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Re: [Bug-apl] something is wrong with 4⎕cr

From: Christian Robert
Subject: Re: [Bug-apl] something is wrong with 4⎕cr
Date: Mon, 04 May 2015 21:47:13 -0400
User-agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.6.0

As I understand (may be wrong as usual)
trying to display an error via diadic ⎕cr is aborting your session.

I really think it's a bug. Abort is the worst thing in software, but it has his 


On 2015-05-04 20:32, address@hidden wrote:
Hi bug-apl,
Check out this example. Without 4 ⎕cr I recieve a syntax error, as expected, 
but when I try to display the output using 4⎕cr , I recive a stack trace (the 
previous comma is grammatical, not APL-al). I hae not tried with other values 
of ⎕cr :

.⊃¨+/¨5 5 ⍴⍳5
.⊃¨+/¨5 5⍴⍳5
^ ^
4 ⎕cr.⊃¨+/¨5 5 ⍴⍳5

Assertion failed: rho_rho > 0
in Function: get_last_shape_item
in file: Shape.hh:109

Call stack:

-- Stack trace at Shape.hh:109
0x7fa90e17bec5 __libc_start_main
0x443105 main
0x578fbd Workspace::immediate_execution(bool)
0x48d33a Command::process_line()
0x48d418 Command::do_APL_expression(UCS_string&)
0x4984bb Executable::execute_body() const
0x526950 StateIndicator::run()
0x4cd594 Prefix::reduce_statements()
0x4c80b5 Prefix::reduce_A_F_B_()
0x4a0d69 DerivedFunction::eval_AB(Value_P, Value_P)
0x464669 Bif_OPER1_EACH::eval_ALB(Value_P, Token&, Value_P)
0x46385a Bif_OPER1_EACH::finish_eval_ALB(EOC_arg&)
0x4a0c0d DerivedFunction::eval_AB(Value_P, Value_P)
0x46c53d Bif_OPER2_INNER::eval_ALRB(Value_P, Token&, Token&, Value_P)
0x46ba50 Bif_OPER2_INNER::inner_product(Value_P, Token&, Token&, Value_P)
0x46b483 Bif_OPER2_INNER::finish_inner_product(EOC_arg&, bool)
0x4542b2 do_Assert(char const*, char const*, char const*, int)

SI stack:

Depth: 1
Exec: 0x1e763b0
Safe ex: no
Pmode: ◊ 4 ⎕cr.⊃¨+/¨5 5 ⍴⍳5
Stat: 4 ⎕cr.⊃¨+/¨5 5 ⍴⍳5
err_code: 0x0
thrown: at StateIndicator.cc:39
e_msg_1: 'No Error'
e_msg_2: ''
e_msg_3: ''

Depth: 0
Exec: 0x1e75660
Safe ex: no
Pmode: ◊ .⊃¨+/¨5 5 ⍴⍳5
Stat: .⊃¨+/¨5 5 ⍴⍳5
err_code: 0x20002
thrown: at Prefix.cc:378
e_msg_1: 'SYNTAX ERROR'
e_msg_2: ' .⊃¨+/¨5 5⍴⍳5'
e_msg_3: ' ^ ^'


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