* ext/fiddle/lib/fiddle.rb: [DOC] Document Fiddle.dlopen(nil)

* ext/fiddle/handle.c: [DOC] Document Fiddle::Handle.new(nil)


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42184 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 5 insertions, 0 deletions

diff --git a/ext/fiddle/lib/fiddle.rb b/ext/fiddle/lib/fiddle.rb
index c8a7ef1b05..3a9b5d5bff 100644
--- a/ext/fiddle/lib/fiddle.rb
+++ b/ext/fiddle/lib/fiddle.rb
@@ -32,6 +32,11 @@ module Fiddle
   # Creates a new handler that opens +library+, and returns an instance of
   # Fiddle::Handle.
   #
+  # If +nil+ is given for the +library+, Fiddle::Handle::DEFAULT is used, which
+  # usually means +libc+.
+  #
+  #   libc = Fiddle.dlopen(nil)
+  #
   # See Fiddle::Handle.new for more.
   def dlopen library
     Fiddle::Handle.new library