About this library

ISO_Fortran_binding supports C/Fortran interoperability by providing the Fortran 2018 ISO_Fortran_binding.h C header file, corresponding function definitions, and CMake scripts for building, testing, and installing static and dynamic libraries. C programs may use the provided function to manipulate interoperable Fortran data objects by exploiting metadata describing the type, rank, extents, contiguity, and other information about the object.

• CFI_allocate, CFI_deallocate. Allocate or deallocate Fortran allocatable variables. 🐏
• CFI_establish. Establish the metadata necessary to access Fortran variables inside a C descriptor struct.
• CFI_address. If a C descriptor describes a scalar variable, find its address. If it describes an array, find the address of the element with column-major (Fortran ordering) indexing. :house:
• CFI_is_contiguous. Determine whether a Fortran array is contiguous.
• CFI_select_part. Update a C descriptor to select an element or contiguous elements of a Fortran derived type. The variable whose part is selected could be an array section of derived type. 🚣‍
• CFI_section. Update a C descriptor to select a section of an array. The array can be of interoperable derived types. The array can also be composed of elements of a derived type, i.e., a C descriptor updated by CFI_select_part. The array can also be a section.
• CFI_setpointer: Update a C descriptor to point at a Fortran variable. 🏹

Build, test, and install

cd ISO_Fortran_binding 
mkdir build
cd build
cmake .. -DCMAKE_INSTALL_PREFIX=<insert-install-path-here>
make
ctest
make install

Contributing

• Please submit questions, suggestions, or bug reports via our Issues page.
• Prior to submitting code via pull requests after
  1. Signing our Contributor License Agreemnt.
  2. Reviewing the GitHub Flow workflow.

Known issues

This repository uses GNU C language extensions that are not supported by the clang compiler.