id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
10066	math::round broken for some integer types/values	andrew.bell.ia@…	John Maddock	"The current code takes the input (which may be an int type) and adds/subtracts .5f, which may cause precision to be lost as the integer is converted to a float.  math::round should essentially be a noop when the input type is integral.


===========


{{{

#include <iostream>
#include <iomanip>
#include <math.h>
#include <boost/math/special_functions/round.hpp>

int main()
{
    long l = -1230695498;

    std::cerr << ""boost::math::lround(l) = "" << std::setprecision(12) <<
        boost::math::lround(l) << ""\n"";
    std::cerr << ""::lround(l) = "" <<std::setprecision(12) <<
        ::lround(l) << ""\n"";
}

}}}
"	Bugs	closed	To Be Determined	math	Boost 1.55.0	Problem	fixed