Arrays?

[charliereddog 9]

How is it that you can minus one array from another, but not check whether that array is in the other one?

[sickboy 13]

No idea.

But this works:

_var = (str(ar1) == str(ar2));

_var will be true if the arrays match and untrue if the arrays don't match.

(erhm I must admit im unsure if str(xx) works... you might need to test: (format["%1",ar1] == format["%1",ar2]) instead)

[charliereddog 9]

Thanks. That's actually not going to help my problem one bit, but it's useful to file away for the day it will help.

My issue is

Arr1=[cp1,cp2,cp3,ar1,ar2]

Arr2=[ar3,ar4,ar2,ar1,cp1,cp2,cp3]

Arr1 in Arr2 doesn't work. Bizarely though

Arr2-Arr1 returns [ar3,ar4]. Surely if it can do that, it should be able to work out whether the entries are in the array!

[sickboy 13]

so create a function, t_arrayCompare.sqf:

<table border="0" align="center" width="95%" cellpadding="0" cellspacing="0"><tr><td>Code Sample </td></tr><tr><td id="CODE">private ["_ar1", "_ar2", "_ok", "_bad"];

_ar1 = [] + (_this select 0);

_ar2 = [] + (_this select 1);

_ok = true; _bad = [];

{

  if (!(_x in _ar2)) then

  {

     _ok = false;

     _bad = _bad + [_x];

  };

} forEach _ar1;

[_ok,_bad]

preCompile it with: <table border="0" align="center" width="95%" cellpadding="0" cellspacing="0"><tr><td>Code Sample </td></tr><tr><td id="CODE">

t_arrayCompare = compile preProcessFile "t_arrayCompare.sqf";

And use the function e.g as:

_compare = [ [cp1,cp2,cp3,ar1,ar2], [ar3,ar4,ar2,ar1,cp1,cp2,cp3] ] call t_arrayCompare;

_compare variable now contains an array:

[ ARRAYMATCH?, UNMATCHEDITEMS]

Arraymatch will be true if array2 contained all items from array1

Unmatcheditems contains an array with items in _ar1 but not found in _ar2.

You can expand/tweak the function as needed of course, add another loop to turn the test around and capture the differencing objects from both arrays.

Quote[/b] ]Arr1 in Arr2 doesn't work. Bizarely though

Arr2-Arr1 returns [ar3,ar4]. Surely if it can do that, it should be able to work out whether the entries are in the array!  

so add another check on the output (_result in example): <table border="0" align="center" width="95%" cellpadding="0" cellspacing="0"><tr><td>Code Sample </td></tr><tr><td id="CODE">if (count _result==0) then

{

 // array2 contained all items from array1

} else {

 // array2 did not contain all items from array1

};

[loyalguard 15]

I am not sure of this will help as I only have the most basic of array-related knowledge but it might be something to consider

SPON_deepEquals at ofpec.com

Quote[/b] ]Description:

 Compares any two values, including nil, null, arrays or nested arrays, for equality.

[sickboy 13]

SPON_deepEquals at ofpec.com

Quote[/b] ]Description:

 Compares any two values, including nil, null, arrays or nested arrays, for equality.

Good point you have there aswell