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bors 5cefa3a2c3 Auto merge of #1263 - gnzlbg:no_core_build, r=gnzlbg 
Test that targets without a shipping libcore / libstd build properly

This PR tests that `libc` builds on targets that currently don't ship a `libcore`/`libstd` by cross-compiling to them from Linux and MacOSX using `Xargo`.

This fixes the build on DragonflyBSD (superseeds #1237), Haiku, bitrig, and OpenBSD (superseeds #1259).

cc @asomers @strangelittlemonkey @semarie
2019-02-20 23:05:11 +00:00
ci Speed up documentation build by using cargo when possible 2019-02-20 18:42:34 +01:00
libc-test Auto merge of #1261 - glebpom:master, r=gnzlbg 2019-02-20 08:43:11 +00:00
src Remove the CMSG_ APIs from bitrig 2019-02-20 11:22:43 +01:00
.cirrus.yml Move FreeBSD testing from Travis/QEMU to Cirrus-CI 2018-12-07 13:11:09 -07:00
.gitignore Ignore the style executable used for testing 2019-02-02 16:32:00 -08:00
.travis.yml Re-enable target-specific docs 2019-02-20 15:27:57 +01:00
appveyor.yml Use Reqwest backend for Appveyor, not Hyper which is deprecated 2018-11-20 23:30:56 +00:00
build.rs Fix build on all platforms 2019-02-07 13:44:32 +01:00
Cargo.toml Bump libc version 2019-02-13 14:48:50 +01:00
CONTRIBUTING.md Generate a proper landing page for the master docs 2019-02-13 14:48:50 +01:00
LICENSE-APACHE Initial commit 2015-01-13 08:22:00 -08:00
LICENSE-MIT Initial commit 2015-01-13 08:22:00 -08:00
README.md Generate a proper landing page for the master docs 2019-02-13 14:48:50 +01:00
rustfmt.toml Check style using rustfmt and reformat 2019-02-07 11:13:38 +01:00

README.md

Travis-CI Status Appveyor Status Cirrus-CI Status Latest Version Documentation License

libc - Raw FFI bindings to platforms' system libraries

libc provides all of the definitions necessary to easily interoperate with C code (or "C-like" code) on each of the platforms that Rust supports. This includes type definitions (e.g. c_int), constants (e.g. EINVAL) as well as function headers (e.g. malloc).

This crate exports all underlying platform types, functions, and constants under the crate root, so all items are accessible as libc::foo. The types and values of all the exported APIs match the platform that libc is compiled for.

More detailed information about the design of this library can be found in its associated RFC.

Usage

Add the following to your Cargo.toml:

[dependencies]
libc = "0.2"

Features

  • use_std: by default libc links to the standard library. Disable this feature remove this dependency and be able to use libc in #![no_std] crates.

  • extra_traits: all structs implemented in libc are Copy and Clone. This feature derives Debug, Eq, Hash, and PartialEq`.

Rust version support

The minimum supported Rust toolchain version is Rust 1.13.0 . APIs requiring newer Rust features are only available on newer Rust toolchains:

Feature Version
union 1.19.0
const mem::size_of 1.24.0
repr(align) 1.25.0
extra_traits 1.25.0
core::ffi::c_void 1.30.0
repr(packed(N)) 1.33.0

Platform support

Platform-specific documentation of libc's master branch for all supported platforms.

See ci/build.sh for the platforms on which libc is guaranteed to build for each Rust toolchain. The test-matrix at Travis-CI, Appveyor, and Cirrus-CI show the platforms in which libc tests are run.

License

This project is licensed under either of

at your option.

Contributing

We welcome all people who want to contribute. Please see the contributing instructions for more information.

Contributions in any form (issues, pull requests, etc.) to this project must adhere to Rust's Code of Conduct.

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in libc by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.