/*This module contributed by Doug Heisterkamp
Modified by Jim Hugunin
*/


#include"Python.h"
#include"Numeric/arrayobject.h"

typedef struct { float r, i; } f2c_complex;
typedef struct { double r, i; } f2c_doublecomplex;
typedef long int (*L_fp)();

static PyObject *ErrorObject;

static PyObject *LapackError()
{  if (! ErrorObject)
      ErrorObject = PyString_FromString("LapackError");
   Py_INCREF(ErrorObject);
   return ErrorObject;
}

static PyObject *ErrorReturn(char *mes)
{  if (!ErrorObject)
      ErrorObject = PyString_FromString("LapackError");
   PyErr_SetString(ErrorObject,mes);
   return NULL;
}

#define TRY(E) if( ! (E)) return NULL

static int lapack_lite_CheckObject(PyObject *ob, int t, char *obname,
        char *tname, char *funname)
{       char buf[255];
        if (! PyArray_Check(ob))
        {       sprintf(buf,"Expected an array for parameter %s in lapack_dge.%s",obname, funname);
        ErrorReturn(buf);
        return 0;
    }
    if (!(((PyArrayObject *)ob)->flags & CONTIGUOUS)) 
    {    sprintf(buf,"Parameter %s is not contiguous in lapack_dge.%s",obname, funname);
        ErrorReturn(buf);
        return 0;
    }
    if (!(((PyArrayObject *)ob)->descr->type_num == t))
    {    sprintf(buf,"Parameter %s is not of type %s in lapack_lite.%s",obname,tname, funname);
        ErrorReturn(buf);
        return 0;
    }
    return 1;
}

#define LDATA(p) ((long int *) (((PyArrayObject *)p)->data))
#define CHDATA(p) ((char *) (((PyArrayObject *)p)->data))
#define SHDATA(p) ((short int *) (((PyArrayObject *)p)->data))
#define DDATA(p) ((double *) (((PyArrayObject *)p)->data))
#define FDATA(p) ((float *) (((PyArrayObject *)p)->data))
#define CDATA(p) ((f2c_complex *) (((PyArrayObject *)p)->data))
#define ZDATA(p) ((f2c_doublecomplex *) (((PyArrayObject *)p)->data))




static PyObject *lapack_lite_dgeev(PyObject *self, PyObject *args)
{
int  lapack_lite_status__;
char jobvl;
char jobvr;
long int n;
PyObject *a;
long int lda;
PyObject *wr;
PyObject *wi;
PyObject *vl;
long int ldvl;
PyObject *vr;
long int ldvr;
PyObject *work;
long int lwork;
long int info;
TRY(PyArg_ParseTuple(args,"cclOlOOOlOlOll",&jobvl,&jobvr,&n,&a,&lda,&wr,&wi,&vl,&ldvl,&vr,&ldvr,&work,&lwork,&info));

TRY(lapack_lite_CheckObject(a,PyArray_DOUBLE,"a","PyArray_DOUBLE","dgeev")); 
TRY(lapack_lite_CheckObject(wr,PyArray_DOUBLE,"wr","PyArray_DOUBLE","dgeev")); 
TRY(lapack_lite_CheckObject(wi,PyArray_DOUBLE,"wi","PyArray_DOUBLE","dgeev")); 
TRY(lapack_lite_CheckObject(vl,PyArray_DOUBLE,"vl","PyArray_DOUBLE","dgeev")); 
TRY(lapack_lite_CheckObject(vr,PyArray_DOUBLE,"vr","PyArray_DOUBLE","dgeev")); 
TRY(lapack_lite_CheckObject(work,PyArray_DOUBLE,"work","PyArray_DOUBLE","dgeev")); 


#if defined(NO_APPEND_FORTRAN)
lapack_lite_status__ = dgeev(&jobvl,&jobvr,&n,DDATA(a),&lda,DDATA(wr),DDATA(wi),DDATA(vl),&ldvl,DDATA(vr),&ldvr,DDATA(work),&lwork,&info);
#else
lapack_lite_status__ = dgeev_(&jobvl,&jobvr,&n,DDATA(a),&lda,DDATA(wr),DDATA(wi),DDATA(vl),&ldvl,DDATA(vr),&ldvr,DDATA(work),&lwork,&info);
#endif

