Dialogs simply fortran windows#

I have had to add 'libquadmath' library on Windows too. Add “libbind_me” and “libgfortran” libraries to the Linker Settings of this target (Fig.3). Also add automatically generated “add_bc.h” file from “/bind” folder to the same “cmain_debug” build target. Assign this file to “cmain_debug” build target. Close dialogs.Ĭreate a new file (File->New->Empty file). Change target’s compiler to “GNU GCC Compiler”. Give name “cmain_debug” for the new target. However first a new build target should be created, for which GCC compiler should be selected: Project->Properties…, Build targets, Add.

Dialogs simply fortran code#

Now is the time to write C++ code (I will use C++ not C) from which Fortran subroutine is called. The files “add_bc.f90” and “add_bc.h” should be generated in “/bind” folder.Īdd generated “add_bc.f90” file to “bind_me” project (Project->Add files…). And the column “C” is the type in the generated C header file. The column “Fortran Bind(c)” is the type used in the generated Fortran wrapping code. The column “Fortran” on the table is the type in your Fortran code. An information from this table is used in generated files. For more sophisticated cases you may need to add or change the items in “Types” table. See '_f' added after '$procname$' in Fig.2. Now open BindTo dialog (Fortran->Bind To…) (Fig.2).ĭefault settings should work for this simple example. Project 'bind_me' properties (Project->Properties.) Open that file and change the content to the code from above. Just right-click on the file name and select 'Rename file.' in the menu. You can rename the files directly in Projects tree, if files are closed. The new project contains “main.f90”, but you can rename it to “add.f90”. For the compiler, I selected “GNU Fortran Compiler”. I created project called “bind_me” (Fig.1).

In this example we have a simple Fortran subroutine: ! Add two integers in Fortran subroutine add_it ( a, b, c ) implicit none integer, intent ( in ) :: a integer, intent ( in ) :: b integer, intent ( out ) :: c print *, 'Hello from Fortran!' c = a + b end subroutineĬreate a new Code::Blocks project: File->New->Project, select 'Fortran library' and follow wizard.

BindTo does exactly the same: writes this wrapper code. We just need to write a thin wrapper code using this iso_c_binding. By use of this module, we can make our code callable from C. For this purpose Fortran standard includes iso_c_binding module.

Say, we have a nice Fortran code and now we what to make it accessible from C or other language, which can call C. Alternatively, Fortran code can be connected to Python by using “f2py” or its extension “f90wrap”. Actually, BindTo is what Fwrap intended to be, but its development was abandoned (maybe it is time for revival?). In general, this tool doesn’t do anything what you could not do by yourself. In addition to the exposing Fortran code to C, BindTo can generate Cython ( ) files, which enable to call Fortran from Python language. An intrinsic “iso_c_binding” module is used. However, when it comes to building of a graphical user interface, a preparation of data for calculations (pre-processing) or an analysis of the calculation results (post-processing), other programming languages may add significantly to the end product of your work.īindTo tool tries to make the communication with Fortran code from the outside more easily by automatically generating the required wrapping code. No doubt, that strong side of Fortran is the speed of calculation. The use of mixture of the languages lets programmers exploit the strong sides of each language. In many todays applications it is common to use two or even more programming languages. Fortran to C: Example of derived type with Bind(C)įortran to C: Example of derived type without Bind(C)