The library has been reviewed by a number of boost contributors, including Paul Bristow, Ilya Buchkin, Fernando Cacciola, Daryle Walker and others. Thanks for your effort! Taking the review comments into considerations, the library will not be accepted into boost at its present state. Here's a short summary of what I believe are the most outstanding issues, but each review comment should be taken into account individually for a rework. - The documentation needs serious overhaul in both presentation and content. Words such as "precision" and "scale" should be defined, not all readers are experts in the domain. Specific technical requirements on the abstract type to be defined should be layed out ("financial applications" is not enough), and sound reasoning in the forest of alternatives should be provided. A comparison of the design to other programming languages or numerics standards is appreciated. Detailed semantics of each of the functions should be given, possibly similar in layout as the description of the standard library in the C++ standard. The discussion of the internal implementation should be moved to the very end to not distract readers from the interface. - The design should be reviewed. What happens with overflow? Financial people may want overflow signalled instead of silently eaten and producing wrong results. What happens with intermediate loss of precision? A number type is very surprising if its +,* operations are non-commutative. For a relatively simple value-based numerical type, inability to serve as a value type for STL containers is not acceptable. Providing a multitude of maths operators for various alien types such as int, double, and string instead of conversion or explicit constructors requires detailed reasoning to support the added complexity. On the positive side, boost::numeric has been agreed as the namespace for the library, and fixed_decimal appears to be a good name given the very interesting idea of standardized floating-point decimal numbers. Plus, the rounding control appears really ingenious syntax-wise. Nonetheless, thanks to Bill Seymour for bringing forward this library. Some boost readers wishing to code financial applications may now better understand the issues involved. Personally, I'm looking forward to a IEEE-conforming decimal floating-point library. Jens Maurer, Review Manager