maxval on -inf and nan in Fortran

[Thomas Koenig]

Am 28.02.20 um 17:58 schrieb Steve Kargl:
> Replacing MIN_EXPR/MAX_EXPR (everywhere?) would seem to
> be a pessimization for correctly written code.

Also note the following part of changes.html for 9.2:

The MAX and MIN intrinsics are no longer guaranteed to return any
particular value in case one of the arguments is a NaN. Note that this
conforms to the Fortran standard and to what other Fortran compilers do.
If there is a need to handle that case in some specific way, one needs
to explicitly check for NaN's before calling MAX or MIN, e.g. by using
the IEEE_IS_NAN function from the intrinsic module IEEE_ARITHMETIC.

This was discussed (and decided) at the time.

Regards

	Thomas