"free" function for simple array.

[MysticVegeta]

i am aware of the "free" function used to "free"/"empty" a flexible array, i was wondering if we could do the same with regular array.

[beard0]

MysticVegeta wrote:

i am aware of the "free" function used to "free"/"empty" a flexible array, i was wondering if we could do the same with regular array.

Why not just try, and see if it works?

[MysticVegeta]

I did:

Quote:

Array grid is not flexible and hence cannot be 'free'ed

[beard0]

Then why did you ask?

I could understand "Why can't..."
In which case the answer would be because free varName is a shorthand for

code:

new varName, 0

which only works with flexible arrays, as they are the only ones whose size is flexible.

[do_pete]

If you want to make all the things in a variable equal 0 you can use xomething like this:

code:

var variableName : array 1 .. 5, 1 .. 5 of int for x : 1 .. 5     for y : 1 .. 5         variableName (x, y) := 0     end for end for

[MysticVegeta]

No, I want them equal to nothing, nothing so that grid(x, y) returns an error of "No value for variable". Just like we can do in flexible arrays. I thought it could be done, guess i was wrong.

[do_pete]

when you declare you array then there will be no value for variable

[Tony]

turing doesn't appear to allow you to drop a non-dynamically allocated variable.

The best way would be to include the array in a type, and use a pointer to that type. You could free a pointer afterwards.

Or if you're feeling adventurous, try the following out

Turing:

var arr : array 1 .. 2 of int := init (1, 2) var test : array 1 .. 2 of int var buffer : array 1 .. (256 div 4) of int %reserve memory for our tricks put "array : ", arr (1), " ", arr (2) var address : addressint := addr (arr) put "located at: ", address test (1) := int@(address) test (2) := int@(address + sizeof (int)) put "test array: ", test (1), " ", test (2) string@(address) := "Tony was here" put "the original array has became: ", arr (1), " ", arr (2) put "a copy has remain in test: ", test (1), " ", test (2), " located at: ", addr (test) put "since the difference between arr and test is: ", addr (test) - addr (arr) put "which is less than size of the string put in place: ", sizeof (string) put "this explains why test array was overwriten as well"

[beard0]

Tony wrote:

Or if you're feeling adventurous, try the following out

Fun, I hadn't really had the chance to try this out before. I'll have to play with this.

[MysticVegeta]

do_pete wrote:

when you declare you array then there will be no value for variable

I meant after changing its value.