[julia-users] Nettle basic usage example gives pointer(ASCIIString,) error

[jwmillerusa]

Hi, I get the following error when running the hashing functionality 
example for Nettle:

julia> using Nettle
> julia> h = HashState(SHA256)
> SHA256 Hash state
> julia> update!(h, "this is a test")
> ERROR: no method pointer(ASCIIString,)
>  in update! at C:\Users\jeff\.julia\Nettle\src\hash.jl:74
> WARNING: backtraces on your platform are often misleading or partially 
> incorrect


The issue seems to be with the update! function:

    @eval function update!(state::HashState{$name},data)
>       
> ccall($fptr_update,Void,(Ptr{Void},Csize_t,Ptr{Uint8}),state.ctx,sizeof(data),pointer(data))
>     end


If I replace pointer(data) by just data, it seems to work (but I'm not sure 
if this is a good idea or not!):

julia> using Nettle
> julia> h = HashState(SHA256)
> SHA256 Hash state
> julia> update!(h, "this is a test")
> julia> hexdigest!(h)
> "2e99758548972a8e8822ad47fa1017ff72f06f3ff6a016851f45c398732bc50c"


Is this a bug or am I doing something wrong?

I'm using Julia version 0.2.1 on 64-bit Windows 7. Thanks.    
    
Jeff