Array: Pass by value... Possible?

[Rohit Malaviya]

Hi,
I was asked this question at a recent interview... it goes like this:


Suppose I want to manipulate an array inside a function (say, sort)...
but I do not want the changes to be reflected in the calling function.
How do I do it?

Now folks, do not tell me that I should copy the array to temp
array... using a 'for' loop... thats not the solution.

Can we somehow send the array (and not base address) such that only
values get transferred?

Thanks in Advance...

- Rohit

 

[Karl Heinz Buchegger]

Hi,
I was asked this question at a recent interview... it goes like this:

Suppose I want to manipulate an array inside a function (say, sort)...
but I do not want the changes to be reflected in the calling function.
How do I do it?

Now folks, do not tell me that I should copy the array to temp
array... using a 'for' loop... thats not the solution.

Can we somehow send the array (and not base address) such that only
values get transferred?

wrap the array in a struct
A struct gets copied when passed by value and so will the
array inside it.

 

[Neil Cerutti]

Hi,
I was asked this question at a recent interview... it goes like this:


Suppose I want to manipulate an array inside a function (say, sort)...
but I do not want the changes to be reflected in the calling function.
How do I do it?

Now folks, do not tell me that I should copy the array to temp
array... using a 'for' loop... thats not the solution.

Pass each element as parameters to a variadic function.

It's a little verbose. ;-)

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