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検索結果
先頭5件
-
IRB
:: ExtendCommand :: Require # execute(file _ name) -> bool (38224.0) -
ファイル file_name を現在の irb インタプリタ上で実行します。
...ル file_name を現在の irb インタプリタ上で実行します。
file_name に Ruby スクリプトを指定した場合は、Kernel.#require と異
なり、file_name の内容を irb で一行ずつタイプしたかのように、irb 上で一
行ずつ評価されます。require に......成功した場合は true を、そうでない場合は
false を返します。
拡張ライブラリ(*.so,*.o,*.dll など)を指定した場合は単純に require され
ます。
@param file_name ファイル名を文字列で指定します。... -
Integer
# prime _ division(generator = Prime :: Generator23 . new) -> [[Integer , Integer]] (32330.0) -
自身を素因数分解した結果を返します。
...。
@param generator 素数生成器のインスタンスを指定します。
@return 素因数とその指数から成るペアを要素とする配列です。つまり、戻り値の各要素は2要素の配列 [n,e] であり、それぞれの内部配列の第1要素 n は self の素因数......、第2要素は n**e が self を割り切る最大の自然数 e です。
@raise ZeroDivisionError self がゼロである場合に発生します。
@see Prime#prime_division
//emlist[例][ruby]{
require 'prime'
12.prime_division #=> [[2,2], [3,1]]
10.prime_division #=> [[2,1], [5,1]]
//}... -
IPSocket
. getaddress(host) -> String (32212.0) -
ホスト名からホストのアドレスを返します。ホストのアドレスは文 字列は octet decimal の文字列 (例: 127.0.0.1) です。
...ホストのアドレスを返します。ホストのアドレスは文
字列は octet decimal の文字列 (例: 127.0.0.1) です。
@param host ホスト名を文字列で指定します。
例:
require 'socket'
p IPSocket.getaddress("www.ruby-lang.org") #=> "210.163.138.100"... -
Integer
# prime? -> bool (32212.0) -
自身が素数である場合、真を返します。 そうでない場合は偽を返します。
...自身が素数である場合、真を返します。
そうでない場合は偽を返します。
//emlist[例][ruby]{
require 'prime'
1.prime? # => false
2.prime? # => true
//}
@see Prime#prime?... -
Integer
. from _ prime _ division(pd) -> Integer (32212.0) -
素因数分解された結果を元の数値に戻します。
...アの第一要素は素因数を、
第二要素はその素因数の指数をあらわします。
@see Prime#int_from_prime_division
//emlist[例][ruby]{
require 'prime'
Prime.int_from_prime_division([[2,2], [3,1]]) #=> 12
Prime.int_from_prime_division([[2,2], [3,2]]) #=> 36
//}... -
Kernel
. # require(feature) -> bool (30371.0) -
Ruby ライブラリ feature をロードします。拡張子補完を行い、 同じファイルの複数回ロードはしません。
...
Ruby ライブラリ feature をロードします。拡張子補完を行い、
同じファイルの複数回ロードはしません。
feature が絶対パスのときは feature からロードします。
feature が相対パスのときは組み込み変数 $:
に示されるパスを順番......は true を返し、ロードした feature の名前を(拡
張子も含めて) 変数 $" に追加します。ただし、feature の名前が既に $"
に含まれていた場合はロードせずに false を返します。
@param feature ファイル名の文字列です。
@raise LoadError....../emlist[例][ruby]{
$LOADED_FEATURES.grep(/prime/).size # => 0
require "prime" # => true
$LOADED_FEATURES.grep(/prime/).size # => 1
require "prime" # => false
begin
require "invalid"
rescue LoadError => e
e.message # => "cannot load such file -- invalid"
end
//}
@see Kernel.#load,Ke... -
Kernel
# require(path) -> bool (30345.0) -
RubyGems を require すると、Kernel#require が Gem を 要求されたときにロードするように置き換えます。
...
RubyGems を require すると、Kernel#require が Gem を
要求されたときにロードするように置き換えます。
再定義された Kernel#require を呼び出すと以下の事を行います。
Ruby のロードパスに存在するライブラリを指定した場合はその......た Gem ファイルの中から見つかった場合は、
その Gem をロードパスに登録します。
@param path ロードしたいライブラリの名前を指定します。
@return 既にロードされているライブラリを再度ロードしようとした場合は false を返......します。
そうでない場合は true を返します。... -
rubygems
/ requirement (30000.0) -
Gem パッケージのバージョンに関する必須条件を扱うためのライブラリです。
...Gem パッケージのバージョンに関する必須条件を扱うためのライブラリです。... -
Gem
:: Specification # required _ rubygems _ version -> Gem :: Requirement (27700.0) -
この Gem パッケージを動作させるのに必要な RubyGems のバージョンを返します。
...この Gem パッケージを動作させるのに必要な RubyGems のバージョンを返します。... -
Gem
:: Specification # required _ rubygems _ version=(requirement) (27700.0) -
この Gem パッケージを動作させるのに必要な RubyGems のバージョンをセットします。
...この Gem パッケージを動作させるのに必要な RubyGems のバージョンをセットします。
@param requirement Gem::Requirement.create が受け付ける形式のオブジェクトを指定します。
@see Gem::Requirement...