id summary reporter owner description type status milestone component version severity resolution keywords cc 6649 when i try to implement bimap, i have the following compiling error. kuo7288@… Matias Capeletto "../boost/boost/functional/hash/detail/hash_float.hpp:65: error: call of overloaded ‘fpclassify(float&)’ is ambiguous gcc/x86_64-redhat-linux/4.4.6/../../../../include/c++/4.4.6/cmath:497: note: candidates are: typename __gnu_cxx::__enable_if::__type std::fpclassify(_Tp) [with _Tp = float] I have no clue why this is happening, i thought it was fixed https://svn.boost.org/trac/boost/ticket/2033" Bugs closed To Be Determined bimap Boost 1.48.0 Problem duplicate fpclassify cmath bimap