return Py_BuildValue("{s:l,s:c,s:c,s:l,s:l,s:l,s:l,s:l,s:l}","dgeev_",lapack_lite_status__,"jobvl",jobvl,"jobvr",jobvr,"n",n,"lda",lda,"ldvl",ldvl,"ldvr",ldvr,"lwork",lwork,"info",info);
}





static PyObject *lapack_lite_dgelss(PyObject *self, PyObject *args)
{
int  lapack_lite_status__;
long int m;
long int n;
long int nrhs;
PyObject *a;
long int lda;
PyObject *b;
long int ldb;
PyObject *s;
double rcond;
long int rank;
PyObject *work;
long int lwork;
long int info;
TRY(PyArg_ParseTuple(args,"lllOlOlOdlOll",&m,&n,&nrhs,&a,&lda,&b,&ldb,&s,&rcond,&rank,&work,&lwork,&info));

TRY(lapack_lite_CheckObject(a,PyArray_DOUBLE,"a","PyArray_DOUBLE","dgelss")); 
TRY(lapack_lite_CheckObject(b,PyArray_DOUBLE,"b","PyArray_DOUBLE","dgelss")); 
TRY(lapack_lite_CheckObject(s,PyArray_DOUBLE,"s","PyArray_DOUBLE","dgelss")); 
TRY(lapack_lite_CheckObject(work,PyArray_DOUBLE,"work","PyArray_DOUBLE","dgelss")); 


#if defined(NO_APPEND_FORTRAN)
lapack_lite_status__ = dgelss(&m,&n,&nrhs,DDATA(a),&lda,DDATA(b),&ldb,DDATA(s),&rcond,&rank,DDATA(work),&lwork,&info);
#else
lapack_lite_status__ = dgelss_(&m,&n,&nrhs,DDATA(a),&lda,DDATA(b),&ldb,DDATA(s),&rcond,&rank,DDATA(work),&lwork,&info);
#endif

return Py_BuildValue("{s:l,s:l,s:l,s:l,s:l,s:l,s:d,s:l,s:l,s:l}","dgelss_",lapack_lite_status__,"m",m,"n",n,"nrhs",nrhs,"lda",lda,"ldb",ldb,"rcond",rcond,"rank",rank,"lwork",lwork,"info",info);
}





static PyObject *lapack_lite_dgesv(PyObject *self, PyObject *args)
{
int  lapack_lite_status__;
long int n;
long int nrhs;
PyObject *a;
long int lda;
PyObject *ipiv;
PyObject *b;
long int ldb;
long int info;
TRY(PyArg_ParseTuple(args,"llOlOOll",&n,&nrhs,&a,&lda,&ipiv,&b,&ldb,&info));

TRY(lapack_lite_CheckObject(a,PyArray_DOUBLE,"a","PyArray_DOUBLE","dgesv")); 
TRY(lapack_lite_CheckObject(ipiv,PyArray_LONG,"ipiv","PyArray_LONG","dgesv")); 
TRY(lapack_lite_CheckObject(b,PyArray_DOUBLE,"b","PyArray_DOUBLE","dgesv")); 


#if defined(NO_APPEND_FORTRAN)
lapack_lite_status__ = dgesv(&n,&nrhs,DDATA(a),&lda,LDATA(ipiv),DDATA(b),&ldb,&info);
#else
lapack_lite_status__ = dgesv_(&n,&nrhs,DDATA(a),&lda,LDATA(ipiv),DDATA(b),&ldb,&info);
#endif

return Py_BuildValue("{s:l,s:l,s:l,s:l,s:l,s:l}","dgesv_",lapack_lite_status__,"n",n,"nrhs",nrhs,"lda",lda,"ldb",ldb,"info",info);
}





static PyObject *lapack_lite_dgesvd(PyObject *self, PyObject *args)
{
int  lapack_lite_status__;
char jobu;
char jobvt;
long int m;
long int n;
PyObject *a;
long int lda;
PyObject *s;
PyObject *u;
long int ldu;
PyObject *vt;
long int ldvt;
PyObject *work;
long int lwork;
long int info;
TRY(PyArg_ParseTuple(args,"ccllOlOOlOlOll",&jobu,&jobvt,&m,&n,&a,&lda,&s,&u,&ldu,&vt,&ldvt,&work,&lwork,&info));

