从C+；调用Fortran子例程时出现错误值+； 我试图从C++调用FORTRAN子程序。作为参考，我有一个用Fortran编写的测试程序调用同一个子程序，它为程序提供了正确的值。我的Fortran知识非常有限，所以我不明白为什么我会获得垃圾值
Fortran代码如下所示：从C+；调用Fortran子例程时出现错误值+； 我试图从C++调用FORTRAN子程序。作为参考，我有一个用Fortran编写的测试程序调用同一个子程序，它为程序提供了正确的值。我的Fortran知识非常有限，所以我不明白为什么我会获得垃圾值,c++,fortran,fortran90,C++,Fortran,Fortran90,Fortran代码如下所示： program test_9j implicit none integer :: ll1, ll2, ll3, ll4, ll5, ll6, ll7, ll8, llmin, llmax, ndim, ier, i real(8) :: L1, L2, L3, L4, L5, L6, L7, L8, LMIN, LMAX real(8), allocatable, dimension(:) :: ninecof ll1 = 2 ll
program test_9j
implicit none
integer :: ll1, ll2, ll3, ll4, ll5, ll6, ll7, ll8, llmin, llmax, ndim, ier, i
real(8) :: L1, L2, L3, L4, L5, L6, L7, L8, LMIN, LMAX
real(8), allocatable, dimension(:) :: ninecof
ll1 = 2
ll2 = 2
ll3 = 2
ll4 = 2
ll5 = 2
ll6 = 2
ll7 = 2
ll8 = 2
llmin = 0
llmax = 6
print*, llmin, llmax, llmax-llmin+1
print*, ""
L1 = real(ll1,kind=8)
L2 = real(ll2,kind=8)
L3 = real(ll3,kind=8)
L4 = real(ll4,kind=8)
L5 = real(ll5,kind=8)
L6 = real(ll6,kind=8)
L7 = real(ll7,kind=8)
L8 = real(ll8,kind=8)
LMIN = real(llmin,kind=8)
LMAX = real(llmax,kind=8)
ndim = llmax - llmin + 1
ALLOCATE(ninecof(ndim),stat=ier)
! print*, ier
ninecof = 0.0
print*, "main Hi1"
! print*, "LL", LMIN, LMAX
CALL w9j(ll1,ll2,ll3,ll4,ll5,ll6,ll7,ll8,llmin,llmax,ndim,ninecof)
! print*, "main Hi2"
do i=1,ndim
print*, ninecof(i)
end do
print*, "main Hi3a"
!DEALLOCATE(ninecof)
print*, "main Hi3b"
end program test_9j
0 6 7
main Hi1
-8.5714285714285719E-003
1.7347234759768071E-018
1.6734693877551020E-002
1.7347234759768071E-018
1.3877551020408163E-002
0.0000000000000000
0.0000000000000000
main Hi3a
main Hi3b
subroutine w9j(l1,l2,l3,l4,l5,l6,l7,l8,lmin,lmax,ndim,cof9j)
implicit none
!--- in/out variables
integer, intent(in) :: l1, l2, l3, l4, l5, l6, l7, l8, lmin, lmax, ndim
real(8), dimension(ndim), intent(out) :: cof9j
!--- program variables
integer :: l1min, l1max, l2min, l2max, l3min, l3max
integer :: i, j, k, jmin, jmax, ier, dim1, dim2, dim3
real(8) :: y
real(8), allocatable, dimension(:) :: sixj1, sixj2, sixj3
real(8) :: rl1, rl2, rl3, rl4, rl5, rl6, rl7, rl8, ri
real(8) :: rl1min, rl1max, rl2min, rl2max, rl3min, rl3max
!--- --- ---
print*, 'AA', l1,l2,l3,l4,l5,l6,l7,l8,lmin,lmax,ndim
cof9j = 0.0
do k=1,ndim
i=k+lmin-1
! print*, 'i', i
! print*, ""
if((l2+i-l1 < 0) .or. (l2-i+l1 < 0) .or. (-l2+i+l1 < 0) .or. &
& (l2+l5-l8 < 0) .or. (l2-l5+l8 < 0) .or. (-l2+l5+l8 < 0) .or. &
& (l4+l3-l5 < 0) .or. (l4-l3+l5 < 0) .or. (-l4+l3+l5 < 0) .or. &
