Core Classes

• ARGF
• ArgumentError
• Array
• BasicObject
• Bignum
• Binding
• Class
• MComparable
• Complex
• Continuation
• Data
• Dir
• ENV
• EOFError
• Encoding
• Encoding::CompatibilityError
• Encoding::Converter
• Encoding::ConverterNotFoundError
• Encoding::InvalidByteSequenceError
• Encoding::UndefinedConversionError
• EncodingError
• MEnumerable
• Enumerator
• Enumerator::Generator
• Enumerator::Yielder
• MErrno
• Exception
• FalseClass
• Fiber
• FiberError
• File
• MFile::Constants
• File::Stat
• MFileTest
• Fixnum
• Float
• FloatDomainError
• MGC
• MGC::Profiler
• Hash
• IO
• MIO::WaitReadable
• MIO::WaitWritable
• IOError
• IndexError
• Integer
• Interrupt
• MKernel
• KeyError
• LoadError
• LocalJumpError
• MMarshal
• MatchData
• MMath
• Math::DomainError
• Method
• Module
• Mutex
• NameError
• NilClass
• NoMemoryError
• NoMethodError
• NotImplementedError
• Numeric
• Object
• MObjectSpace
• Proc
• MProcess
• MProcess::GID
• Process::Status
• MProcess::Sys
• MProcess::UID
• Random
• Range
• RangeError
• Rational
• Regexp
• RegexpError
• RubyVM
• RubyVM::Env
• RubyVM::InstructionSequence
• RuntimeError
• ScriptError
• SecurityError
• MSignal
• SignalException
• StandardError
• StopIteration
• String
• Struct
• Symbol
• SyntaxError
• SystemCallError
• SystemExit
• SystemStackError
• Thread
• ThreadError
• ThreadGroup
• Time
• TrueClass
• TypeError
• UnboundMethod
• ZeroDivisionError
• fatal