[Bug fortran/84073] In -fc-prototypes fixed (nonzero) length strings are mapped to plain char in prototype.

[tkoenig at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84073

--- Comment #8 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
(In reply to Ed Smith-Rowland from comment #7)
> Thank you.
> 
> I was curious, is there anything/anyone working the opposite problem?
> A -ffortran-interfaces converting structs to type and function protos to
> module interfaces?

I am not aware of anything like that.

For function prototypes at least, one problem is ambiguity on the C side.

Take

void foo(int *a, int n);

How should the corresponding Fortran subroutine look like?

subroutine foo(a, n)
  real :: a
  integer :: n

would be one option,

subroutine foo(a,n)
  real :: a(*)
  integer :: n

another.