TRY(lapack_lite_CheckObject(a,PyArray_DOUBLE,"a","PyArray_DOUBLE","dgesvd")); 
TRY(lapack_lite_CheckObject(s,PyArray_DOUBLE,"s","PyArray_DOUBLE","dgesvd")); 
TRY(lapack_lite_CheckObject(u,PyArray_DOUBLE,"u","PyArray_DOUBLE","dgesvd")); 
TRY(lapack_lite_CheckObject(vt,PyArray_DOUBLE,"vt","PyArray_DOUBLE","dgesvd")); 
TRY(lapack_lite_CheckObject(work,PyArray_DOUBLE,"work","PyArray_DOUBLE","dgesvd")); 


#if defined(NO_APPEND_FORTRAN)
lapack_lite_status__ = dgesvd(&jobu,&jobvt,&m,&n,DDATA(a),&lda,DDATA(s),DDATA(u),&ldu,DDATA(vt),&ldvt,DDATA(work),&lwork,&info);
#else
lapack_lite_status__ = dgesvd_(&jobu,&jobvt,&m,&n,DDATA(a),&lda,DDATA(s),DDATA(u),&ldu,DDATA(vt),&ldvt,DDATA(work),&lwork,&info);
#endif

return Py_BuildValue("{s:l,s:c,s:c,s:l,s:l,s:l,s:l,s:l,s:l,s:l}","dgesvd_",lapack_lite_status__,"jobu",jobu,"jobvt",jobvt,"m",m,"n",n,"lda",lda,"ldu",ldu,"ldvt",ldvt,"lwork",lwork,"info",info);
}



static PyObject *lapack_lite_dgetrf(PyObject *self, PyObject *args)
{
int  lapack_lite_status__;
long int m;
long int n;
PyObject *a;
long int lda;
PyObject *ipiv;
long int info;
TRY(PyArg_ParseTuple(args,"llOlOl",&m,&n,&a,&lda,&ipiv,&info));

TRY(lapack_lite_CheckObject(a,PyArray_DOUBLE,"a","PyArray_DOUBLE","dgetrf")); 
TRY(lapack_lite_CheckObject(ipiv,PyArray_LONG,"ipiv","PyArray_LONG","dgetrf")); 


#if defined(NO_APPEND_FORTRAN)
lapack_lite_status__ = dgetrf(&m,&n,DDATA(a),&lda,LDATA(ipiv),&info);
#else
lapack_lite_status__ = dgetrf_(&m,&n,DDATA(a),&lda,LDATA(ipiv),&info);
#endif

return Py_BuildValue("{s:l,s:l,s:l,s:l,s:l}","dgetrf_",lapack_lite_status__,"m",m,"n",n,"lda",lda,"info",info);
}




static PyObject *lapack_lite_zgeev(PyObject *self, PyObject *args)
{
int  lapack_lite_status__;
char jobvl;
char jobvr;
long int n;
PyObject *a;
long int lda;
PyObject *w;
PyObject *vl;
long int ldvl;
PyObject *vr;
long int ldvr;
PyObject *work;
long int lwork;
PyObject *rwork;
long int info;
TRY(PyArg_ParseTuple(args,"cclOlOOlOlOlOl",&jobvl,&jobvr,&n,&a,&lda,&w,&vl,&ldvl,&vr,&ldvr,&work,&lwork,&rwork,&info));

TRY(lapack_lite_CheckObject(a,PyArray_CDOUBLE,"a","PyArray_CDOUBLE","zgeev")); 
TRY(lapack_lite_CheckObject(w,PyArray_CDOUBLE,"w","PyArray_CDOUBLE","zgeev")); 
TRY(lapack_lite_CheckObject(vl,PyArray_CDOUBLE,"vl","PyArray_CDOUBLE","zgeev")); 
TRY(lapack_lite_CheckObject(vr,PyArray_CDOUBLE,"vr","PyArray_CDOUBLE","zgeev")); 
TRY(lapack_lite_CheckObject(work,PyArray_CDOUBLE,"work","PyArray_CDOUBLE","zgeev")); 
TRY(lapack_lite_CheckObject(rwork,PyArray_DOUBLE,"rwork","PyArray_DOUBLE","zgeev")); 


