Ruby 2.1.0 リファレンスマニュアル > ライブラリ一覧 > primeライブラリ > Prime::EratosthenesGeneratorクラス

class Prime::EratosthenesGenerator

クラスの継承リスト: Prime::EratosthenesGenerator < Prime::PseudoPrimeGenerator < Enumerable < Object < Kernel < BasicObject

要約

Prime::PseudoPrimeGenerator の具象クラスです。素数の生成にエラトステネスのふるいを使用しています。

インスタンスメソッド

定義 説明
next -> Integer
succ -> Integer

次の(疑似)素数を返します。なお、この実装においては疑似素数は真に素数です。

rewind -> nil

列挙状態を巻き戻します。

継承したメソッド

! != __id__ __send__ instance_eval instance_exec method_missing singleton_method_added singleton_method_removed singleton_method_undefined all? any? chunk collect collect_concat count cycle detect drop drop_while each_cons each_entry each_slice each_with_index each_with_object entries find_all find_index first grep group_by include? inject lazy max max_by min min_by minmax minmax_by none? one? partition reject reverse_each slice_before sort sort_by take take_while to_h to_set zip !~ <=> == === =~ _dump class clone define_singleton_method display enum_for eql? equal? extend freeze frozen? hash initialize initialize_copy inspect instance_of? instance_variable_defined? instance_variable_get instance_variable_set instance_variables is_a? marshal_dump marshal_load method methods must_be must_be_close_to must_be_empty must_be_instance_of must_be_kind_of must_be_nil must_be_same_as must_be_within_epsilon must_equal must_include must_match must_raise must_respond_to must_send must_throw nil? object_id pretty_inspect pretty_print pretty_print_cycle pretty_print_inspect pretty_print_instance_variables private_methods protected_methods psych_to_yaml public_method public_methods public_send remove_instance_variable respond_to? respond_to_missing? send singleton_class singleton_method singleton_methods taint tainted? tap to_ary to_hash to_int to_io to_proc to_regexp to_s to_str trust untaint untrust untrusted? .yaml_tag ::ARGF ::ARGV ::DATA ::ENV ::FALSE ::NIL ::RUBY_COPYRIGHT ::RUBY_DESCRIPTION ::RUBY_ENGINE ::RUBY_PATCHLEVEL ::RUBY_PLATFORM ::RUBY_RELEASE_DATE ::RUBY_REVISION ::RUBY_VERSION ::SCRIPT_LINES__ ::STDERR ::STDIN ::STDOUT ::TOPLEVEL_BINDING ::TRUE each each_with_index upper_bound upper_bound= with_object .new