Error handling approaches

[FortranFan]

@everythingfunctional

… I have seen it suggested that it could be used as a poor man’s emulation of exception handling, which intrigues me.

I’m a “culprit” when it comes to such suggestions, see an example here!

Return from contained subroutine

To the best of my knowledge, there isn’t a mechanism in the language to exit the host procedure via a RETURN from a contained procedure. I personally don’t think such an option will be good for Fortran, I would never use it. One can consider adding a dummy argument to the foo toward an error handling callback procedure that foo/bar can invoke which can then allow the caller to take control of the situation. Or, there is always the ALTERNATE RETURN, a poor Fortranner’s substitute due to relen…