addseverity (3)      - introduce new severity classes
alter_operator_class (7) - (unknown subject)
Apache::TestMB (3pm) - Subclass of Module::Build to support Apache::Test
Apache::TestReport (3pm) - A parent class for generating bug/success reports
Archive::Tar::File (3pm) - a subclass for in-memory extracted file from Archi...
base (3pm)           - Establish an ISA relationship with base classes at com...
cbq (8)              - Class Based Queueing
cgclassify (1)       - move running task(s) to given cgroups
Class::Struct (3pm)  - declare struct-like datatypes as Perl classes
classes.conf (5)     - class configuration file for cups
create_operator_class (7) - (unknown subject)
cupsdisable (8)      - stop/start printers and classes
cupsenable (8)       - stop/start printers and classes
Date::Manip::Obj (3pm) - Base class for Date::Manip objects
DBD::File (3pm)      - Base class for writing file based DBI drivers
DBD::Gofer::Policy::Base (3pm) - Base class for DBD::Gofer policies
DBD::Gofer::Policy::classic (3pm) - The 'classic' policy for DBD::Gofer
DBD::Gofer::Transport::Base (3pm) - base class for DBD::Gofer client transports
DBI::DBD::SqlEngine (3pm) - Base class for DBI drivers without their own SQL ...
DBI::Gofer::Serializer::Base (3pm) - base class for Gofer serialization
DBI::Gofer::Transport::Base (3pm) - Base class for Gofer transports
Digest::base (3pm)   - Digest base class
ditroff (7)          - classical device independent roff
drop_operator_class (7) - (unknown subject)
Encode::Detect (3pm) - An Encode::Encoding subclass that detects the encoding...
Encode::Encoding (3pm) - Encode Implementation Base Class
Error::Simple (3pm)  - the simple error sub-class of Error
ExtUtils::Constant::Base (3pm) - base class for ExtUtils::Constant objects
ExtUtils::MM (3pm)   - OS adjusted ExtUtils::MakeMaker subclass
ExtUtils::MM_AIX (3pm) - AIX specific subclass of ExtUtils::MM_Unix
ExtUtils::MM_DOS (3pm) - DOS specific subclass of ExtUtils::MM_Unix
ExtUtils::MM_MacOS (3pm) - once produced Makefiles for MacOS Classic
ExtUtils::MM_QNX (3pm) - QNX specific subclass of ExtUtils::MM_Unix
ExtUtils::MM_UWIN (3pm) - U/WIN specific subclass of ExtUtils::MM_Unix
ExtUtils::MM_VOS (3pm) - VOS specific subclass of ExtUtils::MM_Unix
ExtUtils::MY (3pm)   - ExtUtils::MakeMaker subclass for customization
fields (3pm)         - compile-time class fields
File::Spec::Mac (3pm) - File::Spec for Mac OS (Classic)
finite (3)           - BSD floating-point classification functions
finitef (3)          - BSD floating-point classification functions
finitel (3)          - BSD floating-point classification functions
fpclassify (3)       - floating-point classification macros
fpclassify (3p)      - classify real floating type
gcj-dbtool (1)       - Manipulate class file mapping databases for libgcj
groff_diff (7)       - differences between GNU troff and classical troff
Hash::Util::FieldHash (3pm) - Support for Inside-Out Classes
HTML::Form (3pm)     - Class that represents an HTML form element
HTML::Parser (3pm)   - HTML parser class
HTTP::Daemon (3pm)   - a simple http server class
HTTP::Headers (3pm)  - Class encapsulating HTTP Message headers
HTTP::Message (3pm)  - HTTP style message (base class)
IO::Compress::Base (3pm) - Base Class for IO::Compress modules
IO::Uncompress::Base (3pm) - Base Class for IO::Uncompress modules
ionice (1)           - get/set program io scheduling class and priority
ioprio_get (2)       - get/set I/O scheduling class and priority
ioprio_set (2)       - get/set I/O scheduling class and priority
IPC::Msg (3pm)       - SysV Msg IPC object class
IPC::Semaphore (3pm) - SysV Semaphore IPC object class
IPC::SharedMem (3pm) - SysV Shared Memory IPC object class
isalnum (3)          - character classification routines
isalpha (3)          - character classification routines
isascii (3)          - character classification routines
isblank (3)          - character classification routines
iscntrl (3)          - character classification routines
isdigit (3)          - character classification routines
isfinite (3)         - floating-point classification macros
isgraph (3)          - character classification routines
isinf (3)            - floating-point classification macros
isinff (3)           - BSD floating-point classification functions
isinfl (3)           - BSD floating-point classification functions
islower (3)          - character classification routines
isnan (3)            - floating-point classification macros
isnanf (3)           - BSD floating-point classification functions
isnanl (3)           - BSD floating-point classification functions
isnormal (3)         - floating-point classification macros
isprint (3)          - character classification routines
ispunct (3)          - character classification routines
isspace (3)          - character classification routines
isupper (3)          - character classification routines
iswctype (3)         - wide-character classification
iswctype (3p)        - test character for a specified class
isxdigit (3)         - character classification routines
ldns_get_rr_class_by_name (3) - (unknown subject)
ldns_rdf2buffer_str_class (3) - (unknown subject)
ldns_rr_class (3)    - (unknown subject)
ldns_rr_get_class (3) - (unknown subject)
ldns_rr_set_class (3) - (unknown subject)
lpadmin (8)          - configure cups printers and classes
LWP::MemberMixin (3pm) - Member access mixin class
LWP::Protocol (3pm)  - Base class for LWP protocols
LWP::RobotUA (3pm)   - a class for well-behaved Web robots
LWP::UserAgent (3pm) - Web user agent class
Mail::DKIM::Algorithm::Base (3pm) - base class for DKIM "algorithms"
Mail::DKIM::Canonicalization::Base (3pm) - base class for canonicalization me...
