2000-02-08

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@616 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 16 insertions, 2 deletions

diff --git a/hash.c b/hash.c
index 77f7e3e6e2..4e3cf9974a 100644
--- a/hash.c
+++ b/hash.c
@@ -476,6 +476,13 @@ rb_hash_delete_if(hash)
     return hash;
 }
 
+static VALUE
+rb_hash_reject(hash)
+    VALUE hash;
+{
+    return rb_hash_delete_if(rb_hash_dup(hash));
+}
+
 static int
 clear_i(key, value, dummy)
     VALUE key, value, dummy;
@@ -1211,6 +1218,12 @@ env_delete_if()
 }
 
 static VALUE
+env_reject()
+{
+    return rb_hash_delete_if(env_to_hash());
+}
+
+static VALUE
 env_to_s()
 {
     return rb_str_new2("ENV");
@@ -1331,8 +1344,7 @@ env_indexes(argc, argv)
 }
 
 static VALUE
-env_to_hash(obj)
-    VALUE obj;
+env_to_hash()
 {
     char **env;
     VALUE hash = rb_hash_new();
@@ -1397,6 +1409,7 @@ Init_Hash()
     rb_define_method(rb_cHash,"delete", rb_hash_delete, 1);
     rb_define_method(rb_cHash,"delete_if", rb_hash_delete_if, 0);
     rb_define_method(rb_cHash,"reject!", rb_hash_delete_if, 0);
+    rb_define_method(rb_cHash,"reject", rb_hash_reject, 0);
     rb_define_method(rb_cHash,"clear", rb_hash_clear, 0);
     rb_define_method(rb_cHash,"invert", rb_hash_invert, 0);
     rb_define_method(rb_cHash,"update", rb_hash_update, 1);
@@ -1423,6 +1436,7 @@ Init_Hash()
     rb_define_singleton_method(envtbl,"delete", env_delete_m, 1);
     rb_define_singleton_method(envtbl,"delete_if", env_delete_if, 0);
     rb_define_singleton_method(envtbl,"reject!", env_delete_if, 0);
+    rb_define_singleton_method(envtbl,"reject", env_reject, 0);
     rb_define_singleton_method(envtbl,"to_s", env_to_s, 0);
     rb_define_singleton_method(envtbl,"rehash", env_none, 0);
     rb_define_singleton_method(envtbl,"to_a", env_to_a, 0);