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Subject: Subject: seq, hexadecimal args and equal width
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Content preview: There is a bug in seq. The equal-width option does not work
with hexadecimal arguments. For example: $❯ seq -w 0x02 0x01 0x10 2 3 4
5 6 7 8 9 10 11 12 13 14 15 16 $> seq -w 0x09.1 0.1 0x10 9,0625 9,1625 9,2625
9,3625 9,4625 9,5625 9,6625 9,7625 9,8625 9,9625 10,0625 10,1625 10,2625
10,3625 ... ... [...]
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--000000000000366186062d636ded
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There is a bug in seq. The equal-width option does not work with
hexadecimal arguments. For example:
$=E2=9D=AF seq -w 0x02 0x01 0x10
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
$> seq -w 0x09.1 0.1 0x10
9,0625
9,1625
9,2625
9,3625
9,4625
9,5625
9,6625
9,7625
9,8625
9,9625
10,0625
10,1625
10,2625
10,3625
...
...
...
In the scan_arg function, ret.width is always set to 0 when the argument
is hexadecimal. Hexadecimal numbers are excluded on purpose, by this if:
seq.c:181: if (! arg[strcspn (arg, "xX")] && isfinite (ret.value))
This causes that for both integer and floating-point hexadecimal numbers,
only the default width and precision are assigned. As a result, later in
the 'get_default_format' function, this if condition is never entered:
seq.c:371: if (prec !=3D INT_MAX && last.precision !=3D INT_MAX)
Resulting in an output format of different width.
As a solution to this problem, I recommend modifying the scan_arg function
to also consider cases with hexadecimal (whether integer or floating-point
hexadecimal) in order to assign them the corresponding width and precision
values. That is the source of the issue.
I hope we can find a suitable solution soon. It is a pleasure to help. Best
regards!
--000000000000366186062d636ded
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
<div dir=3D"ltr">
<font size=3D"2"><span style=3D"font-size:11pt">There is a bug in seq. The =
equal-width option does not work with<br></span></font><div><font size=3D"2=
"><span style=3D"font-size:11pt">
hexadecimal arguments. For example:</span><br></font></div><div><font size=
=3D"2"><br></font></div><div>$=E2=9D=AF seq -w 0x02 0x01 0x10<br>2<br>3<br>=
4<br>5<br>6<br>7<br>8<br>9<br>10<br>11<br>12<br>13<br>14<br>15<br>16<br>$&g=
t; seq -w 0x09.1 0.1 0x10<br>9,0625<br>9,1625<br>9,2625<br>9,3625<br>9,4625=
<br>9,5625<br>9,6625<br>9,7625<br>9,8625<br>9,9625<br>10,0625<br>10,1625<br=
>10,2625<br>10,3625<br>...<br>...<br>...</div><div><br></div><div>
<font size=3D"2"><span style=3D"font-size:11pt">In the scan_arg function, r=
et.width is always set to 0 when the argument<br>
is hexadecimal. Hexadecimal numbers are excluded on purpose, by this if:<br=
><br>
=C2=A0=C2=A0=C2=A0 seq.c:181:=C2=A0 if (! arg[strcspn (arg, "xX")=
] && isfinite (ret.value))</span></font> <br></div><div><br></div><=
div>
<font size=3D"2"><span style=3D"font-size:11pt">This causes that for both=
=20
integer and floating-point hexadecimal numbers, only the default width=20
and precision are assigned. As a result, later in the=20
'get_default_format' function, this if condition is never entered:<=
/span></font></div><div><font size=3D"2"><span style=3D"font-size:11pt"><br=
></span></font></div><div>=C2=A0=C2=A0=C2=A0 <font size=3D"2"><span style=
=3D"font-size:11pt">seq.c:371:=C2=A0 if (prec !=3D INT_MAX && last.=
precision !=3D INT_MAX)</span></font>=20
</div><div><br></div><div>Resulting in an output format of different width.=
</div><div><br></div><div>
As a solution to this problem, I recommend modifying the <code>scan_arg</co=
de> function to also consider cases with hexadecimal (whether integer or fl=
oating-point hexadecimal)
in order to assign them the corresponding width and precision values. That =
is the source of the issue. <br></div><div><br></div><div>
I hope we can find a suitable solution soon. It is a pleasure to help. Best=
regards!
</div><div><br></div><div><br></div><div><br></div><div><br></div><div>
<br></div><br></div>
--000000000000366186062d636ded--
Alexandre Lacoste <a.lacoste.r1996@HIDDEN>:bug-coreutils@HIDDEN.
Full text available.bug-coreutils@HIDDEN:bug#76070; Package coreutils.
Full text available.
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