- cos(x) -- class/module Math -- Math
- cosh(x) -- class/module Math -- Math
- count(str[, str2[, ... ]]) -- class/module String -- String
- count_observers -- class/module Observable -- Observable
- covector -- class/module Vector -- Vector
- cp -- class/module Shell -- ruby-src:ruby/doc/shell.rd.ja
- cp -- class/module Shell -- ruby-src:ruby/doc/shell.rd
- cp( list, dir, *options ) -- class/module FileUtils -- fileutils.rb
- cp( src, dest, *options ) -- class/module FileUtils -- fileutils.rb
- cp(from, to[, verbose = false]) => true or false -- class/module File -- ftools.rb
- cp_r( list, dir, *options ) -- class/module FileUtils -- fileutils.rb
- cp_r( src, dest, *options ) -- class/module FileUtils -- fileutils.rb
- cpu -- class/module Resolv::DNS::Resource::IN::HINFO -- Resolv
- create(address) -- class/module Resolv::IPv4 -- Resolv
- create(address) -- class/module Resolv::IPv6 -- Resolv
- create(mailbox) -- class/module Net::IMAP -- net/imap.rb
- create(name) -- class/module Resolv::DNS::Name -- Resolv
- crit(message, ...) -- class/module Syslog -- Syslog
- critical -- class/module Thread -- Thread
- critical = -- class/module Thread -- Thread
- crmode -- class/module Curses -- curses.so
- crypt(salt) -- class/module String -- String
- ctime -- class/module File::Stat -- File::Stat
- ctime -- class/module Time -- Time
- ctime(file) -- class/module Shell -- ruby-src:ruby/doc/shell.rd.ja
- ctime(file) -- class/module Shell -- ruby-src:ruby/doc/shell.rd
- ctime(filename) -- class/module File -- File
- current -- class/module Thread -- Thread
- current_server -- class/module DRb -- dRuby
- curx -- class/module Curses::Window -- curses.so
- cury -- class/module Curses::Window -- curses.so
- cwd -- class/module Shell -- ruby-src:ruby/doc/shell.rd.ja
- cwd -- class/module Shell -- ruby-src:ruby/doc/shell.rd
- cwday -- class/module Date -- Date
- cweek -- class/module Date -- Date
- cwyear -- class/module Date -- Date
- data -- class/module Net::IMAP::ContinuationRequest -- net/imap.rb
- data -- class/module TruncatedDataError -- readbytes.rb
- data -- class/module Resolv::DNS::Resource::IN::TXT -- Resolv
- date -- class/module Net::IMAP::Envelope -- net/imap.rb
- day -- class/module Date -- Date
- day(mday の別名) -- class/module Time -- Time
- dead(終了状態) -- class/module Thread -- Thread
- debug -- class/module Net::IMAP -- net/imap.rb
- debug = -- class/module Net::IMAP -- net/imap.rb
- debug(message, ...) -- class/module Syslog -- Syslog
- debug_mode -- class/module Net::FTP -- net/ftp.rb
- debug_mode = -- class/module Net::FTP -- net/ftp.rb
- decode(str) -- class/module URI -- URI
- decode64(str) -- base64.rb
- decode_b(str) -- base64.rb
- decoded( -- class/module TMail::Mail -- TMail::Mail
- def_class(suplerklass=Object, methodname='erb') -- class/module ERB -- ERB
- def_delegator(accessor, method, ali = method) -- class/module Forwardable -- ruby-src:ruby/doc/forwardable.rd.ja
- def_delegator(accessor, method, ali = method) -- class/module SingleForwardable -- ruby-src:ruby/doc/forwardable.rd.ja
- def_delegator(accessor, method, ali = method) -- class/module Forwardable -- ruby-src:ruby/doc/forwardable.rd
- def_delegator(accessor, method, ali = method) -- class/module SingleForwardable -- ruby-src:ruby/doc/forwardable.rd
- def_delegators(accessor, *methods) -- class/module Forwardable -- ruby-src:ruby/doc/forwardable.rd.ja
