1 // Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 //! # The Rust Standard Library
13 //! The Rust Standard Library provides the essential runtime
14 //! functionality for building portable Rust software.
15 //! It is linked to all Rust crates by default.
17 //! ## Intrinsic types and operations
19 //! The [`ptr`](ptr/index.html) and [`mem`](mem/index.html)
20 //! modules deal with unsafe pointers and memory manipulation.
21 //! [`marker`](marker/index.html) defines the special built-in traits,
22 //! and [`raw`](raw/index.html) the runtime representation of Rust types.
23 //! These are some of the lowest-level building blocks in Rust.
25 //! ## Math on primitive types and math traits
27 //! Although basic operations on primitive types are implemented
28 //! directly by the compiler, the standard library additionally
29 //! defines many common operations through traits defined in
30 //! mod [`num`](num/index.html).
32 //! ## Pervasive types
34 //! The [`option`](option/index.html) and [`result`](result/index.html)
35 //! modules define optional and error-handling types, `Option` and `Result`.
36 //! [`iter`](iter/index.html) defines Rust's iterator protocol
37 //! along with a wide variety of iterators.
38 //! [`Cell` and `RefCell`](cell/index.html) are for creating types that
39 //! manage their own mutability.
41 //! ## Vectors, slices and strings
43 //! The common container type, `Vec`, a growable vector backed by an
44 //! array, lives in the [`vec`](vec/index.html) module. References to
45 //! arrays, `&[T]`, more commonly called "slices", are built-in types
46 //! for which the [`slice`](slice/index.html) module defines many
49 //! `&str`, a UTF-8 string, is a built-in type, and the standard library
50 //! defines methods for it on a variety of traits in the
51 //! [`str`](str/index.html) module. Rust strings are immutable;
52 //! use the `String` type defined in [`string`](string/index.html)
53 //! for a mutable string builder.
55 //! For converting to strings use the [`format!`](fmt/index.html)
56 //! macro, and for converting from strings use the
57 //! [`FromStr`](str/trait.FromStr.html) trait.
59 //! ## Platform abstractions
61 //! Besides basic data types, the standard library is largely concerned
62 //! with abstracting over differences in common platforms, most notably
63 //! Windows and Unix derivatives. The [`os`](os/index.html) module
64 //! provides a number of basic functions for interacting with the
65 //! operating environment, including program arguments, environment
66 //! variables, and directory navigation. The [`path`](path/index.html)
67 //! module encapsulates the platform-specific rules for dealing
70 //! `std` also includes modules for interoperating with the
71 //! C language: [`c_str`](c_str/index.html) and
72 //! [`c_vec`](c_vec/index.html).
74 //! ## Concurrency, I/O, and the runtime
76 //! The [`thread`](thread/index.html) module contains Rust's threading abstractions,
77 //! while [`comm`](comm/index.html) contains the channel types for message
78 //! passing. [`sync`](sync/index.html) contains further, primitive, shared
79 //! memory types, including [`atomic`](sync/atomic/index.html).
81 //! Common types of I/O, including files, TCP, UDP, pipes, Unix domain sockets,
82 //! timers, and process spawning, are defined in the
83 //! [`old_io`](old_io/index.html) module.
85 //! Rust's I/O and concurrency depends on a small runtime interface
86 //! that lives, along with its support code, in mod [`rt`](rt/index.html).
87 //! While a notable part of the standard library's architecture, this
88 //! module is not intended for public use.
90 //! ## The Rust prelude and macros
92 //! Finally, the [`prelude`](prelude/index.html) defines a
93 //! common set of traits, types, and functions that are made available
94 //! to all code by default. [`macros`](macros/index.html) contains
95 //! all the standard macros, such as `assert!`, `panic!`, `println!`,
96 //! and `format!`, also available to all Rust code.
