Re: bug in simplify_shallow

On 2023-08-27 14:58, Bill Allombert wrote:
> [...]to be honest I did not remember that listput returned x and it is
> not explicitly documented

? ??listput
listput( list,x,{n}):

    Sets the n-th element of the list list (which must be of type 
t_LIST) equal to x. If n is omitted, or greater than the list length, 
appends x. The function returns the inserted element.

So "returns the inserted element".

-- -- -- --

Made me wonder what it returns when "replacing" a value, either the old 
or the new value.

? my( L= List(), v1= listput(~L,1), v2= listput(~L,2,1) ); [v1, v2, L]
% [1, 2, List([2])]

-- Ruud