BUG: parameter not created

[Felix Rosencrantz <f_rosencrantz@yahoo.com>]

I'm able to generate a BUG message and stack trace with the following command:
zsh -f
% (( aarray[abc]++ ))
% (( aarray[abc]++ ))
BUG: parameter not created
zsh: segmentation fault (core dumped)

Here's the stack trace.
#0  0x85c54 in setnparam (s=0x187e8e "[abc]", val={u = {
        l = 0x0000000000000001, d = 4.9406564584124654e-324}, type = 1})
    at params.c:1946
#1  0x70330 in setvar (s=0x187e88 "aarray[abc]", v={u = {
        l = 0x0000000000000001, d = 4.9406564584124654e-324}, type = 1})
    at math.c:505
#2  0x718c0 in op (what=4) at math.c:802
#3  0x72ba8 in mathparse (pc=17) at math.c:1088
#4  0x72054 in mathevall (s=0x187e74 " aarray[abc]++ ", prek=17, ep=0xefffe94c)
    at math.c:920
#5  0x7220c in matheval (s=0x187e74 " aarray[abc]++ ") at math.c:956
#6  0x7229c in mathevali (s=0x187e74 " aarray[abc]++ ") at math.c:967
#7  0x42ab4 in execarith (state=0xefffebd8, do_exec=0) at exec.c:3010
#8  0x38dfc in execsimple (state=0xefffebd8) at exec.c:757
#9  0x38f98 in execlist (state=0xefffebd8, dont_change_job=0, exiting=0)
    at exec.c:801
#10 0x38c44 in execode (p=0x187e40, dont_change_job=0, exiting=0) at exec.c:727
#11 0x5a94c in loop (toplevel=1, justonce=0) at init.c:150
#12 0x2406c in main (argc=2, argv=0xefffed64) at ./main.c:98


-FR


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