[Bug-apl] Strange bug (more info)

[Christian Robert]

       )clear
CLEAR WS

      a←20?100
      b←15?100
      a
77 7 19 54 24 32 84 40 5 95 97 76 82 92 63 26 10 98 21 50
      b
38 80 99 90 26 30 74 50 85 81 47 76 93 95 88
      a∘.=b
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 1 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 1 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 1 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 1 0 0 0 0 0 0 0
      cmp←{(∨/[1] ⍺∘.= ⍵) / ⍵}
      a cmp b
26 50 76 95
      b cmp a
95 76 26 50
      )save
NOT SAVED: THIS WS IS CLEAR WS
      )wsid test
WAS CLEAR WS
      )save
2016-05-25  22:33:41 (GMT-4) test
      cmp←{{⍵[⍋⍵]} (∨/[1] ⍺∘.= ⍵) / ⍵}
      )save
2016-05-25  22:34:23 (GMT-4) test
      a cmp b


====================================================
SEGMENTATION FAULT

----------------------------------------
-- Stack trace at main.cc:63
----------------------------------------
0x7fc41397d9f0
0x4495e7
========================================
====================================================

Goodbye.
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                     Welcome to GNU APL version 1.5 / 731

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SAVED 2016-05-17 21:09:56 (GMT-4)
      )load test
SAVED 2016-05-25 22:34:23 (GMT-4)
      a cmp b
26 50 76 95
      b cmp a
26 50 76 95
      )off

Goodbye.
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