4. I had troubles with this myself and I wonder if we loose anything if we
always have to define the types in a type definition. If one then uses Any
one will have to know what one is doing. The confusing thing is that in
function definition it is no proplem to omit the types.
Am Montag, 13. Januar 2014 03:39:35 UTC+1 schrieb Andy M:
>
> I've been following and experimenting with Julia for a little while now,
> and I have encountered questions that I haven't managed to answer by
> reading or googling. An answer to any of them would be greatly appreciated.
>
> 1. Is there any way to retrieve the location of the definition of a
> variable or a type? I know I can use @which to find method definitions, but
> that's all I know how to find.
>
> 2. Are tuples are less memory efficient than immutable composite types? If
> so, why is this? I got the impression that they are after reading various
> different articles and comments, so maybe I have just misunderstood
> something.
>
> 3. Why is Julia's memory usage so high? When I open the interpreter (in
> linux) it stabilises around 90MB. If I call Pkg.installed(), it jumps to
> 165MB, and stays there. Calling gc() doesn't reduce it either. Is it an
> inevitable consequence of the language's design? Or perhaps an issue that
> is being worked on? Or is it just not that important to the language's
> target users?
>
> 4. The documentation suggests that "type Blah; a; end" is less efficient
> than "type Blah{A}; a::A; end". If so, why does the former not default to
> the behaviour of the latter? Is it to avoid excess code generation? Or
> perhaps the latter representation has some undesirable behaviour?
>
> 5. Is it currently possible to pass a struct to a C function? I found
> documentation saying that it isn't possible, but there are github issues
> which suggest the problem has been worked on.
>
> 6. Is there a way to document a function, method, type, variable or
> module, such that the documentation can be retrieved in the interpreter? I
> mean something like javadocs or python docstrings. If not, is something
> like this going to be added?
>
> Sorry for asking so many questions all at once. I am considering starting
> quite a big project in Julia, and I think my timezone has made it difficult
> to find help in the IRC channel.
>
