[Bug-apl] segmentation fault in svn 639

[alexweiner]

Type this line:

      ⎕ex5 5 ⍴ '3 3   '

and then this segmentation error happens:

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SEGMENTATION FAULT

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-- Stack trace at main.cc:63

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0x7f78c4e6aead __libc_start_main

0x454215  main

0x544885   Workspace::immediate_execution(bool)

0x490922    Command::process_line()

0x490107     Command::do_APL_expression(UCS_string&)

0x499890      Executable::execute_body() const

0x5051f0       StateIndicator::run()

0x4c2d9e        Prefix::reduce_statements()

0x4c291f         Prefix::reduce_MISC_F_B_()

0x4e2eee          Quad_EX::eval_B(Value_P)

0x53eed0           Value::to_varnames(std::vector<UCS_string, std::allocator<UCS_string> >&, bool) const

0x7f78c5b9d0a0            

0x458f7a             

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