Re: Bugs in printf/sprintf formatted output

[arnold]

Hi.

"Maciej W. Rozycki" <macro@redhat.com> wrote:

> - Missing leading zero for signed integer conversions for the specific 
>   precision of one above the number of digits required to represent the 
>   number and negative numbers, e.g.: { printf "%.2i", -1 } prints "-1" 
>   rather than "-01"; similarly { printf "%.3i", -12 }' prints "-12" rather 
>   than "-012".  Other precision values or natural numbers work correctly, 
>   e.g. { printf "%.3i", -1 } prints "-001" as, { printf "%.2i", 1 } prints 
>   "01", etc., as expected.
>
> - The + and space flags not ignored for unsigned integer conversions where 
>   the precision specified causes any leading zeros to be printed, e.g.:
>   { printf "%+.2u", 1 } prints "+01" rather than "01" and then similarly: 
>   { printf "% .3u", 12 } prints " 012" rather than "012".  If no leading 
>   zeros are printed, then output is correct, e.g. { printf "%+.2u", 12 } 
>   prints "12" as expected.

I have added tests for these cases (in test/printf-corners.awk) and
fixed the code so that they now pass. I have pushed to the
stable/printf-rework branch.  Please review.

Thanks again,

Arnold