[Boost-bugs] [Boost C++ Libraries] #4799: Linker error in math library - rint() missing on MS windows platform

Subject: [Boost-bugs] [Boost C++ Libraries] #4799: Linker error in math library - rint() missing on MS windows platform
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-10-29 08:37:19

#4799: Linker error in math library - rint() missing on MS windows platform
-------------------------------------+--------------------------------------
 Reporter:  larsvmogensen@…          |       Owner:  johnmaddock
     Type:  Bugs                     |      Status:  new        
Milestone:  To Be Determined         |   Component:  math       
  Version:  Boost 1.36.0             |    Severity:  Showstopper
 Keywords:  rint()                   |  
-------------------------------------+--------------------------------------
 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_at_x86_rounding_at_detail@interval_lib_at_numeric@boost@@SANABN_at_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?

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4799>
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