C Advio

Attached is an updated version of c++advio, an advanced i/o & arithmetic compression classlib, Mac distribution. The new version is more portable: besides a Mac, the source code compiles and correctly runs on various UNIX boxes (Sun/Solaris, HP 9000/7xx, FreeBSD, DEC Alpha), and even Win95/WinNT. The package pulls off a few tricks (like accessing a single file buffer from several (byte/bit/compression) streams, or substituting a base class in a compiled hierarchy). Yet the package compiles and correctly works with both GNU (libg++) and a template-based Modena C++ stream libraries (in CodeWarrior's Metrowerks Standard Library, MSL C++). For the first time, this release of c++advio includes a Vocabulary package, (poly/homo)morphic dictionaries with a dynamic "inheritance" path. The new version also adds a few utility C++ functions, and code to validate them. c++advio: Various advanced i/o codings of streams of integers Keywords: arithmetic coding, start-stop coding, endian i/o, compression, fall-back Hot points: - variable-bit coding of sequences of integers (including the Arithmetic compression) - explicit endian specification in dealing with integer streams - a trick of sharing a stream buffer (a "file") among several streams - with a validation code to verify everything - simple database service (vocabulary) featuring polymorphism, late binding, and dynamic inheritance - with a commented source and CW11 projects Please see a README file for more details. Contents: README - tells what this is all about and how to use it c++serv.dr - tells what the other files are for libserv.a - compiled PowerMac library libserv.pi - project to make it *.h, *.cc - source code v*.cc - verification code (test cases) test suite.stat - stationary for validation projects Run Validation Tests - AppleScript applet to run them ANSI #includes addenda - portability extensions (for non-gcc compilers) Language: C++, CodeWarrior11 System: System 7.x (7.5.5) but probably 6.x is OK, too. Comments to: oleg@pobox.com or oleg@acm.org Version 2.3, Mar 1997