From 2c62b3fbc7315942d9f462195020ab681c3a4c0d Mon Sep 17 00:00:00 2001
From: stomar <stomar@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sun, 4 Nov 2018 11:46:49 +0000
Subject: hash.c: [DOC] add docs for ENV.{filter,filter!}

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65534 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 hash.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/hash.c b/hash.c
index 86026826f8..4766cf2d87 100644
--- a/hash.c
+++ b/hash.c
@@ -5086,10 +5086,14 @@ env_values_at(int argc, VALUE *argv)
  * call-seq:
  *   ENV.select { |name, value| block } -> Hash
  *   ENV.select                         -> Enumerator
+ *   ENV.filter { |name, value| block } -> Hash
+ *   ENV.filter                         -> Enumerator
  *
  * Returns a copy of the environment for entries where the block returns true.
  *
  * Returns an Enumerator if no block was given.
+ *
+ * ENV.filter is an alias for ENV.select.
  */
 static VALUE
 env_select(VALUE ehash)
@@ -5119,8 +5123,12 @@ env_select(VALUE ehash)
  * call-seq:
  *   ENV.select! { |name, value| block } -> ENV or nil
  *   ENV.select!                         -> Enumerator
+ *   ENV.filter! { |name, value| block } -> ENV or nil
+ *   ENV.filter!                         -> Enumerator
  *
  * Equivalent to ENV.keep_if but returns +nil+ if no changes were made.
+ *
+ * ENV.filter! is an alias for ENV.select!.
  */
 static VALUE
 env_select_bang(VALUE ehash)
-- 
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