#if defined(NO_APPEND_FORTRAN)
lapack_lite_status__ = zgeev(&jobvl,&jobvr,&n,ZDATA(a),&lda,ZDATA(w),ZDATA(vl),&ldvl,ZDATA(vr),&ldvr,ZDATA(work),&lwork,DDATA(rwork),&info);
#else
lapack_lite_status__ = zgeev_(&jobvl,&jobvr,&n,ZDATA(a),&lda,ZDATA(w),ZDATA(vl),&ldvl,ZDATA(vr),&ldvr,ZDATA(work),&lwork,DDATA(rwork),&info);
#endif

return Py_BuildValue("{s:l,s:c,s:c,s:l,s:l,s:l,s:l,s:l,s:l}","zgeev_",lapack_lite_status__,"jobvl",jobvl,"jobvr",jobvr,"n",n,"lda",lda,"ldvl",ldvl,"ldvr",ldvr,"lwork",lwork,"info",info);
}




static PyObject *lapack_lite_zgelss(PyObject *self, PyObject *args)
{
int  lapack_lite_status__;
long int m;
long int n;
long int nrhs;
PyObject *a;
long int lda;
PyObject *b;
long int ldb;
PyObject *s;
double rcond;
long int rank;
PyObject *work;
long int lwork;
PyObject *rwork;
long int info;
TRY(PyArg_ParseTuple(args,"lllOlOlOdlOlOl",&m,&n,&nrhs,&a,&lda,&b,&ldb,&s,&rcond,&rank,&work,&lwork,&rwork,&info));

TRY(lapack_lite_CheckObject(a,PyArray_CDOUBLE,"a","PyArray_CDOUBLE","zgelss")); 
TRY(lapack_lite_CheckObject(b,PyArray_CDOUBLE,"b","PyArray_CDOUBLE","zgelss")); 
TRY(lapack_lite_CheckObject(s,PyArray_DOUBLE,"s","PyArray_DOUBLE","zgelss")); 
TRY(lapack_lite_CheckObject(work,PyArray_CDOUBLE,"work","PyArray_CDOUBLE","zgelss")); 
TRY(lapack_lite_CheckObject(rwork,PyArray_DOUBLE,"rwork","PyArray_DOUBLE","zgelss")); 


#if defined(NO_APPEND_FORTRAN)
lapack_lite_status__ = zgelss(&m,&n,&nrhs,ZDATA(a),&lda,ZDATA(b),&ldb,DDATA(s),&rcond,&rank,ZDATA(work),&lwork,DDATA(rwork),&info);
#else
lapack_lite_status__ = zgelss_(&m,&n,&nrhs,ZDATA(a),&lda,ZDATA(b),&ldb,DDATA(s),&rcond,&rank,ZDATA(work),&lwork,DDATA(rwork),&info);
#endif

return Py_BuildValue("{s:l,s:l,s:l,s:l,s:l,s:l,s:l,s:l,s:l}","zgelss_",lapack_lite_status__,"m",m,"n",n,"nrhs",nrhs,"lda",lda,"ldb",ldb,"rank",rank,"lwork",lwork,"info",info);
}



static PyObject *lapack_lite_zgesv(PyObject *self, PyObject *args)
{
int  lapack_lite_status__;
long int n;
long int nrhs;
PyObject *a;
long int lda;
PyObject *ipiv;
PyObject *b;
long int ldb;
long int info;
TRY(PyArg_ParseTuple(args,"llOlOOll",&n,&nrhs,&a,&lda,&ipiv,&b,&ldb,&info));

TRY(lapack_lite_CheckObject(a,PyArray_CDOUBLE,"a","PyArray_CDOUBLE","zgesv")); 
TRY(lapack_lite_CheckObject(ipiv,PyArray_LONG,"ipiv","PyArray_LONG","zgesv")); 
TRY(lapack_lite_CheckObject(b,PyArray_CDOUBLE,"b","PyArray_CDOUBLE","zgesv")); 


#if defined(NO_APPEND_FORTRAN)
lapack_lite_status__ = zgesv(&n,&nrhs,ZDATA(a),&lda,LDATA(ipiv),ZDATA(b),&ldb,&info);
#else
lapack_lite_status__ = zgesv_(&n,&nrhs,ZDATA(a),&lda,LDATA(ipiv),ZDATA(b),&ldb,&info);
#endif

return Py_BuildValue("{s:l,s:l,s:l,s:l,s:l,s:l}","zgesv_",lapack_lite_status__,"n",n,"nrhs",nrhs,"lda",lda,"ldb",ldb,"info",info);
}





static PyObject *lapack_lite_zgesvd(PyObject *self, PyObject *args)
{
int  lapack_lite_status__;
char jobu;
char jobvt;
long int m;
long int n;
PyObject *a;
long int lda;
PyObject *s;
PyObject *u;
long int ldu;
PyObject *vt;
long int ldvt;
PyObject *work;
long int lwork;
PyObject *rwork;
long int info;
TRY(PyArg_ParseTuple(args,"ccllOlOOlOlOlOl",&jobu,&jobvt,&m,&n,&a,&lda,&s,&u,&ldu,&vt,&ldvt,&work,&lwork,&rwork,&info));