& (l4+l1-l7 < 0) .or. (l4-l1+l7 < 0) .or. (-l4+l1+l7 < 0) .or. &
& (l6+i-l3 < 0) .or. (l6-i+l3 < 0) .or. (-l6+i+l3 < 0) .or. &
& (l6+l7-l8 < 0) .or. (l6-l7+l8 < 0) .or. (-l6+l7+l8 < 0)) then
! print*, "violation of triangularity"
cof9j(k) = 0.0
cycle
end if
l1min=max(abs(i-l8),abs(l5-l1))
l1max=min(i+l8,l5+l1)
dim1 = l1max -l1min + 1
! print*, 'l1', l1min,l1max,dim1
! print*, ""
l2min=max(abs(l3-l7),abs(l1-l5))
l2max=min(l3+l7,l1+l5)
dim2 = l2max -l2min + 1
! print*, 'l2', l2min,l2max,dim2
! print*, ""
l3min=max(abs(i-l8),abs(l7-l3))
l3max=min(i+l8,l7+l3)
dim3 = l3max -l3min + 1
! print*, 'l3', l3min,l3max,dim3
! print*, ""
if (l1max < l1min .or. l2max < l2min .or. l3max < l3min) then
cof9j(k) = 0.0
cycle
end if
allocate(sixj1(dim1))
allocate(sixj2(dim2))
allocate(sixj3(dim3))
sixj1 = 0.0
sixj2 = 0.0
sixj3 = 0.0
ri = real(i) ! L1
rl1 = real(l1) ! L2
rl2 = real(l2) ! L3
rl3 = real(l3) ! L4
rl4 = real(l4) ! L5
rl5 = real(l5) ! L6
rl6 = real(l6) ! L7
rl7 = real(l7) ! L8
rl8 = real(l8) ! L9
rl1min = 0.0
rl1max = 0.0
rl2min = 0.0
rl2max = 0.0
rl2min = 0.0
rl3max = 0.0
! SUBROUTINE DRC6J (L2, L3, L4, L5, L6, L1MIN, L1MAX, SIXCOF, NDIM, IER)
! L1MAX=MIN(L2+L3,L5+L6) and L1MIN=MAX(ABS(L2-L3),ABS(L5-L6)).
! print*, "Hi1"
! print*, 'BB',ri,rl1,rl2,rl3,rl4,rl5,rl6,rl7,rl8,dim1,dim2,dim3
! L2 L3 L4 L5 L6
call DRC6J(ri,rl8,rl2,rl5,rl1,rl1min,rl1max,sixj1,dim1,ier)
! print*, "6j - 1"
! L2 L3 L4 L5 L6
call DRC6J(rl3,rl7,rl4,rl1,rl5,rl2min,rl2max,sixj2,dim2,ier)
! print*, "6j - 2"
! L2 L3 L4 L5 L6
call DRC6J(ri,rl8,rl6,rl7,rl3,rl3min,rl3max,sixj3,dim3,ier)
! print*, "6j - 3"
! print*, "Hi2"
if (l1min /= int(rl1min) .or. l1max /= int(rl1max) .or. &
& l2min /= int(rl2min) .or. l2max /= int(rl2max) .or. &
& l3min /= int(rl3min) .or. l3max /= int(rl3max)) then
print*, "Declared dimensions of 'sixj' arrays are wrong"
end if
jmin = max(l1min,l2min,l3min)
jmax = min(l1max,l2max,l3max)
print*, 'Jmin Jmax', jmin, jmax
y = 0.0
if(jmin <= jmax) then
do j=jmin,jmax
y = y + (2.0*j+1.0)*sixj1(j-l1min+1)*sixj2(j-l2min+1)*sixj3(j-l3min+1)
end do
end if
cof9j(k) = y
deallocate(sixj1,sixj2,sixj3)
end do
print*, 'end values', l1,l2,l3,l4,l5,l6,l7,l8,lmin,lmax,ndim
return
end subroutine w9j
子程序w9j（l1、l2、l3、l4、l5、l6、l7、l8、lmin、lmax、ndim、cof9j）
隐式无
!--- 输入/输出变量
整数，意图（in）：：l1、l2、l3、l4、l5、l6、l7、l8、lmin、lmax、ndim
真实（8）、尺寸（ndim）、意图（out）：：cof9j
!--- 程序变量
整数：：l1min，l1max，l2min，l2max，l3min，l3max
整数：：i，j，k，jmin，jmax，ier，dim1，dim2，dim3