Mail::DKIM::Policy (3pm) - abstract base class for originator "signing" policies
Mail::Field (3pm)    - Base class for manipulation of mail header fields
Mail::SpamAssassin::Bayes (3pm) - support for learning classifiers
Mail::SpamAssassin::BayesStore (3pm) - Storage Module for default Bayes class...
Mail::SpamAssassin::PersistentAddrList (3pm) - persistent address list base c...
Mail::SpamAssassin::Plugin (3pm) - SpamAssassin plugin base class
Mail::SpamAssassin::Plugin::Bayes (3pm) - determine spammishness using a Baye...
Mail::SPF::Base (3pm) - Base class for Mail::SPF classes
Mail::SPF::MacroString (3pm) - SPF record macro string class
Mail::SPF::Mech (3pm) - SPF record mechanism base class
Mail::SPF::Mech::A (3pm) - SPF record "a" mechanism class
Mail::SPF::Mech::All (3pm) - SPF record "all" mechanism class
Mail::SPF::Mech::Exists (3pm) - SPF record "exists" mechanism class
Mail::SPF::Mech::Include (3pm) - SPF record "include" mechanism class
Mail::SPF::Mech::IP4 (3pm) - SPF record "ip4" mechanism class
Mail::SPF::Mech::IP6 (3pm) - SPF record "ip6" mechanism class
Mail::SPF::Mech::MX (3pm) - SPF record "mx" mechanism class
Mail::SPF::Mech::PTR (3pm) - SPF record "ptr" mechanism class
Mail::SPF::Mod (3pm) - SPF record modifier base class
Mail::SPF::Mod::Exp (3pm) - SPF record "exp" modifier class
Mail::SPF::Mod::Redirect (3pm) - SPF record "redirect" modifier class
Mail::SPF::Record (3pm) - Abstract base class for SPF records
Mail::SPF::Request (3pm) - SPF request class
Mail::SPF::Result (3pm) - SPF result class
Mail::SPF::SenderIPAddrMech (3pm) - Abstract base class for SPF record mechan...
Mail::SPF::Server (3pm) - Server class for processing SPF requests
Mail::SPF::Term (3pm) - SPF record term class
Mail::SPF::Util (3pm) - Mail::SPF utility class
Mail::SPF::v1::Record (3pm) - SPFv1 record class
Mail::SPF::v2::Record (3pm) - Sender ID ("spf2.0") record class
mclasserase (1)      - erase memory cards
MIME::Entity (3pm)   - class for parsed-and-decoded MIME message
MIME::Field::ParamVal (3pm) - subclass of Mail::Field, for structured MIME fi...
MIME::Head (3pm)     - MIME message header (a subclass of Mail::Header)
MIME::Parser (3pm)   - experimental class for parsing MIME streams
Net::Cmd (3pm)       - Network Command class (as used by FTP, SMTP etc)
Net::DNS::Header (3pm) - DNS packet header class
Net::DNS::Packet (3pm) - DNS packet object class
Net::DNS::Question (3pm) - DNS question class
Net::DNS::Resolver (3pm) - DNS resolver class
Net::DNS::Resolver::Base (3pm) - Common Resolver Class
Net::DNS::Resolver::UNIX (3pm) - UNIX Resolver Class
Net::DNS::RR (3pm)   - DNS Resource Record class
Net::FTP (3pm)       - FTP Client class
Net::NNTP (3pm)      - NNTP Client class
Net::POP3 (3pm)      - Post Office Protocol 3 Client class (RFC1939)
NEXT (3pm)           - Provide a pseudo-class NEXT (et al) that allows method...
PerlIO::via (3pm)    - Helper class for PerlIO layers implemented in perl
perlmacos (1)        - Perl under Mac OS (Classic)
perlrecharclass (1)  - Perl Regular Expression Character Classes
perltie (1)          - how to hide an object class in a simple variable
perltooc (1)         - Tom's OO Tutorial for Class Data in Perl
Pod::Parser (3pm)    - base class for creating POD filters and translators
Pod::Simple::Subclassing (3pm) - - write a formatter as a Pod::Simple subclass
sa-learn (1)         - train SpamAssassin's Bayesian classifier
TAP::Base (3pm)      - Base class that provides common functionality to TAP::...
TAP::Formatter::Session (3pm) - Abstract base class for harness output delegate
TAP::Object (3pm)    - Base class that provides common functionality to all "...
TAP::Parser::Iterator (3pm) - Internal base class for TAP::Parser Iterators
TAP::Parser::Result (3pm) - Base class for TAP::Parser output objects
tc-cbq (8)           - Class Based Queueing
tc-cbq-details (8)   - Class Based Queueing
Tie::Array (3pm)     - base class for tied arrays
Tie::Handle (3pm)    - base class definitions for tied handles
Tie::Hash (3pm)      - base class definitions for tied hashes
Tie::Scalar (3pm)    - base class definitions for tied scalars
Tie::StdHandle (3pm) - base class definitions for tied handles
UNIVERSAL (3pm)      - base class for ALL classes (blessed references)
wctype (3)           - wide-character classification
wctype (3p)          - define character class
wctype.h (0p)        - wide-character classification and mapping utilities