Re: [Bug-apl] Segfault in rank with empty argument

[Juergen Sauermann]

Hi Kacper,

thanks, fixed in SVN 414.

/// Jürgen


On 08/03/2014 06:49 AM, Kacper Gutowski wrote:
> Using rank operator with empty argument of derived function, results in
> either assertion failure (for positive right operand) or segmentation
> fault (for non-positive right operand).  It works correctly (resulting
> in an error) when axis syntax is used instead of standard-mandated
> numeric right operand.
>
>
>        ⊢⍤0⍬
>
>
> ====================================================
> SEGMENTATION FAULT
>
> ----------------------------------------
> -- Stack trace at main.cc:140
> ----------------------------------------
> 0x7f54435b4b45 __libc_start_main
> 0x43ad65  main
> 0x54eab5   Workspace::immediate_execution(bool)
> 0x47a3d5    Command::process_line()
> 0x473ca8     Command::do_APL_expression(UCS_string&)
> 0x484988      Executable::execute_body() const
> 0x4fed80       StateIndicator::run()
> 0x4afbd4        Prefix::reduce_statements()
> 0x4aefbd         Prefix::reduce_MISC_F_B_()
> 0x48ddc3          DerivedFunction::eval_B(Value_P)
> 0x462e44           Bif_OPER2_RANK::eval_LRB(Token&, Token&, Value_P)
> 0x45ffff            Bif_OPER2_RANK::do_LyXB(Function*, Shape const*, Value_P, 
> int)
> 0x45f4f0             Bif_OPER2_RANK::finish_LyXB(EOC_arg&)
> 0x46d881              Cell::init(Cell const&)
> 0x7f54452d88d0
> 0x497d07
> ========================================
> ====================================================
>
>
>
>
>        ⊢⍤1⍬
>
> ==============================================================================
> Assertion failed: 0
> in Function:      init
> in file:          Cell.cc:48
>
> Call stack:
>
> ----------------------------------------
> -- Stack trace at Cell.cc:48
> ----------------------------------------
> 0x7f1490cb6b45 __libc_start_main
> 0x43ad65  main
> 0x54eab5   Workspace::immediate_execution(bool)
> 0x47a3d5    Command::process_line()
> 0x473ca8     Command::do_APL_expression(UCS_string&)
> 0x484988      Executable::execute_body() const
> 0x4fed80       StateIndicator::run()
> 0x4afbd4        Prefix::reduce_statements()
> 0x4aefbd         Prefix::reduce_MISC_F_B_()
> 0x48ddc3          DerivedFunction::eval_B(Value_P)
> 0x462e44           Bif_OPER2_RANK::eval_LRB(Token&, Token&, Value_P)
> 0x45ffff            Bif_OPER2_RANK::do_LyXB(Function*, Shape const*, Value_P, 
> int)
> 0x45f3cf             Bif_OPER2_RANK::finish_LyXB(EOC_arg&)
> 0x4c59ab              Bif_F2_RIGHT::eval_B(Value_P)
> 0x54c45d               Value::clone(char const*) const
> 0x46d7d0                Cell::init(Cell const&)
> 0x449302                 do_Assert(char const*, char const*, char const*, int)
> ========================================
>
> SI stack:
>
> Depth:    0
> Exec:     0x2752c00
> Safe ex:  no
> Pmode:    ◊  ⊢⍤1⍬
> PC:       5 RETURN_STATS
> Stat:     ⊢⍤1⍬
> err_code: 0x0
> thrown:   at StateIndicator.cc:41
> e_msg_1:  'No Error'
> e_msg_2:  ''
> e_msg_3:  ''
>
>
> ==============================================================================
>
>
>
>
> -k