INQUIRE(FILE='OPTCELL',EXIST=FILFLG) IF (FILFLG) THEN OPEN(67,FILE='OPTCELL',FORM='FORMATTED',STATUS='OLD') READ(67,"(3I1)") (ICELL(I),I=1,3) CLOSE(67) DO I=1,3 SAVE(I)=FCELL(I,I) ENDDO FCELL=0.0d0 DO I=1,3 IF (ICELL(I)==1) FCELL(I,I)=SAVE(I) ENDDO ENDIF
! just one simple example ! relaxation in x directions only ! SAVE=FCELL(1,1) ! FCELL=0 ! F90 style: set the whole array to zero ! FCELL(1,1)=SAVE