When I compile the program below, I have an error and a warning in the call Coor_Trans
command line as
Warning: Line truncated
Error: Syntax error in argument list
I compile the program several times, but it does not work. Maybe there is something wrong with my call command.
program 3D
implicit none
integer :: i,j,k
integer, parameter :: FN=2,FML=5,FMH=5
integer, parameter :: NBE=FN*FML*FMH
real, parameter :: pi = 4*atan(1.0)
real(kind=4), dimension(1:FN,1:FML+1,1:FMH+1) :: BEXL,BEYL,BEZL
real(kind=4), dimension(1:FN,1:FML,1:FMH) :: BEXC,BEYC,BEZC,BE2A,BE2B,ANGLE
real(kind=4), dimension(1:NBE,1:1,1:1) :: BEXC1,BEYC1,BEZC1,BE2A1,BE2B1,ANGLE1
real(kind=4), dimension(1:NBE,1:NBE) :: LOC_PTS1,LOC_PTS2,LOC_PTS3
real :: LOC_1,LOC_2,LOC_3
do i=1,FN
do j=1,FML
do k=1,FMH
BEXC(i,j,k) = 0.5*(BEXL(i,j,k) + BEXL(i,j+1,k))
BEYC(i,j,k) = 0.5*(BEYL(i,j,k) + BEYL(i,j+1,k))
BEZC(i,j,k) = 0.5*(BEZL(i,j,k) + BEZL(i,j,k+1))
BE2A(i,j,k) = FL(i)/FML + j*0 + k*0
BE2B(i,j,k) = FH(i)/FMH + j*0 + k*0
ANGLE(i,j,k) = BETA(i) + j*0 + k*0
end do
end do
end do
BEXC1 = reshape(BEXC,(/NBE,1,1/))
BEYC1 = reshape(BEYC,(/NBE,1,1/))
BEZC1 = reshape(BEZC,(/NBE,1,1/))
BE2A1 = reshape(BE2A,(/NBE,1,1/))
BE2B1 = reshape(BE2B,(/NBE,1,1/))
ANGLE1 = reshape(ANGLE,(/NBE,1,1/))
do i=1,NBE
do j=1,NBE
call Coor_Trans(BEXC1(i,1,1),BEYC1(i,1,1),BEZC1(i,1,1),BEXC1(j,1,1),BEYC1(j,1,1),BEZC1(j,1,1),ANGLE1(j,1,1),LOC_1,LOC_2,LOC_3)
LOC_PTS1(i,j) = LOC_1
LOC_PTS2(i,j) = LOC_2
LOC_PTS3(i,j) = LOC_3
end do
end do
end program 3D
subroutine Coor_Trans(GLOB_PTSX1,GLOB_PTSY1,GLOB_PTSZ1,GLOB_PTSX2,GLOB_PTSY2,GLOB_PTSZ2,BETA,LOC_PTS1,LOC_PTS2,LOC_PTS3)
implicit none
real(kind=4), intent(in) :: GLOB_PTSX1,GLOB_PTSY1,GLOB_PTSZ1,GLOB_PTSX2,GLOB_PTSY2,GLOB_PTSZ2,BETA
real(kind=4), intent(out) :: LOC_PTS1,LOC_PTS2,LOC_PTS3
real, parameter :: pi = 4*atan(1.0)
real :: E1,E2
E1 = cos(BETA/180*pi)
E2 = sin(BETA/180*pi)
LOC_PTS1 = (GLOB_PTSX1-GLOB_PTSX2)*E1 + (GLOB_PTSY1-GLOB_PTSY2)*E2
LOC_PTS2 = (GLOB_PTSZ1-GLOB_PTSZ2)
LOC_PTS3 = -(GLOB_PTSX1-GLOB_PTSX2)*E2 + (GLOB_PTSY1-GLOB_PTSY2)*E1
!return
end subroutine Coor_Trans
The length of your call
statement is too long. The default maximum width of a line is 132.
The compiler will truncate input lines at that width [as it did--and said so with the warning]. After that, you had an incomplete line (e.g. call foo(a,b
that was missing the closing )
) which generated the second warning message.
The best solution is to break up the long line with a continuation
character, namely &
:
call Coor_Trans(BEXC1(i,1,1),BEYC1(i,1,1),BEZC1(i,1,1), &
BEXC1(j,1,1),BEYC1(j,1,1),BEZC1(j,1,1), &
ANGLE1(j,1,1),LOC_1,LOC_2,LOC_3)
Most C-style guides recommend keeping lines at <= 80 chars. IMO, that's a good practice even with fortran.
Note, with GNU fortran, you can increase the limit with the -ffree-line-length-<n>
command line option. So, you could try -ffree-line-length-512
, but, I'd do the continuation above
Historical footnote: 132 columns was the maximum width that a high speed, chain driven, sprocket feed, fanfold paper, line printer could print.