id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
12209	cpp_bin_float: Subtraction of negative infinity from negative number produces negative infinity	Michael Shatz	John Maddock	"cpp_bin_float: subtraction of negative infinity from negative number produces negative infinity instead of positive infinity.

Platform: Mingw, gcc 5.3.0, x64. All optimization levels. 
Library version: newest files from github 
1.60.0 also produces wrong result, but there it is nan rather than -inf"	Bugs	closed	Boost 1.62.0	multiprecision	Boost Development Trunk	Problem	fixed