xref: /libCEED/rust/libceed-sys/src/lib.rs (revision f51dee9518eb5350fb78db022014ce90d8e28980)
1 // Copyright (c) 2017, Lawrence Livermore National Security, LLC. Produced at
2 // the Lawrence Livermore National Laboratory. LLNL-CODE-734707. All Rights
3 // reserved. See files LICENSE and NOTICE for details.
4 //
5 // This file is part of CEED, a collection of benchmarks, miniapps, software
6 // libraries and APIs for efficient high-order finite element and spectral
7 // element discretizations for exascale applications. For more information and
8 // source code availability see http://github.com/ceed.
9 //
10 // The CEED research is supported by the Exascale Computing Project 17-SC-20-SC,
11 // a collaborative effort of two U.S. Department of Energy organizations (Office
12 // of Science and the National Nuclear Security Administration) responsible for
13 // the planning and preparation of a capable exascale ecosystem, including
14 // software, applications, hardware, advanced system engineering and early
15 // testbed platforms, in support of the nation's exascale computing imperative
16 
17 //! # libCEED Rust Interface
18 //!
19 //! This is the documentation for the low level Rust bindings to the libCEED C interface.
20 //! See the full libCEED user manual [here](https://libceed.readthedocs.io).
21 //!
22 //! libCEED is a low-level API for for the efficient high-order discretization methods
23 //! developed by the ECP co-design Center for Efficient Exascale Discretizations (CEED).
24 //! While our focus is on high-order finite elements, the approach is mostly algebraic
25 //! and thus applicable to other discretizations in factored form.
26 //!
27 //! ## Usage
28 //!
29 //! To use low level libCEED bindings in a Rust package, the following `Cargo.toml`
30 //! can be used.
31 //! ```toml
32 //! [dependencies]
33 //! libceed-sys = "0.8.0"
34 //! ```
35 //!
36 //! For a development version of the libCEED Rust bindings, use the following `Cargo.toml`.
37 //! ```toml
38 //! [dependencies]
39 //! libceed-sys = { git = "https://github.com/CEED/libCEED", branch = "main" }
40 //! ```
41 //!
42 //! Supported features:
43 //! * `static` (default): link to static libceed.a
44 //! * `system`: use libceed from a system directory (otherwise, install from source)
45 //!
46 //! ## Development
47 //!
48 //! To develop libCEED, use `cargo build` in the `rust/libceed-sys` directory to
49 //! install a local copy and build the bindings. If you need custom flags for the
50 //! C project, we recommend using `make configure` to cache arguments. If you
51 //! disable the `static` feature, then you'll need to set `LD_LIBRARY_PATH` for
52 //! doctests to be able to find it. You can do this in `$CEED_DIR/lib` and set
53 //! `PKG_CONFIG_PATH`.
54 //!
55 //! Note: the `LD_LIBRARY_PATH` workarounds will become unnecessary if [this
56 //! issue](https://github.com/rust-lang/cargo/issues/1592) is resolved -- it's
57 //! currently closed, but the problem still exists.
58 
59 pub mod bind_ceed {
60     #![allow(non_upper_case_globals)]
61     #![allow(non_camel_case_types)]
62     #![allow(dead_code)]
63     include!(concat!(env!("OUT_DIR"), "/bindings.rs"));
64 }
65