Review Wizard Status Report for November 2007

News

November 7, 2007 - Exception Library Accepted
Announcement: http://lists.boost.org/boost-users/2007/11/31912.php

We need experienced review managers. Please take a look at the list of libraries in need of managers and check out their descriptions. In general review managers are active boost participants or library contributors. If you can serve as review manager for any of them, email Ron Garcia or John Phillips, "garcia at cs dot indiana dot edu" and "jphillip at capital dot edu" respectively.

A link to this report will be posted to www.boost.org. If you would like us to make any modifications or additions to this report before we do that, please email Ron or John.

If you're library author and plan on submitting a library for review in the next 3-6 months, send Ron or John a short description of your library and we'll add it to the Libraries Under Construction below. We know that there are many libraries that are near completion, but we have hard time keeping track all of them. Please keep us informed about your progress.

Review Queue


Finite State Machines

Author:Andrey Semashev
Review Manager:Martin Vuille
Download:Boost Sandbox Vault
Description:

The Boost.FSM library is an implementation of FSM (stands for Finite State Machine) programming concept. The main goals of the library are:

  • Simplicity. It should be very simple to create state machines using this library.
  • Performance. The state machine infrastructure should not be very time and memory-consuming in order to be applicable in more use cases.
  • Extensibility. A developer may want to add more states to an existing state machine. A developer should also be able to specify additional transitions and events for the machine with minimum modifications to the existing code.

Floating Point Utilities

Author:Johan Råde
Review Manager:Need Volunteer
Download:Boost Sandbox Vault
Description:

The Floating Point Utilities library contains the following:

  • Floating point number classification functions: fpclassify, isfinite, isinf, isnan, isnormal (Follows TR1)
  • Sign bit functions: signbit, copysign, changesign (Follows TR1)
  • Facets that format and parse infinity and NaN according to the C99 standard (These can be used for portable handling of infinity and NaN in text streams).

Switch

Author:Steven Watanabe
Review Manager:Need Volunteer
Download:Boost Sandbox Vault
Description:The built in C/C++ switch statement is very efficient. Unfortunately, unlike a chained if/else construct there is no easy way to use it when the number of cases depends on a template parameter. The Switch library addresses this issue.

Property Map (fast-track)

Author:Andrew Sutton
Review Manager:Jeremy Siek
Download:http://svn.boost.org/svn/boost/sandbox/graph-v2
Description:

A number of additions and modifications to the Property Map Library, including:

  • A constant-valued property map, useful for naturally unweighted graphs.
  • A noop-writing property map, useful when you have to provide an argument, but just don't care about the output.
  • See ChangeLog for details.

Graph (fast-track)

Author:Andrew Sutton
Review Manager:Jeremy Siek
Download:http://svn.boost.org/svn/boost/sandbox/graph-v2
Description:

A number of additions and modifications to the Graph Library, including:

  • Two new graph classes (undirected and directed) which are intended to make the library more approachable for new developers
  • A suite of graph measures including degree and closeness centrality, mean geodesic distance, eccentricity, and clustering coefficients.
  • An algorithm for visiting all cycles in a directed graph (Tiernan's from 1970ish). It works for undirected graphs too, but reports cycles twice (one for each direction).
  • An algorithm for visiting all the cliques a graph (Bron&Kerbosch). Works for both directed and undirected.
  • Derived graph measures radius and diameter (from eccentricity) and girth and circumference (from Tiernan), and clique number (from Bron&Kerbosch).
  • An exterior_property class that helps hides some of the weirdness with exterior properties.
  • runtime and compile-time tests for the new algorithms.
  • a substantial amount of documentation
  • Graph cores, implemented by David Gleich (@Stanford University)
  • Deterministic graph generators - capable of creating or inducing specific types of graphs over a vertex set (e.g., star graph, wheel graph, prism graph, etc). There are several other specific types that could be added to this, but I haven't had the time just yet.

Forward (fast-track)

Author:Tobias Schwinger
Review Manager:John Torjo
Download:http://boost-consulting.com/vault/index.php?&direction=0&order=&directory=X-Files
Description:A brute-force solution to the forwarding problem.

