[Bug fortran/31614] New: Inability to read ascii text with generic 'f' format

["Catherine dot M dot Moroney at jpl dot nasa dot gov" <gcc-bugzilla at gcc dot gnu dot org>]

I have a text file that I want to read, consisting of some text, integers and
floats.  I'm
not able to get the code to compile without exactly specifying the width and
number
of decimal places for the ints and floats.

Ideally, I would like to be able to write a line of code like:
read(10,'(10x, f, f)') and have it compile and correctly read in the
data.  Instead, I find that I have to exactly specify both the field
width and number of decimal places "read(10,'(10x, e13.9, f10.5))".

I've got some very large text files with irregular formattting, and it
would be very nice if I could just specify (10x,f,f) as my formatting
statement.  Is this possible in gfortran?

And, can I attach files when filing a bug report?

Sample text file:

 solzen=   0.0000000E+00   10.00000
 All Wind Speeds
alb,xindx,imin,frac,aeropt =      6.761     0.023    11     100.0   
0.19440E+00
    1.8679    1.8538    1.8439    1.8197    1.7722    1.7360    1.7019   
1.6785    1.6615    1.6644
    1.6870    1.6701    1.6074    1.5229    1.4210    1.3474    1.2725   
1.2308    1.2161    1.2165


Sample code:

PROGRAM fread

  implicit none

   character(len=200)     :: flname, chjunk, chformat
   real                   :: sza_low, sza_upp
   integer                :: istat

   flname="data.txt"

   open(10, file=flname,  form='formatted', access='sequential', &
        action='read', pad='yes', status='old')

   read(10,'(12x, e13.9, f11.5)', iostat=istat) sza_low, sza_upp
!   read(10,'(A11, e13.9, f11.5)',iostat=istat) chjunk2, sza_low, sza_upp
!   read(10,'(A11, f13.9, f11.5)',iostat=istat) chjunk2, sza_low, sza_upp

   write(*,*) istat
   write(*,*) chjunk
   write(*,*) sza_low    
   write(*,*) sza_upp

END PROGRAM fread


-- 
           Summary: Inability to read ascii text with generic 'f' format
           Product: gcc
           Version: 4.1.1
            Status: UNCONFIRMED
          Severity: minor
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: Catherine dot M dot Moroney at jpl dot nasa dot gov


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31614