1 // Copyright 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 Core Library
13 //! The Rust Core Library is the dependency-free foundation of [The
14 //! Rust Standard Library](../std/index.html). It is the portable glue
15 //! between the language and its libraries, defining the intrinsic and
16 //! primitive building blocks of all Rust code. It links to no
17 //! upstream libraries, no system libraries, and no libc.
19 //! The core library is *minimal*: it isn't even aware of heap allocation,
20 //! nor does it provide concurrency or I/O. These things require
21 //! platform integration, and this library is platform-agnostic.
23 //! *It is not recommended to use the core library*. The stable
24 //! functionality of libcore is reexported from the
25 //! [standard library](../std/index.html). The composition of this library is
26 //! subject to change over time; only the interface exposed through libstd is
27 //! intended to be stable.
29 //! # How to use the core library
31 // FIXME: Fill me in with more detail when the interface settles
32 //! This library is built on the assumption of a few existing symbols:
34 //! * `memcpy`, `memcmp`, `memset` - These are core memory routines which are
35 //! often generated by LLVM. Additionally, this library can make explicit
36 //! calls to these functions. Their signatures are the same as found in C.
37 //! These functions are often provided by the system libc, but can also be
38 //! provided by the [rlibc crate](https://crates.io/crates/rlibc).
40 //! * `rust_begin_unwind` - This function takes three arguments, a
41 //! `fmt::Arguments`, a `&str`, and a `u32`. These three arguments dictate
42 //! the panic message, the file at which panic was invoked, and the line.
43 //! It is up to consumers of this core library to define this panic
44 //! function; it is only required to never return.
46 // Since libcore defines many fundamental lang items, all tests live in a
47 // separate crate, libcoretest, to avoid bizarre issues.
49 // Do not remove on snapshot creation. Needed for bootstrap. (Issue #22364)
50 #![cfg_attr(stage0, feature(custom_attribute))]
51 #![crate_name = "core"]
52 #![unstable(feature = "core",
53 reason = "the libcore library has not yet been scrutinized for \
54 stabilization in terms of structure and naming")]
56 #![crate_type = "rlib"]
57 #![doc(html_logo_url = "http://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png",
58 html_favicon_url = "https://doc.rust-lang.org/favicon.ico",
59 html_root_url = "http://doc.rust-lang.org/nightly/",
60 html_playground_url = "http://play.rust-lang.org/")]
61 #![doc(test(no_crate_inject))]
65 #![allow(raw_pointer_derive)]
66 #![deny(missing_docs)]
68 #![feature(intrinsics)]
69 #![feature(lang_items)]
70 #![feature(on_unimplemented)]
72 #![feature(staged_api)]
73 #![feature(unboxed_closures)]
74 #![feature(rustc_attrs)]
75 #![feature(optin_builtin_traits)]
76 #![feature(fundamental)]
77 #![feature(concat_idents)]
79 #![feature(custom_attribute)]
81 #![feature(allow_internal_unstable)]
89 #[path = "num/float_macros.rs"]
93 #[path = "num/int_macros.rs"]
97 #[path = "num/uint_macros.rs"]
101 #[path = "num/isize.rs"] pub mod isize;
102 #[path = "num/i8.rs"] pub mod i8;
103 #[path = "num/i16.rs"] pub mod i16;
104 #[path = "num/i32.rs"] pub mod i32;
105 #[path = "num/i64.rs"] pub mod i64;
107 #[path = "num/usize.rs"] pub mod usize;
108 #[path = "num/u8.rs"] pub mod u8;
109 #[path = "num/u16.rs"] pub mod u16;
110 #[path = "num/u32.rs"] pub mod u32;
111 #[path = "num/u64.rs"] pub mod u64;
113 #[path = "num/f32.rs"] pub mod f32;
114 #[path = "num/f64.rs"] pub mod f64;
119 /* The libcore prelude, not as all-encompassing as the libstd prelude */
123 /* Core modules for ownership management */
130 /* Core language traits */
139 /* Core types and methods on primitives */
157 #[doc(primitive = "bool")]
161 // note: does not need to be public