我引用About using Fortran function in C with iso_c_binding编写一个中间程序,以便可以在C中调用Odrpack95(http://www.netlib.org/odrpack/)。但是我遇到了一些问题,需要别人的帮助。
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(我在ODRPACK95中翻译并修改了subroutine wrapper_ODR(FCN,N,M,NP,NQ,BETA,Y,X,&
DELTA,WE,WD,IFIXB,IFIXX,JOB,NDIGIT,TAUFAC,&
SSTOL,PARTOL,MAXIT,IPRINT,LUNERR,LUNRPT,&
STPB,STPD,SCLB,SCLD,WORK,IWORK,INFO,LOWER,UPPER) bind(C, name='wrapper_ODR')
!DEC$ ATTRIBUTES DLLEXPORT :: wrapper_ODR
use iso_c_binding
use ODRPACK95
implicit none
interface
subroutine FCN(N,M,NP,NQ,LDN,LDM,LDNP,BETA,XPLUSD,IFIXB,IFIXX,LDIFX,&
IDEVAL,F,FJACB,FJACD,ISTOP) bind(C)
use, intrinsic :: iso_c_binding
implicit none
integer(c_int) :: IDEVAL,ISTOP,LDIFX,LDM,LDN,LDNP,M,N,NP,NQ
real (c_double) :: BETA(1:NP),F(1:LDN,1:NQ),FJACB(1:LDN,1:LDNP,1:NQ), &
FJACD(1:LDN,1:LDM,1:NQ),XPLUSD(1:LDN,1:M)
integer(c_int) :: IFIXB(1:NP),IFIXX(1:LDIFX,1:M)
end subroutine
end interface
integer(c_int) :: N,M,NP,NQ
real(c_double) :: BETA(1:NP),Y(1:N,1:NQ),X(1:N,1:M)
!!!!!Optional
integer(c_int), optional :: IFIXB(:),IFIXX(:,:),JOB,NDIGIT,MAXIT&
,IPRINT,LUNERR,LUNRPT,IWORK(:),INFO
real(c_double), optional :: DELTA(:,:),&
WE(:,:,:),WD(:,:,:),TAUFAC,SSTOL,PARTOL,&
STPB(:),STPD(:,:),SCLB(:),SCLD(:,:),&
WORK(:),LOWER(:),UPPER(:)
call ODR(inter_func,N,M,NP,NQ,BETA,Y,X)
contains
subroutine inter_func(N,M,NP,NQ,LDN,LDM,LDNP,BETA,XPLUSD,IFIXB,IFIXX,LDIFX,&
IDEVAL,F,FJACB,FJACD,ISTOP)
use REAL_PRECISION
integer :: IDEVAL,ISTOP,LDIFX,LDM,LDN,LDNP,M,N,NP,NQ
REAL (KIND=R8) :: BETA(1:NP),F(1:LDN,1:NQ),FJACB(1:LDN,1:LDNP,1:NQ), &
FJACD(1:LDN,1:LDM,1:NQ),XPLUSD(1:LDN,1:M)
INTEGER :: IFIXB(1:NP),IFIXX(1:LDIFX,1:M)
integer(c_int) :: inter_IDEVAL,inter_ISTOP,inter_LDIFX,inter_LDM,&
inter_LDN,inter_LDNP,inter_M,inter_N,inter_NP,inter_NQ
real (c_double) :: inter_BETA(1:size(BETA)),inter_F(1:size(F,1),1:size(F,2)),&
inter_FJACB(1:size(FJACB,1),1:size(FJACB,3),1:size(FJACB,3)),&
inter_FJACD(1:size(FJACD,1),1:size(FJACD,2),1:size(FJACD,3)),inter_XPLUSD(1:size(XPLUSD,1),1:size(XPLUSD,2))
integer(c_int) :: inter_IFIXB(1:size(IFIXB)),inter_IFIXX(1:size(IFIXX,1),1:size(IFIXX,2))
inter_IDEVAL = IDEVAL
inter_ISTOP = ISTOP
inter_LDIFX = LDIFX
inter_LDM = LDM
inter_LDN = LDN
inter_LDNP = LDNP
inter_M = M
inter_N = N
