* 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, 2 insertions, 2 deletions

diff --git a/random.c b/random.c
index 616cd68b52..1a93779dc9 100644
--- a/random.c
+++ b/random.c
@@ -1168,8 +1168,8 @@ rand_random(int argc, VALUE *argv, rb_random_t *rnd)
     if (argc == 0) {
 	return rb_float_new(genrand_real(&rnd->mt));
     }
-    else if (argc != 1) {
-	rb_raise(rb_eArgError, "wrong number of arguments (%d for 0..1)", argc);
+    else {
+	rb_check_arity(argc, 0, 1);
     }
     vmax = argv[0];
     if (NIL_P(vmax)) {