The following patch has beeen tested with the new Borland compiler only, but looks like it should appy for earlier versions too: cvs diff -wb -- boost\math\octonion.hpp (in directory E:\sourceforge\devel\boost\) Index: boost/math/octonion.hpp =================================================================== RCS file: /cvsroot/boost/boost/boost/math/octonion.hpp,v retrieving revision 1.14 diff -w -b -r1.14 octonion.hpp 47c47 < return(octonion(static_cast<type>(0),b,c,d,e,f,g,h)); \ ---

return(

octonion<type>(static_cast<type>(0),b,c,d,e,f,g,h)); \ Note that for once the patch is NOT supplied with a BOOST_WORKAROUND, as it is part of a large macro already, and we can't sneak #if statements into a macro ;¬) -- AlisdairM