[Bug libfortran/27360] New: Memory leaks when reading logicals

[eedelman at gcc dot gnu dot org]

It seems that the io library is leaking memory when reading logicals, as
demonstrated by the small program below; when running, the program uses more
and more memory until it's killed.  I don't see this behaviour with data types
other than logicals.

erik:/var/tmp$ cat memoryleak.f90 
program memoryleak

    implicit none
    logical :: foo
    integer :: ios

    ios = 0
    do while (ios == 0)
        read (*, *, iostat=ios) foo
    end do

end program memoryleak
erik:/var/tmp$ gfortran memoryleak.f90 
erik:/var/tmp$ awk 'BEGIN{while (1) print "F"}' | a.out
Killed


-- 
           Summary: Memory leaks when reading logicals
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libfortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: eedelman at gcc dot gnu dot org
  GCC host triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27360