- def_delegators(accessor, *methods) -- class/module SingleForwardable -- ruby-src:ruby/doc/forwardable.rd.ja
- def_delegators(accessor, *methods) -- class/module Forwardable -- ruby-src:ruby/doc/forwardable.rd
- def_delegators(accessor, *methods) -- class/module SingleForwardable -- ruby-src:ruby/doc/forwardable.rd
- def_e2message(exception, message_form) -- class/module Exception2MessageMapper -- e2mmap.rb
- def_erb_method(methodname, erb) -- class/module ERB::DefMethod -- ERB
- def_exception(exception_name, message_form, superclass) -- class/module Exception2MessageMapper -- e2mmap.rb
- def_head_option(*opts) [{...}] -- class/module OptionParser -- optparse.rb
- def_instance_delegator(accessor, method, ali = method) -- class/module Forwardable -- ruby-src:ruby/doc/forwardable.rd.ja
- def_instance_delegator(accessor, method, ali = method) -- class/module Forwardable -- ruby-src:ruby/doc/forwardable.rd
- def_instance_delegators(accessor, *methods) -- class/module Forwardable -- ruby-src:ruby/doc/forwardable.rd.ja
- def_instance_delegators(accessor, *methods) -- class/module Forwardable -- ruby-src:ruby/doc/forwardable.rd
- def_method(mod, methodname, fname='(ERB)') -- class/module ERB -- ERB
- def_module(methodname='erb') -- class/module ERB -- ERB
- def_option(*opts) [{...}] -- class/module OptionParser -- optparse.rb
- def_singleton_delegator(accessor, method, ali = method) -- class/module SingleForwardable -- ruby-src:ruby/doc/forwardable.rd.ja
- def_singleton_delegator(accessor, method, ali = method) -- class/module SingleForwardable -- ruby-src:ruby/doc/forwardable.rd
- def_singleton_delegators(accessor, *methods) -- class/module SingleForwardable -- ruby-src:ruby/doc/forwardable.rd.ja
- def_singleton_delegators(accessor, *methods) -- class/module SingleForwardable -- ruby-src:ruby/doc/forwardable.rd
- def_system_command(command, path = command) -- class/module Shell -- ruby-src:ruby/doc/shell.rd.ja
- def_system_command(command, path = command) -- class/module Shell -- ruby-src:ruby/doc/shell.rd
- def_tail_option(*opts) [{...}] -- class/module OptionParser -- optparse.rb
- default -- class/module Hash -- Hash
- default -- class/module WIN32OLE_PARAM -- ruby-src:ruby/ext/win32ole/doc/win32ole.rd
- default([key]) -- class/module Hash -- Hash
- default= -- class/module Hash -- Hash
- default_acl(acl) -- class/module DRb::DRbServer -- dRuby
- default_argc_limit(argc) -- class/module DRb::DRbServer -- dRuby
- default_load_limit(sz) -- class/module DRb::DRbServer -- dRuby
- default_port -- class/module URI::Generic -- URI
- default_port -- class/module URI::Generic -- URI
- default_proc -- class/module Hash -- Hash
- define_finalizer(obj) {|id| ...} -- class/module ObjectSpace -- ObjectSpace
- define_finalizer(obj, proc) -- class/module ObjectSpace -- ObjectSpace
- define_method(name) { ... } -- class/module Module -- Module
- define_method(name, method) -- class/module Module -- Module
- define_struct(contents), struct(contents) -- class/module DL::Importable -- dl/struct.rb
- define_union(contents), union(contents) -- class/module DL::Importable -- dl/struct.rb
- delch -- class/module Curses -- curses.so
- delete -- class/module Net::POP3 -- net/pop.rb
- delete!(str) -- class/module String -- jcode.rb
- delete!(str[, str2[, ... ]]) -- class/module String -- String
- delete( key ) -- class/module TMail::Mail -- TMail::Mail