Eric Niebler wrote:

I infer from the wrappers in tr1/random.hpp that Boost.Random is not TR1-compliant. What are the differences, and what is the plan for bringing Boost.Random into conformance?

Unfortunately there are quite a few open issues against Boost.Random, as well as the interface being non-TR1 conforming.

Also, are the wrappers in tr1/random.hpp TR1-compliant, or are there still some differences?

They're pretty much conforming on the interface front: from the TR1 docs: "The Boost implementation has the following limitations: * The linear_congruential generator is fully supported for signed integer types only (unsigned types probably only work when the modulus is zero). * The subtract_with_carry template does not support a modulus of zero. * Not all of the standard generator types have Boost documentation yet, they are none the less supported however. * Class template variate_generator does not have a template unary function call operator(), only the non-template nullary version. Note also that most of the Random number generators have been re-implemented as thin wrappers around the Boost versions in order to provide a standard conforming interface (the Boost versions all take an additional, redundant, template parameter, and are initialized by iterators rather than functors). " But those were just the issues I noticed when throwing the TR1 wrapper-headers together, you might want to look through the Trac issues-list to see what else is outstanding. HTH, John.