25 Jul
2006
25 Jul
'06
11:01 a.m.
----Original Message---- From: Johan Råde
template<class T> bool is_nan(T a) { return a != a; }
1. Do these implementations work an all platforms?
I believe is_nan is vunerable to over-eager optimizers for built-in types.
2. The category not-a-number can be divided into the sub-categories quite not-a-number and signalling not-a-number. ^^^^^ Should be "quiet". This error has continued throughout the email chain, so it is obviously not just a simple typo (or it is getting copy-and-pasted).
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