(j3.2006) So that I don't need to do stuff already done....

[Dan Nagle]

Hi,

> On Oct 18, 2016, at 23:59 , Van Snyder <Van.Snyder at JPL.NASA.GOV> wrote:
> 
> I think it's more likely the system will have POSIX functions for
> reading directory contents than that it will have the "ls" command.

Changing 'ls' to (say) 'dir' may be done at runtime.
Trying to run with a missing library external might be difficult.

> 
> On Wed, 2016-10-19 at 02:28 +0000, Bill Long wrote:
>> Seems like a hard way get a list of the files in a directory.  And depends on the file system being POSIX.   Why not do something easy, like
>> 
>> program readdir
>>  implicit none
>>  character(1000) :: filename
>>  integer :: u,ios
>> 
>>  call execute_command_line ("ls -1 > names.txt")
>>  open (newunit=u, file="names.txt")
>>  do 
>>     read (u,"(a)", iostat=ios) filename
>>     if (ios /= 0) exit
>>     write (*,*) trim(filename)
>>  end do
>> 
>> end program readdir
>> 
>> 
>> Cheers,
>> Bill
>> 
>> 
>> On Oct 18, 2016, at 9:13 PM, Van Snyder <Van.Snyder at jpl.nasa.gov> wrote:
>> 
>>> So that I don't need to do stuff that somebody else has almost certainly
>>> already done...
>>> 
>>> Has anybody written interfaces to POSIX routines opendir, readdir and
>>> closedir, and used them to read the file names in a directory?
>>> 
>>> NAG provides wrappers for these routines in f90_unix_dirent (and perhaps
>>> others do something similar), but since I'm required to use several
>>> processors I'd prefer something open-source and based on Clause 18.
>>> 
>>> 
>>> _______________________________________________
>>> J3 mailing list
>>> J3 at mailman.j3-fortran.org
>>> http://mailman.j3-fortran.org/mailman/listinfo/j3
>> 
>> Bill Long                                                                       longb at cray.com
>> Fortran Technical Support  &                                  voice:  651-605-9024
>> Bioinformatics Software Development                     fax:  651-605-9142
>> Cray Inc./ Cray Plaza, Suite 210/ 380 Jackson St./ St. Paul, MN 55101
>> 
>> 
> 
> 
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--

Cheers!
Dan Nagle