-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 According to Bruno Haible on 3/24/2007 7:04 PM: > Hi, > > How can one distinguish +0.0 and -0.0. printf() needs to be able to do it. > How can this be done portably? I can see two ways: > a) By knowing the bit position of the sign bit. > b) By doing a bit-for-bit comparison against +0.0.
You can also assume IEEE rules, and compare against signed infinity: +0. / 1 => +infinity - -0. / 1 => -infinity - -- Don't work too hard, make some time for fun as well! Eric Blake [EMAIL PROTECTED] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (Cygwin) Comment: Public key at home.comcast.net/~ericblake/eblake.gpg Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFGBe6884KuGfSFAYARAliPAJkBDx/l499EKZvJFxigAAYLRTYHGwCfSEPp viDc1I14TvemUzGehiuOrDY= =OmMu -----END PGP SIGNATURE-----
