22-Mar-2013 15:56, Jacob Carlborg пишет:
On 2013-03-22 10:07, Dmitry Olshansky wrote:

What's wrong with returning slice by value ?

I want to know both if it exists and get back the value. I could use an
out parameter for that though.


Yes, that or ref parameter.

Another option is:

return null - doesn't exists (both ptr and .length are zeros)

return a slice that has zero length and non-zero ptr - exists but empty

Dunno if it's suitable to what your doing with it later on.

--
Dmitry Olshansky

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