Commit Graph

20 Commits

Author SHA1 Message Date
Eduard Burtescu
20b4e159ed Implement automatic overloaded dereference.
Closes #7141.
2014-03-13 14:21:45 +02:00
Huon Wilson
198caa87cd Update users for the std::rand -> librand move. 2014-03-12 11:31:43 +11:00
Palmer Cox
6d9bdf975a Rename all variables that have uppercase characters in their names to use only lowercase characters 2014-03-04 21:23:36 -05:00
TorstenWeber
47cff94ab9 Implemented checked arithmetic for Big(U)Ints 2014-03-03 19:20:21 +01:00
Alex Crichton
02882fbd7e std: Change assert_eq!() to use {} instead of {:?}
Formatting via reflection has been a little questionable for some time now, and
it's a little unfortunate that one of the standard macros will silently use
reflection when you weren't expecting it. This adds small bits of code bloat to
libraries, as well as not always being necessary. In light of this information,
this commit switches assert_eq!() to using {} in the error message instead of
{:?}.

In updating existing code, there were a few error cases that I encountered:

* It's impossible to define Show for [T, ..N]. I think DST will alleviate this
  because we can define Show for [T].
* A few types here and there just needed a #[deriving(Show)]
* Type parameters needed a Show bound, I often moved this to `assert!(a == b)`
* `Path` doesn't implement `Show`, so assert_eq!() cannot be used on two paths.
  I don't think this is much of a regression though because {:?} on paths looks
  awful (it's a byte array).

Concretely speaking, this shaved 10K off a 656K binary. Not a lot, but sometime
significant for smaller binaries.
2014-02-28 23:01:54 -08:00
Brendan Zabarauskas
dad52cfcb5 Remove std::num::ToStrRadix from the prelude 2014-02-24 21:22:26 -08:00
Brendan Zabarauskas
84a8893f19 Remove std::from_str::FromStr from the prelude 2014-02-24 21:22:26 -08:00
Alex Crichton
6485917d7c Move extra::json to libserialize
This also inverts the dependency between libserialize and libcollections.

cc #8784
2014-02-24 09:51:39 -08:00
Alex Crichton
b78b749810 Remove all ToStr impls, add Show impls
This commit changes the ToStr trait to:

    impl<T: fmt::Show> ToStr for T {
        fn to_str(&self) -> ~str { format!("{}", *self) }
    }

The ToStr trait has been on the chopping block for quite awhile now, and this is
the final nail in its coffin. The trait and the corresponding method are not
being removed as part of this commit, but rather any implementations of the
`ToStr` trait are being forbidden because of the generic impl. The new way to
get the `to_str()` method to work is to implement `fmt::Show`.

Formatting into a `&mut Writer` (as `format!` does) is much more efficient than
`ToStr` when building up large strings. The `ToStr` trait forces many
intermediate allocations to be made while the `fmt::Show` trait allows
incremental buildup in the same heap allocated buffer. Additionally, the
`fmt::Show` trait is much more extensible in terms of interoperation with other
`Writer` instances and in more situations. By design the `ToStr` trait requires
at least one allocation whereas the `fmt::Show` trait does not require any
allocations.

Closes #8242
Closes #9806
2014-02-23 20:51:56 -08:00
Brendan Zabarauskas
3a9eca3a7b Move std::num::Integer to libnum 2014-02-22 01:45:29 +11:00
bors
25ba057fad auto merge of #12343 : liigo/rust/move-extra-test-to-libtest, r=alexcrichton
I don't think `extra` is a good/meaningful name for a library. `libextra` should disappear, and we move all of its sub modules out of it. This PR is just one of that steps: move `extra::test` to `libtest`.

I didn't add `libtest` to doc index, because it's an internal library currently.

**Update:**

All comments addressed. All tests passed. Rebased and squashed.
2014-02-20 01:51:56 -08:00
Liigo Zhuang
53b9d1a324 move extra::test to libtest 2014-02-20 16:03:58 +08:00
bors
b5e35736b0 auto merge of #12392 : aepsil0n/rust/fix/pub_randbigint, r=huonw
Closes #12383.

Test suite did not capture this and can't as long as it is in the same module hierarchy. This is probably something that should be addressed in the future.
2014-02-19 23:21:50 -08:00
Patrick Walton
33923f47e3 librustc: Remove unique vector patterns from the language.
Preparatory work for removing unique vectors from the language, which is
itself preparatory work for dynamically sized types.
2014-02-19 16:35:31 -08:00
Eduard Bopp
cb3a419d97 libnum: Make RandBigInt trait public
Closes #12383.
2014-02-19 14:01:50 +01:00
Brendan Zabarauskas
876eb931dc Remove Real trait and move methods into Float
This is part of the effort to simplify `std::num`, as tracked in issue #10387.
2014-02-17 02:23:33 +11:00
Alex Crichton
a41b0c2529 extern mod => extern crate
This was previously implemented, and it just needed a snapshot to go through
2014-02-14 22:55:21 -08:00
Michael Darakananda
bf1464c413 Removed num::Orderable 2014-02-13 20:12:59 -05:00
Felix S. Klock II
7dc187afd8 Remove a source of O(n^2) running time in bigints.
::num::bigint, Remove a source of O(n^2) running time in `fn shr_bits`.

I'll cut to the chase: On my laptop, this brings the running time on
`pidigits 2000` (from src/test/bench/shootout-pidigits.rs) from this:
```
% time ./pidigits 2000 > /dev/null

real	0m7.695s
user	0m7.690s
sys	0m0.005s
```
to this:
```
% time ./pidigits 2000 > /dev/null

real	0m0.322s
user	0m0.318s
sys	0m0.004s
```

The previous code was building up a vector by repeatedly making a
fresh copy for each element that was unshifted onto the front,
yielding quadratic running time.  This fixes that by building up the
vector in reverse order (pushing elements onto the end) and then
reversing it.

(Another option would be to build up a zero-initialized vector of the
desired length and then installing all of the shifted result elements
into their target index, but this was easier to hack up quickly, and
yields the desired asymptotic improvement.  I have been thinking of
adding a `vec::from_fn_rev` to handle this case, maybe I will try that
this weekend.)
2014-02-13 12:50:25 -08:00
Felix S. Klock II
d2d1129ad0 Factoring bigint, rational, and complex out of libextra into libnum.
Removed use of globs present in earlier versions of modules.

Fix tutorial.md to reflect `extra::rational` ==> `num::rational`.
2014-02-11 10:39:15 +01:00