mirror of
https://github.com/QuantumPackage/qp2.git
synced 2024-12-22 11:33:29 +01:00
60 lines
1.7 KiB
Fortran
60 lines
1.7 KiB
Fortran
|
|
integer function getUnitAndOpen(f,mode)
|
|
implicit none
|
|
|
|
BEGIN_DOC
|
|
! :f:
|
|
! file name
|
|
!
|
|
! :mode:
|
|
! 'R' : READ, UNFORMATTED
|
|
! 'W' : WRITE, UNFORMATTED
|
|
! 'r' : READ, FORMATTED
|
|
! 'w' : WRITE, FORMATTED
|
|
! 'a' : APPEND, FORMATTED
|
|
! 'x' : READ/WRITE, FORMATTED
|
|
!
|
|
END_DOC
|
|
|
|
character*(*) :: f
|
|
character*(256) :: new_f
|
|
integer :: iunit
|
|
logical :: is_open, exists
|
|
character :: mode
|
|
|
|
is_open = .True.
|
|
iunit = 20
|
|
new_f = f
|
|
do while (is_open)
|
|
inquire(unit=iunit,opened=is_open)
|
|
if (.not.is_open) then
|
|
getUnitAndOpen = iunit
|
|
endif
|
|
iunit = iunit+1
|
|
enddo
|
|
if (mode.eq.'r') then
|
|
inquire(file=f,exist=exists)
|
|
if (.not.exists) then
|
|
open(unit=getUnitAndOpen,file=f,status='NEW',action='WRITE',form='FORMATTED')
|
|
close(unit=getUnitAndOpen)
|
|
endif
|
|
open(unit=getUnitAndOpen,file=f,status='OLD',action='READ',form='FORMATTED')
|
|
else if (mode.eq.'R') then
|
|
inquire(file=f,exist=exists)
|
|
if (.not.exists) then
|
|
open(unit=getUnitAndOpen,file=f,status='NEW',action='WRITE',form='UNFORMATTED')
|
|
close(unit=getUnitAndOpen)
|
|
endif
|
|
open(unit=getUnitAndOpen,file=f,status='OLD',action='READ',form='UNFORMATTED')
|
|
else if (mode.eq.'W') then
|
|
open(unit=getUnitAndOpen,file=new_f,status='UNKNOWN',action='WRITE',form='UNFORMATTED')
|
|
else if (mode.eq.'w') then
|
|
open(unit=getUnitAndOpen,file=new_f,status='UNKNOWN',action='WRITE',form='FORMATTED')
|
|
else if (mode.eq.'a') then
|
|
open(unit=getUnitAndOpen,file=new_f,status='UNKNOWN',action='WRITE',position='APPEND',form='FORMATTED')
|
|
else if (mode.eq.'x') then
|
|
open(unit=getUnitAndOpen,file=new_f,form='FORMATTED')
|
|
endif
|
|
end function getUnitAndOpen
|
|
|