[Python-Dev] 2.1c1: test_format failing?

[Tim Peters]

[Mark Favas]
> I've tried the test program on a few of my Tru64 boxes (with different
> versions of the OS and different versions of the compiler) and all
> print "00".

Then that's why Python '%#o' % 0 also returns "00" (formats of short ints use
the platform sprintf).  As far as I'm concerned, then, this is a
long-standing bug in Compaq's C (the blurb I quoted before was verbatim from
the C standard, and addressed this specific case).

I expect you'll find that '%#o' % 0L returns "0" even on your box, because
Python does its own formats on long ints.

As time goes on, and we eradicate the differences between ints and longs, I
expect we'll end up using the Python long int format code all the time.

Before then, I'm disinclined to add more code to the short int case trying to
worm around platform C bugs, unless at least one other platform is found
where

#include <stdio.h>
void main() {
    printf("%#o\n", 0);
}

prints 00.

BTW, what does this print for you (just changing "o" to "x")?

#include <stdio.h>
void main() {
    printf("%#x\n", 0);
}

If they print 0x0 for that (they're supposed to print 0), current CVS Python
will assert-fail in debug mode on '%#x' % 0.