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`foo=foo; (( foo ))' => infinite recursion

X-seq: zsh-workers 10037
From: Alexandre Duret-Lutz <duret_g@xxxxxxxx>
To: zsh-workers@xxxxxxxxxxxxxxx
Subject: `foo=foo; (( foo ))' => infinite recursion
Date: 09 Mar 2000 21:10:19 +0100
Mailing-list: contact zsh-workers-help@xxxxxxxxxxxxxx; run by ezmlm

An easy way to die.

~ % zsh -f
phobos% foo=foo; (( foo ))
zsh: segmentation fault  zsh -f

#0  0x8080add in mathevall (s=0x80e5890 "foo", prek=17, ep=0xbf800308)
    at ../../latest/Src/math.c:855
855     {
(gdb) bt
#0  0x8080add in mathevall (s=0x80e5890 "foo", prek=17, ep=0xbf800308)
    at ../../latest/Src/math.c:855
#1  0x8080d13 in matheval (s=0x80e5890 "foo") at ../../latest/Src/math.c:923
#2  0x808bc5b in getnumvalue (v=0xbf800384) at ../../latest/Src/params.c:1423
#3  0x808c81d in getnparam (s=0x401e09bb "") at ../../latest/Src/params.c:1655
#4  0x808100a in mathparse (pc=17) at ../../latest/Src/math.c:1011
#5  0x8080be2 in mathevall (s=0x80e5890 "foo", prek=17, ep=0xbf800ad8)
    at ../../latest/Src/math.c:888
#6  0x8080d13 in matheval (s=0x80e5890 "foo") at ../../latest/Src/math.c:923
#7  0x808bc5b in getnumvalue (v=0xbf800b54) at ../../latest/Src/params.c:1423
#8  0x808c81d in getnparam (s=0x401e09b3 "") at ../../latest/Src/params.c:1655
#9  0x808100a in mathparse (pc=17) at ../../latest/Src/math.c:1011
#10 0x8080be2 in mathevall (s=0x80e5890 "foo", prek=17, ep=0xbf8012a8)
    at ../../latest/Src/math.c:888
#11 0x8080d13 in matheval (s=0x80e5890 "foo") at ../../latest/Src/math.c:923
#12 0x808bc5b in getnumvalue (v=0xbf801324) at ../../latest/Src/params.c:1423
#13 0x808c81d in getnparam (s=0x401e09ab "") at ../../latest/Src/params.c:1655
#14 0x808100a in mathparse (pc=17) at ../../latest/Src/math.c:1011
#15 0x8080be2 in mathevall (s=0x80e5890 "foo", prek=17, ep=0xbf801a78)
    at ../../latest/Src/math.c:888

... and so on ...

-- 
Alexandre Duret-Lutz

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