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Changed by [EMAIL PROTECTED] http://bugzilla.ximian.com/show_bug.cgi?id=80507 --- shadow/80507 2007-01-29 03:59:52.000000000 -0500 +++ shadow/80507.tmp.1894 2007-01-29 07:35:37.000000000 -0500 @@ -51,6 +51,22 @@ as 3.14E-328 something... In general what non .un comparision is supposed to do if one of the arguments is non-finitive? Thx, + +------- Additional Comments From [EMAIL PROTECTED] 2007-01-29 07:35 ------- +non-un comparisons return false if the arguments are not comparable, +ie. 1.0 < nan is false. Most architectures have fp compare instructions +which take this into account. the un comparisons are needed to implement +the opposite of the normal comparisons, i.e. +(a < b) is bl, while !(a < b) is translated into bge.un. This is because +fp comparisons can return 4 values, not just three: lesser, greater, +equal or unordered. + +To get the representation of nan, try a C program which produces a +nan, like +double d = 0.0 / 0.0; + +and look at the memory occupied by 'd'. + _______________________________________________ mono-bugs maillist - [email protected] http://lists.ximian.com/mailman/listinfo/mono-bugs
