dc's stack breaks when doing modulo-0

[Markus Gothe]

It's the small one. The bug is but in git-master and at least in 1.22.x

//M

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	  Original Message  



From: gavin.d.howard at gmail.com
Sent: 8 May 2019 19:35
To: busybox at busybox.net
Subject: Re: dc's stack breaks when doing modulo-0


> dc -e '4 0 % p' mess up the stack so bad that my MIPS kernel traps it and reboots.
>
> I think we should, like the regular dc, check for 0 as a divider when doing modulo.
>
> //M

Markus,

Was this the full dc or the small dc? As far as I know (I am the
original author of the full dc), the full dc does, in fact, return an
error and not trap.

Gavin Howard
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