In Files
- io.c
Parent
Files
- grammar.en.rdoc
- test.ja.rdoc
- contributing.rdoc
- contributors.rdoc
- dtrace_probes.rdoc
- extension.ja.rdoc
- extension.rdoc
- globals.rdoc
- keywords.rdoc
- maintainers.rdoc
- marshal.rdoc
- regexp.rdoc
- security.rdoc
- standard_library.rdoc
- syntax.rdoc
- assignment.rdoc
- calling_methods.rdoc
- control_expressions.rdoc
- exceptions.rdoc
- literals.rdoc
- methods.rdoc
- miscellaneous.rdoc
- modules_and_classes.rdoc
- precedence.rdoc
- refinements.rdoc
- README.ja.rdoc
- README.rdoc
Class/Module Index
![[+]](./images/find.png "show/hide quicksearch")
- ArgumentError
- Array
- BasicObject
- Bignum
- Binding
- Class
- ClosedQueueError
- Comparable
- Complex
- Complex::compatible
- ConditionVariable
- Continuation
- Data
- Dir
- ENV
- EOFError
- Encoding
- Encoding::CompatibilityError
- Encoding::Converter
- Encoding::ConverterNotFoundError
- Encoding::InvalidByteSequenceError
- Encoding::UndefinedConversionError
- EncodingError
- Enumerable
- Enumerator
- Enumerator::Generator
- Enumerator::Lazy
- Enumerator::Yielder
- Errno
- Exception
- FalseClass
- Fiber
- FiberError
- File
- File::Constants
- File::Stat
- FileTest
- Fixnum
- Float
- FloatDomainError
- GC
- GC::Profiler
- Hash
- IO
- IO::EAGAINWaitReadable
- IO::EAGAINWaitWritable
- IO::EINPROGRESSWaitReadable
- IO::EINPROGRESSWaitWritable
- IO::EWOULDBLOCKWaitReadable
- IO::EWOULDBLOCKWaitWritable
- IO::WaitReadable
- IO::WaitWritable
- IOError
- IndexError
- Integer
- Interrupt
- Kernel
- KeyError
- LoadError
- LocalJumpError
- Marshal
- MatchData
- Math
- Math::DomainError
- Method
- Module
- NameError
- NilClass
- NoMemoryError
- NoMethodError
- NotImplementedError
- Numeric
- Object
- ObjectSpace
- ObjectSpace::WeakMap
- Proc
- Process
- Process::GID
- Process::Status
- Process::Sys
- Process::UID
- Process::Waiter
- Queue
- Random
- Random::Formatter
- Range
- RangeError
- Rational
- Rational::compatible
- Regexp
- RegexpError
- RubyVM
- RubyVM::Env
- RubyVM::InstructionSequence
- RuntimeError
- ScriptError
- SecurityError
- Signal
- SignalException
- SizedQueue
- StandardError
- StopIteration
- String
- Struct
- Symbol
- SyntaxError
- SystemCallError
- SystemExit
- SystemStackError
- Thread
- Thread::Backtrace::Location
- Thread::Mutex
- ThreadError
- ThreadGroup
- Time
- TracePoint
- TrueClass
- TypeError
- UnboundMethod
- UncaughtThrowError
- ZeroDivisionError
- fatal
- unknown
EOFError
Raised by some IO operations when reaching the end of file. Many IO methods exist in two forms,
one that returns nil when the end of file is reached, the
other raises EOFError.
EOFError is a subclass of IOError.
file = File.open("/etc/hosts") file.read file.gets #=> nil file.readline #=> EOFError: end of file reached