Hi Boost developers, I am a PhD student at Eotvos Lorand University, Budapest. My research area covers C++ template metaprogramming. As part of my research I have developed four template metaprogram libraries based on Boost.MPL. On my conference appearances I was encouraged to submit my libraries to the Boost sandbox. Here is a short summary of the libraries: metaparse A tool for building embedded DSLs in C++. This is a compile-time parser generator library. Using it one can build parsers that take compile-time strings as input text and parse them as part of the C++ compilation process. One can think of it as using Spirit at compile-time. safe_printf Typesafe printf implementation using metaparse. It provides printf (sprintf, fprintf) functions taking the format string as a template argument and type-checking it at compile-time. It is a practical application of the metaparse library. metamonad Monad implementation for C++ template metaprograms. The library provides a framework for using monads in C++ at compile-time. The library provides an embedded language for C++ template metaprogramming similar to Haskell's do-notation. Using it, template metaprograms can be written with a syntax that resembles procedural code. Unlike the approach presented at this year's Boostcon, my library focuses on monads evaluated completely at compile-time. The library contains implementations for a number of monads available in Haskell (Maybe, Either, Reader, Writer, State, etc.). As an addition, the library contains a monad for error propagation in C ++ template metaprogramming. Based on the similarities of monadic error propagation and exception handling in runtime C++, the library provides an embedded language that resembles to exception handling. Using it, one can throw and catch "exceptions" at compile-time. metatest Unit testing library for C++ template metaprograms. If a metaprogram test case fails, it does not produce compilation error, but makes the result information available at runtime. Using this one can generate advanced reports and integrate the results into unit testing frameworks for runtime C++ code. The library contains code that integrates it with Boost.Test. The source code, unit tests and examples for the library are available at http://github.com/sabel83/mpllibs I've tested the libraries with the following compilers: - gcc 4.5 - clang 2.8 - Visual C++ 10 Full documentation of the libraries can be found at http://abel.web.elte.hu/mpllibs. Publications related to the libraries: http://abel.sinkovics.hu/?mod=kutat I would like to ask you for access to the Boost sandbox and I would appreciate all feedback from the Boost community. Best regards, Abel Sinkovics