inter_NP = NP
inter_NQ = NQ
!!!!REAL
inter_BETA = BETA
inter_F = F
inter_FJACB = FJACB
inter_FJACD = FJACD
inter_XPLUSD = XPLUSD
!!!!INTEGER[]
inter_IFIXB = IFIXB
inter_IFIXX = IFIXX
end subroutine inter_func
end subroutine wrapper_ODR
)
simple_example.f90
#include "stdafx.h"
#include <iostream>
#include <stdio.h>
#include <math.h>
using namespace std;
extern "C" {
void wrapper_ODR(void(*FCN)(int*, int*, int*, int*, int*, int*, int*, \
double [] ,double [1][4],int [], int [],int* ,\
int*, double [1][4],double [1][2][4],double [] ,int* ),\
int *N,int *M,int *NP,int *NQ,double BETA[],double Y[1][4],double X[1][4],\
double DELTA[1][4],double WE[],double WD[],int IFIXB[],int IFIXX[],\
int *JOB,int *NDIGIT,double *TAUFAC,double *SSTOL, double *PARTOL,\
int *MAXIT, int *IPRINT, int *LUNERR, int *LUNRPT,double STPB[],\
double STPD[], double SCLB[], double SCLD[], double WORK[], double IWORK[],\
int *INFO, double LOWER[], double UPPER[]);
}
void FCN(int *N, int *M, int *NP, int *NQ, int *LDN, int *LDM, int *LDNP,\
double BETA[], double XPLUSD[1][4], int IXIFB[], int IFIXX[],int *LDIFX,\
int *IDEVAL, double F[1][4], double FJACB[1][2][4], double FJACD[],int *ISTOP){
// BETA[NP], XPLUSD[M][LDN], IXIFB[NP], IFIXX[M][LDIFX], F[NQ][LDN], FJACB[NQ][LDNP][LDN], FJACD[NQ][LDM][LDN]
*ISTOP =5;
if (fmod(*IDEVAL,10.0)!=0) {
for (int i = 0; i < *N; i++) {
F[0][i] = BETA[0] * XPLUSD[0][i] + BETA[1];
}
}
}
int main(){
//X[M][N] Y[NQ][N],BETA[NP]
int NP = 2, N = 4, M = 1, NQ = 1;
double BETA[] = { 2.0, 0.5 };
double X[1][4] = { 0.0, 1.0, 2.0, 3.0 };
double Y[1][4] = { 2.0, 5.0, 8.0, 11.0 };
wrapper_ODR(&FCN, &N, &M, &NP, &NQ, BETA, Y, X, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, \
NULL, NULL, NULL, NULL, NULL, NULL, NULL,NULL, NULL, NULL, NULL, NULL, NULL, \
NULL, NULL);
system("pause");
return 0;
}
,NP = 2
,N = 4
,M = 1
,NQ = 1
,LDN = 4
,LDM = 1
,{{1} }
LDNP = 2
用于在LDIFX = 4
不等于0时停止回归过程。但是,当执行上面的C代码时,无论ISTOP
是什么,它都会继续回归程序。 ISTOP
似乎没有传递给ISTOP
。
在Fortran代码中,带有ISTOP
的注释部分表示为传递数组数据部分。好吧,它没有响铃如何通过subroutine inter_func
变量将数组数据从C传递到Fortran或Fortran到C.
我修改了上面的C和Fortran代码,结果如下所示: 在C代码中,我设置ISTOP = 5,但结果报告显示它为0。
然后,如果ODRPACK程序成功,它应该是这样的:
这里还有从!
修改的Fortran代码,它与C代码相同:
inter_
似乎C函数simple_example.f90
的变量值没有传递给wrapper_ODR,但我不知道我的问题在哪里?有人能帮助我吗?