[Bug libfortran/99210] New: X editing for reading file with encoding='utf-8'

[leo at sai dot msu.ru via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99210

            Bug ID: 99210
           Summary: X editing for reading file with encoding='utf-8'
           Product: gcc
           Version: 10.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libfortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: leo at sai dot msu.ru
  Target Milestone: ---

Created attachment 50237
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50237&action=edit
Example bug 1x editing for utf-8 encoding file

nX edit must skip n characters. For files encoding='utf-8', skip n ISO/IEC
10646 characters.

But now, nX edit is skipping n bytes. And may cause "Fortran runtime error:
Invalid UTF-8 encoding" for valid UTF-8 files.