SunOS has a function quiet_nan() declared in <math.h>.  This
function does not appear to be defined anywhere in the Solaris
include files.  What can one use instead?

 [The draft provides `std::numeric_limits<T>::quiet_nan()'
  in header <limits>.  See 18.2.1[lib.limits].
  -moderator (fjh).]

Thanks,

Nick
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Nick Lai <nlai@ms.com> writes:

|>  SunOS has a function quiet_nan() declared in <math.h>.  This
|>  function does not appear to be defined anywhere in the Solaris
|>  include files.  What can one use instead?
|>
|>   [The draft provides `std::numeric_limits<T>::quiet_nan()'
|>    in header <limits>.  See 18.2.1[lib.limits].
|>    -moderator (fjh).]

But most implementations don't:-).

Whatever: it is illegal (according to the C standard) for math.h to
contain such a function, at least in strictly conforming mode.  You
might ask Sun support: I suspect that either they have moved it to a
separate header (ieee.h?), or make it available with some combination of
compile flags (-DUSESUNSPECIFICINCLUDES, or some such).

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