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[adding bug-gnulib, since this affects more than just coreutils]
According to Peter Fales on 2/4/2008 4:00 PM:
| 2) I can see what's happening, though I'm not quite sure how it's supposed
| to work. When the gnulib vsnprintf("%*s",-3,"x") is called, it
| ends up eventually calling the the system snprintf through the
SNPRINTF_BUF
| macro as snprint(result+length, maxlen, "%-*s%n", -3, "x", &count);
|
| It looks like the system snprintf is buggy. I suspect the '-' character
| in the format specification is negating the value of the -3 argument.
Indeed, that seems like the bug. Bruno, it looks like we need to add
another test to the printf replacement suite.
|
| On the system in question, this test program
|
| main()
| {
| int count;
|
| printf("1 %*s%n\n",-3,"x",&count);
| printf("1 %-*s%n\n",-3,"x",&count);
| printf("1 %-*s%n\n",3,"x",&count);
| }
|
| prints
|
| 1 x
| 1 x
| 1 x
And that violates C99/POSIX. Duplication of the `-' flag should not
disable it.
- --
Don't work too hard, make some time for fun as well!
Eric Blake [EMAIL PROTECTED]
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