Test case:
program main
integer io_unit
character*80 str
io_unit = 10
open (unit=io_unit,file='in',status='old',form='formatted')
read (io_unit,'(A)') str
read (io_unit,'()')
read (io_unit,'(A)') str
print *,str, "this should be the third line"
close(unit=io_unit,status='keep')
end
and the file named "in":
first line: aaa
second line:bbb
third line: ccc
The second read statment does not eat the second line. The output is:
second line:bbb this should be the third line
But if we remove the first read statement, the result is correct. IMHO this is
related with null i/o list and fmt_null.
This is extracted from 191.fma3d.
--
Summary: NULL I/O list and Format error.
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: fortran
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: wf_cs at yahoo dot com
CC: gcc-bugs at gcc dot gnu dot org
GCC host triplet: i686-pc-linux
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17709
