On Wed, 27 Apr 2011, Alexander Belopolsky wrote:
High performance applications that rely on non-reflexivity will still
have an option of using ctypes.c_float type or NumPy.
Python could also provide IEEE-754 equality as a function (perhaps in
"math"), something like:
def ieee_equal (a, b):
return a == b and not isnan (a) and not isnan (b)
Of course, the definition of math.isnan cannot then be by checking its
argument by comparison with itself - it would have to check the
appropriate bits of the float representation.
Isaac Morland CSCF Web Guru
DC 2554C, x36650 WWW Software Specialist
_______________________________________________
Python-Dev mailing list
Python-Dev@python.org
http://mail.python.org/mailman/listinfo/python-dev
Unsubscribe:
http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