雷亚尔（8）：：y
实数（8），可分配，维度（：）：：sixj1，sixj2，sixj3
实数（8）：rl1、rl2、rl3、rl4、rl5、rl6、rl7、rl8、ri
真实（8）：rl1min，rl1max，rl2min，rl2max，rl3min，rl3max
!--- --- ---
打印*，'AA'，l1，l2，l3，l4，l5，l6，l7，l8，lmin，lmax，ndim
cof9j=0.0
do k=1，ndim
i=k+lmin-1
! 打印*，'i'，i
! 打印*，“”
如果（（l2+i-l1<0）。或（l2-i+l1<0）。或（-l2+i+l1<0）。或&
&（l2+l5-l8<0）。或（l2-l5+l8<0）。或。（-l2+l5+l8<0）。或&
&（l4+l3-l5<0）。或（l4-l3+l5<0）。或。（-l4+l3+l5<0）。或&
&（l4+l1-l7<0）或（l4-l1+l7<0）或（-l4+l1+l7<0）。或&
&（l6+i-l3<0）。或（l6-i+l3<0）。或（-l6+i+l3<0）。或&
&（l6+l7-l8<0）或（l6-l7+l8<0）或（-l6+l7+l8<0））则
! 打印*，“违反三角形”
cof9j（k）=0.0
周期
如果结束
l1最小值=最大值（abs（i-l8）、abs（l5-l1））
l1最大值=最小值（i+l8，l5+l1）
dim1=l1max-l1min+1
! 打印*，'l1'，l1min，l1max，dim1
! 打印*，“”
L2分钟=最大值（abs（l3-l7）、abs（l1-l5））
l2max=min（l3+l7，l1+l5）
dim2=l2max-l2min+1
! 打印*，'l2'，l2分钟，l2最大，dim2
! 打印*，“”
l3min=最大值（防抱死制动系统（i-l8）、防抱死制动系统（l7-l3））
l3max=min（i+l8，l7+l3）
dim3=l3max-l3min+1
! 打印*，'l3'，l3min，l3max，dim3
! 打印*，“”
如果（l1max LMAX < /Cord>？在C++代码中没有设置这些变量，因此当你用C++代码打印它们时，你只需在这些变量的位置打印任何内存值，即它是未定义的。将这些变量传递到w9j
之前，这就是为什么这似乎可行的原因
<>注意，您已经在<代码> > W9J< /COD>中标记<代码> Lmin >代码> LMAX < /C> >代码>意图（in）<代码>，但随后您尝试将它们打印在C++代码中，就好像它们是“代码> W9J < /CUL>的输出。标记为ItAuto（In）< /C> >的参数不应该在该例程中修改。
更新以下评论
<>最后的修正是注意C++调用“代码> W9J < /C> >不通过<代码> L1 < /C> >，但代码不通过任何代码，在主代码< > W9J程序中使用未定义的值。< /P> < P> > <代码> W9J < /代码>：你设置<代码> Lmin >和 LMAX < /C>RC++代码是你设置这些变量的，因此当你在C++代码中打印它们时，你只是在这些变量的位置上打印内存中的任何值，即它是未定义的。在你的原始FORTRAN代码中，在把它们传递给<代码> W9J < /代码>之前，你要设置这些变量，这就是为什么它似乎起作用。
<>注意，您已经在<代码> > W9J< /COD>中标记<代码> Lmin >代码> LMAX < /C> >代码>意图（in）<代码>，但随后您尝试将它们打印在C++代码中，就好像它们是“代码> W9J < /CUL>的输出。标记为ItAuto（In）< /C> >的参数不应该在该例程中修改。
更新以下评论
<>最后的修正是注意C++调用“代码> W9J < /C> >不通过<代码> L1<代码>，但是你通过了 L9< /Cord>，它没有被设置为任何东西，导致在主代码<> W9J例程中使用未定义的值。
0 6 7
main Hi1
-8.5714285714285719E-003
1.7347234759768071E-018
1.6734693877551020E-002
1.7347234759768071E-018
1.3877551020408163E-002
0.0000000000000000
0.0000000000000000
main Hi3a
main Hi3b
subroutine w9j(l1,l2,l3,l4,l5,l6,l7,l8,lmin,lmax,ndim,cof9j)
implicit none
!--- in/out variables
integer, intent(in) :: l1, l2, l3, l4, l5, l6, l7, l8, lmin, lmax, ndim
real(8), dimension(ndim), intent(out) :: cof9j
!--- program variables
integer :: l1min, l1max, l2min, l2max, l3min, l3max
integer :: i, j, k, jmin, jmax, ier, dim1, dim2, dim3
real(8) :: y
real(8), allocatable, dimension(:) :: sixj1, sixj2, sixj3
real(8) :: rl1, rl2, rl3, rl4, rl5, rl6, rl7, rl8, ri
real(8) :: rl1min, rl1max, rl2min, rl2max, rl3min, rl3max
!--- --- ---
print*, 'AA', l1,l2,l3,l4,l5,l6,l7,l8,lmin,lmax,ndim