Singleton (fast-track)

Author:Tobias Schwinger
Review Manager:John Torjo
Download:http://boost-consulting.com/vault/index.php?&direction=0&order=&directory=X-Files
Description:Three thread-safe Singleton templates with an easy-to-use interface.

Factory (fast-track)

Author:Tobias Schwinger
Review Manager:John Torjo
Download:http://boost-consulting.com/vault/index.php?&direction=0&order=&directory=X-Files
Description:Generic factories.

Lexer

Author:Ben Hanson
Review Manager:Need Volunteer
Download:http://boost-consulting.com/vault/index.php?action=downloadfile&filename=boost.lexer.zip&directory=Strings%20-%20Text%20Processing&
Description:A programmable lexical analyser generator inspired by 'flex'. Like flex, it is programmed by the use of regular expressions and outputs a state machine as a number of DFAs utilising equivalence classes for compression.

Thread-Safe Signals

Author:Frank Hess
Review Manager:Need Volunteer
Download:http://www.boost-consulting.com/vault/index.php?&direction=0&order=&directory=thread_safe_signals
Description:A thread-safe implementation of Boost.signals that has some interface changes to accommodate thread safety, mostly with respect to automatic connection management.

Logging

Author:John Torjo
Review Manager:Need Volunteer
Download:http://torjo.com/log2/
Description:Used properly, logging is a very powerful tool. Besides aiding debugging/testing, it can also show you how your application is used. The Boost Logging Library allows just for that, supporting a lot of scenarios, ranging from very simple (dumping all to one destination), to very complex (multiple logs, some enabled/some not, levels, etc). It features a very simple and flexible interface, efficient filtering of messages, thread-safety, formatters and destinations, easy manipulation of logs, finding the best logger/filter classes based on your application's needs, you can define your own macros and much more!

Flyweight

Author:Joaquín M López Muñoz
Review Manager:Need Volunteer
Download:http://www.boost-consulting.com/vault/index.php?action=downloadfile&filename=flyweight.zip&directory=Patterns
Description:Flyweights are small-sized handle classes granting constant access to shared common data, thus allowing for the management of large amounts of entities within reasonable memory limits. Boost.Flyweight makes it easy to use this common programming idiom by providing the class template flyweight<T>, which acts as a drop-in replacement for const T.

Unordered Containers

Author:Daniel James
Review Manager:Need Volunteer
Download:http://www.boost-consulting.com/vault/index.php?action=downloadfile&filename=unordered.zip&directory=Containers
Description:An implementation of the unordered containers specified in TR1, with most of the changes from the recent draft standards.

Libraries under development

Dataflow

Author:Stjepan Rajko
Description:The Dataflow library provides generic support for data producers, consumers, and connections between the two. It also provides layers for several specific dataflow mechanisms, namely Boost.Signals, VTK data/display pipelines, and plain pointers. The Dataflow library came out of the Signal Network GSoC project, mentored by Doug Gregor.
Status:I am polishing the Dataflow library for submission, and am expecting to add it to the review queue in the next couple of months. I am currently ironing out some faults in the design of the library, filling in missing features, and testing it on / adapting it to different dataflow mechanisms (currently VTK and soon Boost.Iostreams). As soon as I'm pretty sure that things are going the right way, I'll submit this to the review queue while I do the finishing touches.

Constrained Value

Author:Robert Kawulak
Download:

http://rk.go.pl/f/constrained_value.zip

http://rk.go.pl/r/constrained_value (Documentation)

Description:The Constrained Value library contains class templates useful for creating constrained objects. The simplest example of a constrained object is hour. The only valid values for an hour within a day are integers from the range [0, 23]. With this library, you can create a variable which behaves exactly like int, but does not allow for assignment of values which do not belong to the allowed range. The library doesn't focus only on constrained objects that hold a value belonging to a specified range (i.e., bounded objects). Virtually any constraint can be imposed using appropriate predicate. You can specify what happens in case of assignment of an invalid value, e.g. an exception may be thrown or the value may be adjusted to meet the constraint criterions.
Status:I'm planning to finish it in 1-2 months.

Please let us know of any libraries you are currently developing that you intend to submit for review.