From aae36756dcc4d5debcaabd03379796bc41360bc4 Mon Sep 17 00:00:00 2001
From: matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sun, 3 Nov 2002 11:04:35 +0000
Subject: * object.c (Init_Object): added Object#object_id, new name for  
 Object#id. [new]

* object.c (rb_obj_id_obsolete): give warning for Object#id.

* numeric.c (fix_intern): added Fixnum#to_sym. [new]

* object.c (sym_to_sym): rename from Symbol#intern

* enum.c (enum_zip): added Enumerable#zip. [new]

* array.c (rb_ary_zip): added Array#zip.

* error.c (init_syserr): remove sys_nerr dependency.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@3020 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 array.c | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

(limited to 'array.c')

diff --git a/array.c b/array.c
index ee59769a5c..bed2390282 100644
--- a/array.c
+++ b/array.c
@@ -1299,6 +1299,33 @@ rb_ary_delete_if(ary)
     return ary;
 }
 
+static VALUE
+rb_ary_zip(argc, argv, ary)
+    int argc;
+    VALUE *argv;
+    VALUE ary;
+{
+    int i, j, len;
+    VALUE result;
+
+    len = RARRAY(ary)->len;
+    for (i=0; i<argc; i++) {
+	argv[i] = to_ary(argv[i]);
+	if (RARRAY(argv[i])->len > len) len = RARRAY(argv[i])->len;
+    }
+    result = rb_ary_new2(len);
+    for (i=0; i<len; i++) {
+	VALUE tmp = rb_ary_new2(argc+1);
+
+	rb_ary_push(tmp, rb_ary_entry(ary, i));
+	for (j=0; j<argc; j++) {
+	    rb_ary_push(tmp, rb_ary_entry(argv[j], i));
+	}
+	rb_ary_push(result, tmp);
+    }
+    return result;
+}
+
 static VALUE
 rb_ary_replace(copy, orig)
     VALUE copy, orig;
@@ -1865,6 +1892,7 @@ Init_Array()
     rb_define_method(rb_cArray, "delete_if", rb_ary_delete_if, 0);
     rb_define_method(rb_cArray, "reject", rb_ary_reject, 0);
     rb_define_method(rb_cArray, "reject!", rb_ary_reject_bang, 0);
+    rb_define_method(rb_cArray, "zip", rb_ary_zip, -1);
     rb_define_method(rb_cArray, "replace", rb_ary_replace, 1);
     rb_define_method(rb_cArray, "clear", rb_ary_clear, 0);
     rb_define_method(rb_cArray, "fill", rb_ary_fill, -1);
-- 
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