-----Original Message----- From: boost-users-bounces@lists.boost.org [mailto:boost-users- bounces@lists.boost.org] On Behalf Of David Abrahams Sent: Saturday, July 29, 2006 5:15 PM To: boost-users@lists.boost.org Subject: Re: [Boost-users] g++ warning: comparing floating point with == or!= is unsafe

...

the warning is cause by the code:

// Avoid underflow. if( f1 == static_cast<FPT>(0) || f2 > static_cast<FPT>(1) && f1 < f2 * (std::numeric_limits<FPT>::min)() ) return static_cast<FPT>(0);

Could someone modify the code to allow it to compile without warnings on g++?

Try replacing

f1 == static_cast<FPT>(0)

with

f1

[Nat] Maybe (! f1) instead?