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From: "john.harper at vuw dot ac.nz" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/105473] New: semicolon allowed when list-directed read
 integer with decimal='point'
Date: Wed, 04 May 2022 08:38:58 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105473

            Bug ID: 105473
           Summary: semicolon allowed when list-directed read integer with
                    decimal=3D'point'
           Product: gcc
           Version: 9.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: john.harper at vuw dot ac.nz
  Target Milestone: ---

List-directed reading of a number should give an error if it reads a semico=
lon
and decimal is not COMMA but this 9-line program gave the output shown below
it.
(The ifort compiler gave a positive value of ios, which I believe was corre=
ct.)

! Does list-directed reading an integer allow some non-integer input?
  implicit none
  integer n,ios
  character(1):: testinput =3D ';'
  print *,'testinput =3D "',testinput,'"'
  read(testinput,*,decimal=3D'point',iostat=3Dios) n
  print *,'n=3D',n,' ios=3D',ios
  if(ios>0) print *,'testinput was not an integer'
end program

john@johns-laptop:~/Jfh$ ./a.out
 testinput =3D ";"
 n=3D  1458129152  ios=3D           0
john@johns-laptop:~/Jfh$=