On Aug 7, 10 07:52, bearophile wrote:
Philippe Sigaud:
It's better to give it a default chunk size of 2.
Why?
I'm using partition() for years in various languages, and I've seen that the
chunks of size 2 are the most common.
And what should the default step be, according to you? If chose n (the chunk
size), because that's want the OP wanted.
No duplication across chunks, so on default it can split the natural numbers as:
[1, 2], [3, 4], [5, 6], etc.
Yeah, partition, chunk, segment, it a basic thing, worth including in
std.range.
The most common name is partition().
In D, 'partition' is already used for rearranging (splitting) a range
into two according to a predicate*. (It's the same in C++, Haskell and
Ruby.) Since the name is already taken, it's very bad to break the
compatibility to change what the function does even if the name were
more common.
Also, in Python this function called grouper() (in itertool's
"Recipes"), and in Ruby it's called each_slice. I've never seen it
called Partition[] besides Mathematica.
*: http://www.digitalmars.com/d/2.0/phobos/std_algorithm.html#partition
Bye,
bearophile