TRY(lapack_lite_CheckObject(a,PyArray_CDOUBLE,"a","PyArray_CDOUBLE","zgesvd")); 
TRY(lapack_lite_CheckObject(s,PyArray_DOUBLE,"s","PyArray_DOUBLE","zgesvd")); 
TRY(lapack_lite_CheckObject(u,PyArray_CDOUBLE,"u","PyArray_CDOUBLE","zgesvd")); 
TRY(lapack_lite_CheckObject(vt,PyArray_CDOUBLE,"vt","PyArray_CDOUBLE","zgesvd")); 
TRY(lapack_lite_CheckObject(work,PyArray_CDOUBLE,"work","PyArray_CDOUBLE","zgesvd")); 
TRY(lapack_lite_CheckObject(rwork,PyArray_DOUBLE,"rwork","PyArray_DOUBLE","zgesvd")); 


#if defined(NO_APPEND_FORTRAN)
lapack_lite_status__ = zgesvd(&jobu,&jobvt,&m,&n,ZDATA(a),&lda,DDATA(s),ZDATA(u),&ldu,ZDATA(vt),&ldvt,ZDATA(work),&lwork,DDATA(rwork),&info);
#else
lapack_lite_status__ = zgesvd_(&jobu,&jobvt,&m,&n,ZDATA(a),&lda,DDATA(s),ZDATA(u),&ldu,ZDATA(vt),&ldvt,ZDATA(work),&lwork,DDATA(rwork),&info);
#endif

return Py_BuildValue("{s:l,s:c,s:c,s:l,s:l,s:l,s:l,s:l,s:l,s:l}","zgesvd_",lapack_lite_status__,"jobu",jobu,"jobvt",jobvt,"m",m,"n",n,"lda",lda,"ldu",ldu,"ldvt",ldvt,"lwork",lwork,"info",info);
}




static PyObject *lapack_lite_zgetrf(PyObject *self, PyObject *args)
{
int  lapack_lite_status__;
long int m;
long int n;
PyObject *a;
long int lda;
PyObject *ipiv;
long int info;
TRY(PyArg_ParseTuple(args,"llOlOl",&m,&n,&a,&lda,&ipiv,&info));

TRY(lapack_lite_CheckObject(a,PyArray_CDOUBLE,"a","PyArray_CDOUBLE","zgetrf")); 
TRY(lapack_lite_CheckObject(ipiv,PyArray_LONG,"ipiv","PyArray_LONG","zgetrf")); 


#if defined(NO_APPEND_FORTRAN)
lapack_lite_status__ = zgetrf(&m,&n,ZDATA(a),&lda,LDATA(ipiv),&info);
#else
lapack_lite_status__ = zgetrf_(&m,&n,ZDATA(a),&lda,LDATA(ipiv),&info);
#endif

return Py_BuildValue("{s:l,s:l,s:l,s:l,s:l}","zgetrf_",lapack_lite_status__,"m",m,"n",n,"lda",lda,"info",info);
}




static struct PyMethodDef lapack_lite_module_methods[] = {
{"dgeev",lapack_lite_dgeev,1},
{"dgelss",lapack_lite_dgelss,1},
{"dgesv",lapack_lite_dgesv,1},
{"dgesvd",lapack_lite_dgesvd,1},
{"dgetrf",lapack_lite_dgetrf,1},
{"zgeev",lapack_lite_zgeev,1},
{"zgelss",lapack_lite_zgelss,1},
{"zgesv",lapack_lite_zgesv,1},
{"zgesvd",lapack_lite_zgesvd,1},
{"zgetrf",lapack_lite_zgetrf,1},
{ NULL,NULL,0}
};

static PyObject *lapack_liteError;

void initlapack_lite()
{ PyObject *m,*d;
m = Py_InitModule("lapack_lite",lapack_lite_module_methods);
import_array();
d = PyModule_GetDict(m);
ErrorObject = LapackError();
PyDict_SetItemString(d,"LapackError",ErrorObject);
}