You can do something like
function f{T<:Real}(x::Array{T,1})
@assert isleaftype(T)
# function implementation
end
kl. 15:16:40 UTC+2 onsdag 30. april 2014 skrev Oliver Woodford følgende:
>
> On Wednesday, April 30, 2014 2:09:45 PM UTC+1, Patrick O'Leary wrote:
>>
>> On Wednesday, April 30, 2014 7:52:16 AM UTC-5, Oliver Woodford wrote:
>>>
>>> Is that correct? If not, what really is the correct way to constrain
>>> input arrays to be homogenous?
>>>
>>
>> The tendency in Julia is to embrace that it's a dynamic language, and not
>> excessively type constrain inputs. While I don't think there's a way to do
>> exactly what you want, why do you want to do it?
>>
>>
> When my function will be a lot slower if you pass in a heterogeneous
> array, and I want to avoid programmers accidentally and obliviously doing
> that. Now, I could convert heterogeneous arrays to homogeneous ones within
> the function, but the Julia style
> guide<http://julia.readthedocs.org/en/latest/manual/style-guide/#handle-excess-argument-diversity-in-the-caller>very
> sensibly counsels against that.
>
