Re: [RFC] Syntax for appending elements to arrays

[Egeyar Bagcioglu]

Hi Jose,

Both C++ and Rust vectors pushes at the end and pops from the end. If 
you think about the structure of such smart arrays, the end is the most 
cost effective place for pushing and popping. Other than these, both 
provide an additional "insert" method to insert an element with the 
specified index.

That being the case, especially due to C++, I suggest following the same 
tradition. If not the "insert", at least let's use "push" and "pop" 
keywords in a similar way.

C++ Vector Reference: http://www.cplusplus.com/reference/vector/vector/
Rust Vec Reference: https://doc.rust-lang.org/std/vec/struct.Vec.html

Best regards,
Ege


On 11/27/20 8:47 AM, Jose E. Marchesi wrote:
> Adding exceptions and fixing a typo:
>
> ([1,2,3]).push (4)
>
>    - Side-effect: [1,2,3] -> [4,1,2,3]
>    - Evals to [4,1,2,3]
>
> ([1,2,3]).pop
>
>    - Side-effect: [1,2,3] -> [2,3]
>    - Evals to 1.
>    - Throws E_out_of_bounds if array is empty.
>
> ([1,2,3]).put (4)
>
>    - Side-effect: [1,2,3] -> [1,2,3,4]
>    - Evals to [1,2,3,4]
>
> ([1,2,3]).pull
>
>    - Side-effect: [1,2,3] -> [1,2]
>    - Evals to 3
>    - Throws E_out_of_bounds if array is empty.