Sorry about the previous, empty e-mail. We were having mail server problems at my company. Below is the content of my original mail: Hello, The following sample program: #include <cstdio> #include <iostream> #include <limits> #include <boost/format.hpp> int main(int argc, char* argv[]) { std::cout << boost::format("%f") % std::numeric_limits<float

::infinity() << std::endl; std::printf("%f", std::numeric_limits<float>::infinity()); return 0; }

produces 1.00000000000000000000000000....00000000000000000.#INF00 with Boost.Format, but 1.#INF00 with printf. Is this a bug or shouldn't I expect the same behavior from Boost.Format for special floating point values such as NaN and infinity? Note that using %g instead of %f, that is: std::cout << boost::format("%g") % std::numeric_limits<float>::infinity() << std::endl; prints the same thing as printf, i.e. 1.#INF00 This is using Boost 1.32.0 with MSVC 7.1 on Windows. Best Regards, Martin TAB Austria Haiderstraße 40 4052 Ansfelden Austria Phone: +43 7229 78040-218 Fax: +43 7229 78040-209 E-mail: martin.ecker@tab.at http://www.tab.at