cof9j = 0.0
do k=1,ndim
i=k+lmin-1
! print*, 'i', i
! print*, ""
if((l2+i-l1 < 0) .or. (l2-i+l1 < 0) .or. (-l2+i+l1 < 0) .or. &
& (l2+l5-l8 < 0) .or. (l2-l5+l8 < 0) .or. (-l2+l5+l8 < 0) .or. &
& (l4+l3-l5 < 0) .or. (l4-l3+l5 < 0) .or. (-l4+l3+l5 < 0) .or. &
& (l4+l1-l7 < 0) .or. (l4-l1+l7 < 0) .or. (-l4+l1+l7 < 0) .or. &
& (l6+i-l3 < 0) .or. (l6-i+l3 < 0) .or. (-l6+i+l3 < 0) .or. &
& (l6+l7-l8 < 0) .or. (l6-l7+l8 < 0) .or. (-l6+l7+l8 < 0)) then
! print*, "violation of triangularity"
cof9j(k) = 0.0
cycle
end if
l1min=max(abs(i-l8),abs(l5-l1))
l1max=min(i+l8,l5+l1)
dim1 = l1max -l1min + 1
! print*, 'l1', l1min,l1max,dim1
! print*, ""
l2min=max(abs(l3-l7),abs(l1-l5))
l2max=min(l3+l7,l1+l5)
dim2 = l2max -l2min + 1
! print*, 'l2', l2min,l2max,dim2
! print*, ""
l3min=max(abs(i-l8),abs(l7-l3))
l3max=min(i+l8,l7+l3)
dim3 = l3max -l3min + 1
! print*, 'l3', l3min,l3max,dim3
! print*, ""
if (l1max < l1min .or. l2max < l2min .or. l3max < l3min) then
cof9j(k) = 0.0
cycle
end if
allocate(sixj1(dim1))
allocate(sixj2(dim2))
allocate(sixj3(dim3))
sixj1 = 0.0
sixj2 = 0.0
sixj3 = 0.0
ri = real(i) ! L1
rl1 = real(l1) ! L2
rl2 = real(l2) ! L3
rl3 = real(l3) ! L4
rl4 = real(l4) ! L5
rl5 = real(l5) ! L6
rl6 = real(l6) ! L7
rl7 = real(l7) ! L8
rl8 = real(l8) ! L9
rl1min = 0.0
rl1max = 0.0
rl2min = 0.0
rl2max = 0.0
rl2min = 0.0
rl3max = 0.0
! SUBROUTINE DRC6J (L2, L3, L4, L5, L6, L1MIN, L1MAX, SIXCOF, NDIM, IER)
! L1MAX=MIN(L2+L3,L5+L6) and L1MIN=MAX(ABS(L2-L3),ABS(L5-L6)).
! print*, "Hi1"
! print*, 'BB',ri,rl1,rl2,rl3,rl4,rl5,rl6,rl7,rl8,dim1,dim2,dim3
! L2 L3 L4 L5 L6
call DRC6J(ri,rl8,rl2,rl5,rl1,rl1min,rl1max,sixj1,dim1,ier)
! print*, "6j - 1"
! L2 L3 L4 L5 L6
call DRC6J(rl3,rl7,rl4,rl1,rl5,rl2min,rl2max,sixj2,dim2,ier)
! print*, "6j - 2"
! L2 L3 L4 L5 L6
call DRC6J(ri,rl8,rl6,rl7,rl3,rl3min,rl3max,sixj3,dim3,ier)
! print*, "6j - 3"
! print*, "Hi2"
if (l1min /= int(rl1min) .or. l1max /= int(rl1max) .or. &
& l2min /= int(rl2min) .or. l2max /= int(rl2max) .or. &
& l3min /= int(rl3min) .or. l3max /= int(rl3max)) then
print*, "Declared dimensions of 'sixj' arrays are wrong"
end if
jmin = max(l1min,l2min,l3min)
jmax = min(l1max,l2max,l3max)
print*, 'Jmin Jmax', jmin, jmax
y = 0.0
if(jmin <= jmax) then
do j=jmin,jmax
y = y + (2.0*j+1.0)*sixj1(j-l1min+1)*sixj2(j-l2min+1)*sixj3(j-l3min+1)
end do
end if
cof9j(k) = y
deallocate(sixj1,sixj2,sixj3)
end do
print*, 'end values', l1,l2,l3,l4,l5,l6,l7,l8,lmin,lmax,ndim
return
end subroutine w9j