Fortran Debug Utilities

A collection of some utilities useful for debugging code.

Warning

These procedures are not intended to be included in production code! Make sure you remove them once done with debugging

Example

Use the dbg subroutine to write to stdout, even from pure and elemental procedures:

module example_mod
    implicit none

    private
    public some_pure_sub

contains

    pure subroutine some_pure_sub()

        block
            use debug_utils, only: dbg
            call dbg('Hello from some_pure_sub' // new_line('c')  &
                    // 'This can be useful for debugging pure procedures')
        end block
    end subroutine

end module

program example
    use example_mod, only: some_pure_sub
    implicit none

    write(*,'(a)') 'Before pure sub'
    call some_pure_sub
    write(*,'(a)') 'After pure sub'
end program

Note the use of a block which could be convenient to keep module use and the subroutine call close to each other. This outputs:

Before pure sub
[debug]
    Hello from some_pure_sub
    This can be useful for debugging pure procedures
After pure sub

Building

CMake

CMake build is coming soon…​

Fortran Package Manager (FPM)

In your Fortran Package Manager fpm.toml configuration file, add this repo as a dependency:

[dependencies]
debug-utils = { git = "[email protected]:plevold/fortran-debug-utils.git", tag = "v0.0.1" }