empty_list | iOS | Awesome List library

Your desired function is ill-typed and cannot exist in a language with parametric polymorphism like OCaml: 'a stream -> 'b stream where 'b is not a stream is not a valid type.

Parametric polymorphism requires that polymorphic functions does not change their behavior in function of the type of their argument. This useful both in term of semantics, types can be erased once type checking is done, and for type theoretical reason: proofs (aka the program) cannot inspect the theorem (aka the type) that they are trying to prove.

If you want to flatten multiple times a nested streams they are two options:

• if the nested level is known statically, you can use flatten multiple times. Note that it is straightforward to flatten a number of time exponential with the size of the code

It seems that declaring an array type as nb.int64[:] doesn't provide enough information to create the class unless you create an instance (the default value for haha) that Numba can use to infer the type.

Instead, you can declare:

If you refer to a field in an embedded array, it should give you the entire array of those values.

The aggregation should only need 1 stage:

Just some side note, pure back-tracking for a sudoku problem will lead to an enormous time of execution in general.

Your problem is that you never reset a when finding a good solution. A solution might be to add a=1 at the end of the else of the while loop. Additionally, you use history.remove(history[n]) which delete the first item of history that is equal to history[n], leading to some error. You should replace it by del. Here is the corrected loop :

To create an empty list of dataframes you could use the replicate and data.frame arguments. I have produced a reprex of this below.

Generally, you want to parse a String (ATOM) as a single token rather than a bunch of individual tokens that are all brought together in a parser Rule:

a Lexer rule:

It's because you haven't deleted the items in the list. Also, you might have to map value to string if a non-string is appended in the empty-list

your del_selected should be something like this:

Thanks to @areus

I just used @Local interface instead of @Remote

Unfortunately you cannot use an attribute name as an operand to list_append(...) unless that attribute is itself a list. The best you can do I believe would be to store myobject in the proper type up front, and then update it as expected.

Since storage is cheap & network/compute are expensive here, you could even duplicate the data to have one of them in the right form.

Here's a full example, where createTable() and deleteTable() do exactly what you think: