ac69ee418b
As part of the numeric trait reform (see issue #4819), I have added the following traits to `core::num` and implemented them for floating point types: ~~~rust pub trait Round { fn floor(&self) -> Self; fn ceil(&self) -> Self; fn round(&self) -> Self; fn trunc(&self) -> Self; fn fract(&self) -> Self; } pub trait Fractional: Num + Ord + Round + Quot<Self,Self> { fn recip(&self) -> Self; } pub trait Real: Signed + Fractional { // Common Constants fn pi() -> Self; fn two_pi() -> Self; fn frac_pi_2() -> Self; fn frac_pi_3() -> Self; fn frac_pi_4() -> Self; fn frac_pi_6() -> Self; fn frac_pi_8() -> Self; fn frac_1_pi() -> Self; fn frac_2_pi() -> Self; fn frac_2_sqrtpi() -> Self; fn sqrt2() -> Self; fn frac_1_sqrt2() -> Self; fn e() -> Self; fn log2_e() -> Self; fn log10_e() -> Self; fn log_2() -> Self; fn log_10() -> Self; // Exponential functions fn pow(&self, n: Self) -> Self; fn exp(&self) -> Self; fn exp2(&self) -> Self; fn expm1(&self) -> Self; fn ldexp(&self, n: int) -> Self; fn log(&self) -> Self; fn log2(&self) -> Self; fn log10(&self) -> Self; fn log_radix(&self) -> Self; fn ilog_radix(&self) -> int; fn sqrt(&self) -> Self; fn rsqrt(&self) -> Self; fn cbrt(&self) -> Self; // Angular conversions fn to_degrees(&self) -> Self; fn to_radians(&self) -> Self; // Triganomic functions fn hypot(&self, other: Self) -> Self; fn sin(&self) -> Self; fn cos(&self) -> Self; fn tan(&self) -> Self; // Inverse triganomic functions fn asin(&self) -> Self; fn acos(&self) -> Self; fn atan(&self) -> Self; fn atan2(&self, other: Self) -> Self; // Hyperbolic triganomic functions fn sinh(&self) -> Self; fn cosh(&self) -> Self; fn tanh(&self) -> Self; } /// Methods that are harder to implement and not commonly used. pub trait RealExt: Real { // Gamma functions fn lgamma(&self) -> (int, Self); fn tgamma(&self) -> Self; // Bessel functions fn j0(&self) -> Self; fn j1(&self) -> Self; fn jn(&self, n: int) -> Self; fn y0(&self) -> Self; fn y1(&self) -> Self; fn yn(&self, n: int) -> Self; } ~~~ The constants in `Real` could be [associated items](http://smallcultfollowing.com/babysteps/blog/2013/04/03/associated-items-continued/) in the future (see issue #5527). At the moment I have left the constants in `{float|f32|f64}::consts` in case folks need to access these at compile time. There are also instances of `int` in `Real` and `RealExt`. In the future these could be replaced with an associated `INTEGER` type on `Real`. `Natural` has also been renamed to `Integer`. This is because `Natural` normally means 'positive integer' in mathematics. It is therefore strange to implement it on signed integer types. `Integer` is probably a better choice. I have also switched some of the `Integer` methods to take borrowed pointers as arguments. This brings them in line with the `Quot` and `Rem` traits, and is be better for large Integer types like `BigInt` and `BigUint` because they don't need to be copied unnecessarily. There has also been considerable discussion on the mailing list and IRC about the renaming of the `Div` and `Modulo` traits to `Quot` and `Rem`. Depending on the outcome of these discussions they might be renamed again. |
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| doc | ||
| man | ||
| mk | ||
| src | ||
| .gitignore | ||
| .gitmodules | ||
| AUTHORS.txt | ||
| configure | ||
| CONTRIBUTING.md | ||
| COPYRIGHT | ||
| LICENSE-APACHE | ||
| LICENSE-MIT | ||
| Makefile.in | ||
| README.md | ||
| RELEASES.txt | ||
The Rust Programming Language
This is a compiler for Rust, including standard libraries, tools and documentation.
Installation
The Rust compiler currently must be built from a tarball, unless you are on Windows, in which case using the installer is recommended.
Since the Rust compiler is written in Rust, it must be built by a precompiled "snapshot" version of itself (made in an earlier state of development). As such, source builds require a connection to the Internet, to fetch snapshots, and an OS that can execute the available snapshot binaries.
Snapshot binaries are currently built and tested on several platforms:
- Windows (7, Server 2008 R2), x86 only
- Linux (various distributions), x86 and x86-64
- OSX 10.6 ("Snow Leopard") or greater, x86 and x86-64
You may find that other platforms work, but these are our "tier 1" supported build environments that are most likely to work.
Note: Windows users should read the detailed getting started notes on the wiki. Even when using the binary installer the Windows build requires a MinGW installation, the precise details of which are not discussed here.
To build from source you will also need the following prerequisite packages:
- g++ 4.4 or clang++ 3.x
- python 2.6 or later (but not 3.x)
- perl 5.0 or later
- gnu make 3.81 or later
- curl
Assuming you're on a relatively modern *nix system and have met the prerequisites, something along these lines should work.
$ curl -O http://static.rust-lang.org/dist/rust-0.6.tar.gz
$ tar -xzf rust-0.6.tar.gz
$ cd rust-0.6
$ ./configure
$ make && make install
You may need to use sudo make install if you do not normally have
permission to modify the destination directory. The install locations
can be adjusted by passing a --prefix argument to
configure. Various other options are also supported, pass --help
for more information on them.
When complete, make install will place several programs into
/usr/local/bin: rustc, the Rust compiler; rustdoc, the
API-documentation tool, and rustpkg, the Rust package manager and build system.
License
Rust is primarily distributed under the terms of both the MIT license and the Apache License (Version 2.0), with portions covered by various BSD-like licenses.
See LICENSE-APACHE, LICENSE-MIT, and COPYRIGHT for details.
More help
The tutorial is a good starting point.