[Bug fortran/36725] g0 edit descriptor: Missing compile-time checking for invalid g0.d

[thenlich at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=36725

--- Comment #9 from Thomas Henlich <thenlich at gcc dot gnu.org> ---
Created attachment 47827
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=47827&action=edit
Proposed patch to perform runtime check in fmt_g0_4.f08

This checks ensure that G0.d output is not broken.