id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
8621	erf function gives wrong results with pgcpp - PGI 10.4	Jacques Desfosses <jacques.desfosses@…>	John Maddock	"Hi experts, 

I compiled the following code with pgcpp / PGI 10.4 on linux.

/opt/pgi-10.4/linux86/10.4/bin/pgcpp main.cpp -o erf.exe


{{{
#include <math.h>
#include <boost/math/special_functions/erf.hpp>
int main()
{
   double val(1.0);
   printf(""BOOST : %-20.15E\n"", boost::math::erf(val));
   printf(""MATH_H: %-20.15E\n"", erf(val));
}
}}}



Output is as follows:

{{{
BOOST : 8.368481544380342E-01
MATH_H: 8.427007929497149E-01
}}}


The value computed by BOOST is incorrect. The same code will give the correct value when compiled with VS2012 with Windows 7-64 bits OS.

My linux box is running SUSE Linux Enterprise Desktop 10 SP2 (x86_64)

Can you please help troubleshoot the problem? Other basic statistic functions will also return wrong values such as cdf and quantile of standard distribution.

Thanks a lot,

Jacques Desfosses"	Bugs	closed	To Be Determined	math	Boost 1.53.0	Problem	fixed	erf pgi