98 #![crate_name = "std"]
99 #![stable(feature = "rust1", since = "1.0.0")]
101 #![crate_type = "rlib"]
102 #![crate_type = "dylib"]
103 #![doc(html_logo_url = "http://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png",
104 html_favicon_url = "http://www.rust-lang.org/favicon.ico",
105 html_root_url = "http://doc.rust-lang.org/nightly/",
106 html_playground_url = "http://play.rust-lang.org/")]
109 #![feature(box_syntax)]
110 #![feature(collections)]
113 #![feature(int_uint)]
114 #![feature(lang_items, unsafe_destructor)]
116 #![feature(linkage, thread_local, asm)]
117 #![feature(old_impl_check)]
118 #![feature(optin_builtin_traits)]
120 #![feature(staged_api)]
121 #![feature(unboxed_closures)]
123 #![feature(macro_reexport)]
124 #![cfg_attr(test, feature(test))]
126 // Don't link to std. We are std.
129 #![deny(missing_docs)]
136 #[macro_reexport(assert, assert_eq, debug_assert, debug_assert_eq,
137 unreachable, unimplemented, write, writeln)]
141 #[macro_reexport(vec)]
142 extern crate "collections" as core_collections;
144 extern crate "rand" as core_rand;
146 extern crate unicode;
149 #[macro_use] #[no_link] extern crate rustc_bitflags;
151 // Make std testable by not duplicating lang items. See #2912
152 #[cfg(test)] extern crate "std" as realstd;
153 #[cfg(test)] pub use realstd::marker;
154 #[cfg(test)] pub use realstd::ops;
155 #[cfg(test)] pub use realstd::cmp;
156 #[cfg(test)] pub use realstd::boxed;
159 // NB: These reexports are in the order they should be listed in rustdoc
162 pub use core::borrow;
165 #[cfg(not(test))] pub use core::cmp;
166 pub use core::default;
167 pub use core::finally;
169 pub use core::intrinsics;
171 #[cfg(not(test))] pub use core::marker;
173 #[cfg(not(test))] pub use core::ops;
177 pub use core::result;
178 pub use core::option;
181 #[cfg(not(test))] pub use alloc::boxed;
184 pub use core_collections::slice;
185 pub use core_collections::str;
186 pub use core_collections::string;
187 #[stable(feature = "rust1", since = "1.0.0")]
188 pub use core_collections::vec;
190 pub use unicode::char;
192 /* Exported macros */
204 /* Primitive types */
206 #[path = "num/float_macros.rs"]
210 #[path = "num/int_macros.rs"]
214 #[path = "num/uint_macros.rs"]
218 #[path = "num/int.rs"] pub mod int;
219 #[path = "num/isize.rs"] pub mod isize;
220 #[path = "num/i8.rs"] pub mod i8;
221 #[path = "num/i16.rs"] pub mod i16;
222 #[path = "num/i32.rs"] pub mod i32;
223 #[path = "num/i64.rs"] pub mod i64;
225 #[path = "num/uint.rs"] pub mod uint;
226 #[path = "num/usize.rs"] pub mod usize;
227 #[path = "num/u8.rs"] pub mod u8;
228 #[path = "num/u16.rs"] pub mod u16;
229 #[path = "num/u32.rs"] pub mod u32;
230 #[path = "num/u64.rs"] pub mod u64;
232 #[path = "num/f32.rs"] pub mod f32;
233 #[path = "num/f64.rs"] pub mod f64;
242 /* Runtime and platform support */
245 pub mod thread_local;
257 /* Common data structures */
261 /* Threads and communication */
267 #[path = "sys/unix/mod.rs"] mod sys;
269 #[path = "sys/windows/mod.rs"] mod sys;
271 #[path = "sys/common/mod.rs"] mod sys_common;
276 // Documentation for primitive types
282 // A curious inner-module that's not exported that contains the binding
283 // 'std' so that macro-expanded references to std::error and such
284 // can be resolved within libstd.
287 // mods used for deriving
293 pub use sync; // used for select!()
294 pub use error; // used for try!()
295 pub use fmt; // used for any formatting strings
296 pub use old_io; // used for println!()
297 pub use option; // used for bitflags!{}
298 pub use rt; // used for panic!()
299 pub use vec; // used for vec![]
300 pub use cell; // used for tls!
301 pub use thread_local; // used for thread_local!
302 pub use marker; // used for tls!
303 pub use ops; // used for bitflags!
305 // The test runner calls ::std::os::args() but really wants realstd
306 #[cfg(test)] pub use realstd::os as os;
307 // The test runner requires std::slice::Vector, so re-export std::slice just for it.
309 // It is also used in vec![]
312 pub use boxed; // used for vec![]