[ python-Bugs-789294 ] Solaris Forte 7 &8 bug in test_long

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Sun Mar 21 11:46:50 EST 2004


Bugs item #789294, was opened at 2003-08-15 08:24
Message generated for change (Settings changed) made by bcannon
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=105470&aid=789294&group_id=5470

Category: Python Interpreter Core
Group: Platform-specific
>Status: Closed
>Resolution: Invalid
Priority: 5
Submitted By: Nick Maclaren (nmm1)
Assigned to: Nobody/Anonymous (nobody)
Summary: Solaris Forte 7 &8 bug in test_long

Initial Comment:
Python 2.2.3

This is for information.  It is a bug in Sun's Forte 7
and 8 compiler suite, very unlikely to affect most
people, and I am pursuing it at low priority with Sun.
I am reporting it as it will cause the tests to fail
if anyone switches floating-point trapping on.

In PyFloat_FromString in floatobject.c, there is a
call to strtod.  In test_long, this is supplied with
a huge argument.  Sun have misunderstood C99 (puke)
to state that the wording in Annex F requires strtod
to raise an exception if it overflows, and have again
misunderstood C99 to mean that implies SIGFPE if
trapping is on.  I don't blame them for getting
confused, but their interpretation is wrong - or, at
least that what was stated when C99 was in draft!

Generically, we can expect to see more vendors get
confused by C99, and especially by the horrible
floating-point changes.

Yuck.


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