Index: O
- /o pattern-matching modifier : Speeding Up Interpolated Matches
- O_ flags : Opening a File
-
- O_NONBLOCK option : Doing Non-Blocking I/O
- object attributes
-
- Introduction
- Managing Instance Data
- inheritance and : Solving the Data Inheritance Problem
- object methods : Introduction
- object-oriented developing : Introduction
- objects : Introduction
-
- cloning parent objects : Cloning Objects
- closures as : Using Closures Instead of Objects
- constructing
- destroying
- determining subclass membership : Determining Subclass Membership
- managing instance data : Managing Instance Data
- tied objects : Creating Magic Variables with tie
- oct( ) : Converting Between Octal and Hexadecimal
- octal numbers : Converting Between Octal and Hexadecimal
- open( )
-
- (see also processes)
- Introduction
- Opening a File
- Communicating Between Related Processes
- caching open filehandles : Caching Open Output Filehandles
- filtering output : Filtering Your Own Output
- reading from other programs : Reading or Writing to Another Program
- strange filenames with : Opening Files with Unusual Filenames
- open, magic : (see magic open)
- opendir( )
- opening file descriptors : Opening and Closing File Descriptors by Number
- opening files : Opening a File
- operators, overloading : Overloading Operators
- OR functionality in regular expressions : Expressing AND, OR, and NOT in a Single Pattern
- or operator vs. || operator : Establishing a Default Value
- ord( ) : Converting Between ASCII Characters and Values
- oreobounce program (example) : Redirecting to a Different Location
- os_snipe program (example) : Redirecting to a Different Location
- output
-
- controlling decimal places : Overloading Operators
- controlling for other programs : Controlling Input and Output of Another Program
- filtering : Filtering Your Own Output
- flushing : Flushing Output
- gathering from programs : Gathering Output from a Program
- random access I/O : Using Random-Access I/O
- writing to other programs : Reading or Writing to Another Program
- output( ) : Program: dutree
- overloading operators : Overloading Operators
- overriding
-
- built-in functions : Overriding Built-In Functions
- methods : Accessing Overridden Methods
- signal handlers : Temporarily Overriding a Signal Handler
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