditto

* string.c: ditto

* struct.c: ditto

* transcode.c: ditto

* vm_eval.c: ditto

* vm_insnhelper.c: ditto & implementation of rb_error_arity

* test/ruby/test_arity.rb: tests for above

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35024 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 4 insertions, 8 deletions

diff --git a/numeric.c b/numeric.c
index 49bfbbaf01..b118d84d92 100644
--- a/numeric.c
+++ b/numeric.c
@@ -1765,13 +1765,9 @@ num_step(int argc, VALUE *argv, VALUE from)
 	step = INT2FIX(1);
     }
     else {
-	if (argc == 2) {
-	    to = argv[0];
-	    step = argv[1];
-	}
-	else {
-	    rb_raise(rb_eArgError, "wrong number of arguments (%d for 1..2)", argc);
-	}
+	rb_check_arity(argc, 1, 2);
+	to = argv[0];
+	step = argv[1];
 	if (rb_equal(step, INT2FIX(0))) {
 	    rb_raise(rb_eArgError, "step can't be 0");
 	}
@@ -2357,7 +2353,7 @@ int_chr(int argc, VALUE *argv, VALUE num)
       case 1:
 	break;
       default:
-	rb_raise(rb_eArgError, "wrong number of arguments (%d for 0..1)", argc);
+	rb_check_arity(argc, 0, 1);
 	break;
     }
     enc = rb_to_encoding(argv[0]);