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[Octave-bug-tracker] [bug #36278] Sprintf %d bugs
From: |
Rik |
Subject: |
[Octave-bug-tracker] [bug #36278] Sprintf %d bugs |
Date: |
Thu, 14 Mar 2013 16:43:45 +0000 |
User-agent: |
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:19.0) Gecko/20100101 Firefox/19.0 |
Follow-up Comment #5, bug #36278 (project octave):
>From Michael's testing,
>> sprintf ('%d', 1.3e15)
ans =
1.300000e+15
>> sprintf ('%ld', 1.3e15)
ans =
1300000000000000
>> version
ans =
7.9.0.529 (R2009b)
>>
Matlab appears to be fiddling with the format conversion string when the
result would overflow. In this case, '%d' is replaced by '%e'.
Seems like there would be quite a penalty to check all numbers against the
format string rather than just handing everything over to the underlying C
library routine.
It is definitely a compatibility issue, but maybe we don't want to fix it.
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