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@cho45
Created April 1, 2013 03:48
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Numeric#nonzero? -> self | nil
File::Stat#size? -> Integer | nil
Float#infinite? -> 1 | -1 | nil
File::Stat#world_readable? -> Fixnum | nil
File::Stat#world_writable? -> Fixnum | nil
Encoding.compatible?(obj1, obj2) -> Encoding | nil
File.world_readable?(path) -> Integer | nil
File.world_writable?(path) -> bool # リファレンスで見出しは bool となっているけど説明では Integer | nil
FileTest.#world_readable?(path) -> Integer | nil
FileTest.#world_writable?(path) -> bool # リファレンスで見出しは bool となっているけど説明では Integer | nil
Kernel.#autoload?(const_name) -> String | nil
Module#autoload?(const_name) -> String | nil
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