# TREXIO

[![build](https://github.com/TREX-CoE/trexio/actions/workflows/actions.yml/badge.svg)](https://github.com/TREX-CoE/trexio/actions/workflows/actions.yml)
![GitHub release (latest by date)](https://img.shields.io/github/v/release/TREX-CoE/trexio)

TREX library fo efficient I/O.


## Minimal requirements (for users):

- Autotools             (autoconf, automake, libtool)
- C compiler            (gcc/icc/clang)
- Fortran compiler      (gfortran/ifort)
- HDF5 library          (>= 1.8)


## Installation procedure from the tarball (for users):

1. Download the `trexio-<version>.tar.gz` file
2. `gzip -cd trexio-<version>.tar.gz | tar xvf -`
3. `cd trexio-<version>`
4. `./configure --enable-silent-rules`
5. `make`
6. `make check`
7. `sudo make install`


**Note: on systems with no `sudo` access, one can replace `./configure` with `./configure prefix=${PWD}/_install` in order to execute `make install/uninstall` commands without `sudo` privileges.**


## Additional requirements (for developers):

- python3       (>= 3.6)
- Emacs         (>= 26.0)


## Installation procedure from the GitHub repo clone (for developers):

1. `git clone https://github.com/TREX-CoE/trexio.git`
2. `cd trexio`
3. `./autogen.sh`
4. `TREXIO_DEVEL=1 ./configure --enable-maintainer-mode`
5. `make`
6. `make check`
7. `sudo make install`


## Tutorial

**TODO**


## Technical documentation

[Documentation generated from TREXIO org-mode files.](https://trex-coe.github.io/trexio/)


### Miscellaneous

Note: The code should be compliant with the C99 [CERT C coding
standard](https://resources.sei.cmu.edu/downloads/secure-coding/assets/sei-cert-c-coding-standard-2016-v01.pdf). This can be checked with the `cppcheck` tool.