------- Additional Comments From pinskia at gcc dot gnu dot org 2004-04-25 17:14 ------- Note what -ffast-math does is converts: 90.0/x into 1/x *90.0, so there is a precision loss which causes 1./0f/30.0 * 90.0 != 3.0. So this is still invalid. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15134