Re: avoiding copying arguments by value when calling a function

[Michael Goffioul]

On Mon, Aug 20, 2012 at 2:55 PM, Sergei Steshenko <address@hidden> wrote:

Hello,

if I understand correctly, if I write a function like this:

function result = foo(bar)
  # function body goes here
endfunction

and if I call the function this way

result = foo(bar);

, the 'bar' argument is copied by value each time 'foo' is called.

To be exact, I think it's only copied if you try to modify the 'bar' argument. If you don't modify it, no copy is made, only an internal reference counter is incremented.

Michael.