[boost] [test] floating point comparison

Hello, Can someone please tell me exactly what do I need to include and which namespace to use to get exact same behavior as: #include <boost/test/floating_point_comparison.hpp> bool check( float a, float b, float tolerance ) { using namespace boost::test_tools; return check_is_close(a,b,fraction_tolerance(tolerance)); } (The above used to work with older Boost versions but no longer.) Thanks, Emil