[Bug-apl] Crash when computing inner product

[Elias Mårtenson]

In trying to fully understand how the . (period) operator works, typed the following command and promptly crashed GNU APL:

(10×2 3⍴⍳6){(⍺+⍵)⊣⎕←'LEFT: ⍺=',(⍕⍺),', ⍵=',(⍕⍵)}.{(⍺×⍵)⊣⎕←'RIGHT: ⍺=',(⍕⍺),', ⍵=',(⍕⍵)}(1000×2 3⍴⍳6)

The output is:

LENGTH ERROR

λ1[1]  λ←(⍺×⍵)⊣⎕←'RIGHT: ⍺=',(⍕⍺),', ⍵=',(⍕⍵)

          ^    ^

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SEGMENTATION FAULT

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-- Stack trace at main.cc:128

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0x7f26884f1b05 __libc_start_main

0x435255  main

0x52153d   Workspace::immediate_execution(bool)

0x46262d    Command::process_line()

0x461557     Command::process_line(UCS_string&)

0x44dea0      Bif_OPER2_PRODUCT::eoc_inner_product(Token&, EOC_arg&)

0x44bda2       Bif_OPER2_PRODUCT::finish_inner_product(EOC_arg&)

0x7f268a549880        

0x47931a         

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Regards,

Elias