[Bug fortran/66643] Missing compilation error for formatted data transfer without format

[gerhard.steinmetz.fort...@t-online.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66643

--- Comment #1 from Gerhard Steinmetz <gerhard.steinmetz.fort...@t-online.de> 
---
Minimalistic code :

$ cat z_write_none.f90
program p
   write (*)
end

$ gfortran -g -O0 -Wall -fcheck=all z_write_none.f90
$ a.out
At line 2 of file z_write_none.f90 (unit = 6, file = 'stdout')
Fortran runtime error: Missing format for FORMATTED data transfer

---

As already known, correct code might look like :

$ cat z_write_fmt_ok.f90
program p
   write (*, *) 1
   print *, 'a'
   print *
end