Free libraries software for linux

simplesettings 0.5 is an excellent tool for programmers. It provides simple settings for initialization for third party apps and libraries in Python.

Vortex Library is a BEEP Core protocol implementation, following the standard definitions in RFC 3080 and RFC 3081.
Vortex Library has a clean and easy-to-use API that allows you to write new protocols or user applications.
Vortex Library has been developed within the Af-Arch project, and it is being used at the data transport layer. However, Vortex Library can be used independently of Af-Arch.
Currently Vortex Library is supported in all Microsoft Windows Platforms as well as Linux.
Enhancements:
- A general update was done to make this release more usable on Microsoft Windows, using Visual Studio compilers.
- Missing support was added to enable getting error codes reported by peer at channel creation.
- Now xml-rpc-gen is able to include user code into the IDL definition that is placed at the resulting XML-RPC server.

NetSieben SSH Library is a Secure Shell client software written in C++. NetSieben SSH Library utilizes Botan library for its cryptographic functions, allowing for a large choice of algorithms to be used in SSH communications.
As a developer you may wish to integrate SSH client functionality into your applications. You can now use the NetSiebens API, instead of spending countless hours developing your own solution.
The SSH library was created by the NetSieben developers who, after researching the limited number of options available to them from both commercial and open source communities, found these solutions limited and at best, still in early stages of development.
Enhancements:
- A fix for an error logging issue seen during authentication, more detailed authentication error messages, an easier error reporting interface, fixes for some debugging issues in the Windows port, and new code examples that reflect the changes to the error reporting interface.

Libcwd is a full-featured and well-documented library that assists C++ developers with debugging their applications.
C++ Debugging Support library includes support for ostream-based debug output, custom debug channels and devices, memory allocation debugging, run-time sourcefile:linenumber information, and demangled type names of variables. It is thread-safe.
Main features:
- End-users of an application dont need to install libcwd.
- The use of namespaces prevents name collisions between debug channels of different libraries.
- Debug channels and devices can be turned on or off on a per thread basis.
- All debug code can be omitted from the executable by not defining a single CWDEBUG macro.
- Code using libcwd looks clean and is surveyable as a result of using a few well-defined macros, avoiding the need of disturbing #ifdef CWDEBUG ... #endif constructs.
- Debug output is written to an ostream and as such type-safe and customizable as is usual for C++ ostreams.
- An arbitrary number of debug channels and debug devices can be created without any penalty in terms of cpu usage.
- Full support for all forms of iterative and recursive calls.
- Debug output is surveyable as a result of several possibilities to format the output, like a margin string, a marker string, indentation and fixed-width channel labels. All formatting is thread specific.
- Printing the type of arbitrary variables in demangled form.
- Printing addresses in source file:line number presentation.
- Deallocation pointer validation.
- Magic numbers around allocated memory blocks in order to detect buffer overruns.
- Printing an overview of current memory allocations, including start address, size, type of allocated object, source file and line number of allocation and a user definable description.
- Finding allocation information with only a pointer that points inside an allocated memory block, in logarithmic time.
Enhancements:
- This release adds support for x86_64.

TOAD C++ GUI Library aims to make GUI development being more fun.
The TOAD C++ GUI Library is a set of C++ classes for developing X Window applications. Since there are so many other GUI libraries around (the living ones: GTK+, Qt, LessTif, Motif, fltk, Xclasses, notif, OpenLook, wxWindows, Fox and the dead ones: SUIT, Andrew Toolkit, InterViews, Fresco, XForms, ET++, Common Point and many more) you may ask yourself why one should use the TOAD C++ GUI Library? Take a look at it and you will see the answer (or not ;) ).
The TOAD C++ GUI Library is free software under the terms of the GNU Lesser General Public License 2.1 (LGPL).
Main features:
- UTF-8 text encoding
- True Color and color dithering on 4 to 8 bit display depths
- Platform independent font specification via fontconfig (for both X11 and FreeType fonts)
- Pluggable Layout Managers
- 2D vector graphic editor and PostScript(TM) output
- Minimal HTML Viewer for Online Documentation
- ISO C++ Template based Signal & Slot alike callbacks with optional closures
- Model-View Architecture
- Decoupled Menubar
- Methods and the menubar/toolbar are connected automatically over the window hierarchy.
- Decoupled Undo Management
- Undo objects and undomangers/menubars are connected automatically over the window hierarchy.
- Runtime Layout Editor
- Layouts of dialogs, menubars, formlayouts, etc. can be configured at runtime.
- ATV based Object Serialisation

PoJoe Component Libraries project is a set of Java POJO components, originally developed for OSMQ. Developers have found these components useful in building robust enterprise applications.
Of note are: a FIFO queue that utilizes memory until a size threshold is reached, paging overflow elements to a disk cache; a dynamic discovery mechanism for locating remote processes by name over an IP network, eliminating the need to identify a remote service with a specific host computer; and a set of peer-to-peer async message components that support n concurrent message publishers for each named subscriber.
Enhancements:
- Minor enhancements and bugfixes, and changing the license from GNU Lesser to Apache 2.0.

The Configuration File Library (CFL) is a collection of routines for manipulating configuration files. The project is a portable library fully written from scratch in pure ANSI C.

It is designed to offer for C programmers common routines for manipulating configuration text files.

Redland RDF library is a set of free software packages that provide support for the Resource Description Framework (RDF).
Main features:
- Modular, object based libraries written in C.
- APIs for manipulating the RDF graph, triples, URIs and Literals.
- Triple sequences for efficient streaming.
- Parsers and Serializers for reading and writing RDF as RDF/XML, N-Triples and Turtle Terse RDF Triple Language syntaxes via the Raptor RDF Parser Toolkit.
- Storage for graphs in memory, with Sleepycat/Berkeley DB, MySQL 3/4, AKT Triplestore, SQLite, files or URIs.
- Querying with RDQL and SPARQL using the Rasqal RDF Query Library.
- Redland contexts for managing data aggregation and recording provenance.
- Language Bindings in C#, Java, Obj-C, Perl, PHP, Python, Ruby and Tcl via the Redland Bindings package.
- Command line utility programs rdfproc (RDF), rapper (parsing) and roqet (query).
- Portable, fast and with no known memory leaks.
Enhancements:
- The code was updated to use Rasqal RDF query library 0.9.14 and Raptor RDF parser/serializer library 1.4.15.
- A new transaction API was added, implemented with MySQL for consistent changes to the graph.
- A new query results formatter class was added.
- Many other bugs were fixed.