list functions sugestion

[hpfx]

thank you konamz,
In the mean time, I got found for SIZE (I edited my post)
but you helped me for other.
Indeed, most did already exist, that's nice!

(09-20-2015 08:41 PM)komame Wrote:  FOREACH? => there is the ITERATE function, but not for all purposes.

ITERATE is related to an expression.
I would like to suggest a FOREACH function, not to extend existing ITERATE.
in case you don't know foreach (like in php for example), it's nothing related to hp prime interate.
First, it's a block function (like a while), it goes throu each item on that way :

Code:

FOREACH {1, 2, 3 } AS var;
// do something with var 
END;

we can also imagine FOREACH would access by reference to the item, that mean, modifying var would change the list itself !
example

Code:

L1:={4, 6, 9, 3};
FOREACH L1 AS it;
if(it MOD 2 == 0) it=it-1;
END;
// now L1 is { 3, 5, 9, 3 }