mirror of https://gitlab.com/QEF/q-e.git
52 lines
1.4 KiB
Fortran
52 lines
1.4 KiB
Fortran
!
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! Copyright (C) 2001-2008 Quantum-ESPRESSO group
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! This file is distributed under the terms of the
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! GNU General Public License. See the file `License'
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! in the root directory of the present distribution,
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! or http://www.gnu.org/copyleft/gpl.txt .
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!
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!---------------------------------------------------------------------
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SUBROUTINE io_pattern (fildrho,nirr,npert,u,iflag)
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!---------------------------------------------------------------------
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!
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USE kinds, ONLY : DP
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USE ions_base, ONLY : nat
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USE io_global, ONLY : stdout
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IMPLICIT NONE
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!
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! the i/o variables first
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!
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INTEGER :: nirr, npert(3*nat), iflag
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COMPLEX(DP) :: u(3*nat,3*nat)
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CHARACTER (len=*) :: fildrho ! name of the file
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CHARACTER (len=256):: filname ! complete name of the file
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!
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! here the local variables
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!
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INTEGER :: i,iunit
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LOGICAL :: exst
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IF (ABS(iflag).NE.1) CALL errore('io_pattern','wrong iflag',1+ABS(iflag))
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iunit = 4
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filname = TRIM(fildrho) //".pat"
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CALL seqopn(iunit,filname,'formatted',exst)
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IF (iflag.GT.0) THEN
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WRITE( stdout,'(5x,"WRITING PATTERNS TO FILE ",a)') TRIM(filname)
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WRITE(iunit,*) nirr
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WRITE(iunit,*) (npert(i),i=1,nirr)
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WRITE(iunit,*) u
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ELSE
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WRITE( stdout,'(5x,"READING PATTERNS FROM FILE ",a)') TRIM(filname)
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READ(iunit,*) nirr
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READ(iunit,*) (npert(i),i=1,nirr)
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READ(iunit,*) u
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END IF
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CLOSE (iunit)
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RETURN
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END SUBROUTINE io_pattern
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