id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
4799	Linker error in math library - rint() missing on MS windows platform	larsvmogensen@…	John Maddock	"I tried solving this through the forum, but it seems to be a bug more than newbe problems.

I am using BOOST to do math and have not been able to get the ""findroot_demo.cpp"" example of root finding to work. There seem to be a reference to rint(), which is not implemented in the C++ library for windows. How can I solve this - my understanding of BOOST is that it is cross-platform?

 1>------ Build started: Project: boostfindzero, Configuration: Debug Win32 ------
1>Compiling...
1>findroot_demo.cpp
1>Linking...
1>findroot_demo.obj : error LNK2019: unresolved external symbol _rint referenced in function ""public: static double __cdecl boost::numeric::interval_lib::detail::x86_rounding::to_int(double const &)"" (?to_int@x86_rounding@detail@interval_lib@numeric@boost@@SANABN@Z)
1>D:\dokumenter\lvm_AM\Visual Studio 2008\Projects\boostfindzero\Debug\boostfindzero.exe : fatal error LNK1120: 1 unresolved externals
1>Build log was saved at ""file://d:\dokumenter\lvm_AM\Visual Studio 2008\Projects\boostfindzero\boostfindzero\Debug\BuildLog.htm""
1>boostfindzero - 2 error(s), 0 warning(s)
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

From what I can see in the source this is also a problem with BOOST 1.44.0 version. I am currently limited to the 1.36.0, but will upgrade if this is solved in the next version. 

Maybe BOOST developers should implement a rint() function for the MS Windows users?
"	Bugs	closed	To Be Determined	math	Boost 1.36.0	Showstopper	fixed	rint()