fckitlib 0.13.5.dev20250507

"fckitlib"

FCKit

Fortran toolkit for interoperating Fortran with C/C++.

In addition useful algorithms from ecKit are wrapped with Fortran.

Project website and reference documentation on released versions: https://confluence.ecmwf.int/display/FCKIT

fctest

Unit Testing Framwork for Fortran, made easy.

• C Preprocessor Macros are used to make writing tests extremely fast
• Tests in one file are bundled in a Test Suite (Fortran Module)
• Python script generates a main program for a Test Suite
• Driven by CMake build system ( and ctest )

To use in your ecbuild project

Simply add following line to your project's CMakeLists.txt

ecbuild_add_option( FEATURE FCTEST  DEFAULT ${ENABLE_TESTS}
                    DESCRIPTION "Fortran Unit Testing Framework"
                    REQUIRED_PACKAGES "NAME fckit" )

See src/examples folder how to add and create the unit-tests.

fckit

Various Fortran modules helpful to create mixed-language applications

• MPI
• Logging

Offline build of fckit Python virtual environment

An offline build/installation of the fckit Python virtual environment can be completed as follows:

1. Download all necessary Python dependencies listed in fckit/requirements.txt. ruamel.yaml.clib is not a pure Python package, so we have to ensure a wheel compatible with the target platform is downloaded. pip compatibility tags for any system can be displayed using python3 -m pip debug --verbose, and buit-distributions (i.e. wheels) for ruamel.yaml.clib can be found here. For a linux installation based on an x86 architecture using Python3.10, the following command can be used:

python3 -m pip download -r requirements.txt -d <dir-to-store-dependencies> \
--only-binary=:all: --python-version 310 --platform manylinux_2_17_x86_64

2. scp/rsync/copy the directory containing the dependencies to the offline system.

3. Add the following two arguments to the fckit CMake configuration step:

-DENABLE_FCKIT_VENV_OFFLINE=ON -DFCKIT_VENV_WHEEL_DIR=<dir-containing-dependencies>

License

Please read LICENSE.

---

ECMWF