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Index: O

/o pattern-matching modifier : 6.10. Speeding Up Interpolated Matches
O_ flags : 7.1. Opening a File
O_NONBLOCK option : 7.14. Doing Non-Blocking I/O
object attributes
13.0. Introduction
13.3. Managing Instance Data
inheritance and : 13.12. Solving the Data Inheritance Problem
object methods : 13.0. Introduction
object-oriented programming : 13.0. Introduction
objects : 13.0. Introduction
cloning parent objects : 13.6. Cloning Objects
closures as : 11.7. Using Closures Instead of Objects
constructing
13.0. Introduction
13.1. Constructing an Object
destroying
13.0. Introduction
13.2. Destroying an Object
determining subclass membership : 13.8. Determining Subclass Membership
managing instance data : 13.3. Managing Instance Data
tied objects : 13.15. Creating Magic Variables with tie
oct() : 2.16. Converting Between Octal and Hexadecimal
octal numbers : 2.16. Converting Between Octal and Hexadecimal
open()
(see also processes)
7.0. Introduction
7.1. Opening a File
16.10. Communicating Between Related Processes
caching open filehandles : 7.17. Caching Open Output Filehandles
filtering output : 16.5. Filtering Your Own Output
reading from other programs : 16.4. Reading or Writing to Another Program
strange filenames with : 7.2. Opening Files with Unusual Filenames
open, magic : (see magic open)
opendir()
9.0. Introduction
9.5. Processing All Files in a Directory
globbing filenames : 9.6. Globbing, or Getting a List of Filenames Matching a Pattern
opening file descriptors : 7.19. Opening and Closing File Descriptors by Number
opening files : 7.1. Opening a File
operators, overloading : 13.14. Overloading Operators
OR functionality in regular expressions : 6.17. Expressing AND, OR, and NOT in a Single Pattern
or operator vs. || operator : 1.2. Establishing a Default Value
ord() : 1.4. Converting Between ASCII Characters and Values
oreobounce program (example) : 19.8. Redirecting to a Different Location
os_snipe program (example) : 19.8. Redirecting to a Different Location
output
controlling decimal places : 13.14. Overloading Operators
controlling for other programs : 16.8. Controlling Input and Output of Another Program
filtering : 16.5. Filtering Your Own Output
flushing : 7.12. Flushing Output
gathering from programs : 16.1. Gathering Output from a Program
random access I/O : 8.12. Using Random-Access I/O
writing to other programs : 16.4. Reading or Writing to Another Program
output() : 5.16. Program: dutree
overloading operators : 13.14. Overloading Operators
overriding
built-in functions : 12.11. Overriding Built-In Functions
methods : 13.10. Accessing Overridden Methods
signal handlers : 16.16. Temporarily Overriding a Signal Handler


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