[Bug-apl] segafult

[Kacper Gutowski]

Hi,

This results in a segmentation fault:

      ⍎¨ "1" "+1"

Program received signal SIGSEGV, Segmentation fault.
0x00000000008a94f8 in ?? ()
(gdb) bt
#0  0x00000000008a94f8 in ?? ()
#1  0x000000000048b437 in Command::do_APL_expression (line=...)
    at Command.cc:231
#2  0x000000000048b35a in Command::process_line () at Command.cc:69
#3  0x000000000057aa6d in Workspace::immediate_execution (exit_on_error=false)
    at Workspace.cc:189
#4  0x0000000000443ee5 in main (argc=<optimized out>, argv=<optimized out>)
    at main.cc:367


-k