// time_duration can not be formatted with boost_format for more than 99 hours
#include <iostream>
#include <boost/format.hpp>
#include <boost/date_time/posix_time/posix_time.hpp>

int main() {
    // Output for up to 24 is ok
    std::cout << boost::format( "%1%" ) % boost::posix_time::time_duration( 23, 59, 59, 9999 ) << std::endl;
    // This is still working
    std::cout << boost::format( "%1%" ) % boost::posix_time::time_duration( 99, 59, 59, 9999 ) << std::endl;
    // Stopped working as of revision https://svn.boost.org/trac/boost/changeset/49874
    // This asserts with a debug build, in time_facet
    std::cout << boost::format( "%1%" ) % boost::posix_time::time_duration( 100, 0, 0, 0 ) << std::endl;
}