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pythonmod.c
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pythonmod.c
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#include "lpsolvecaller.h"
#define maxArgs 10
#if 1
/* represent arrays via lists */
# define MyPyArray_Size PyList_Size
# define MyPyArray_New PyList_New
# define MyPyArray_SET_ITEM PyList_SET_ITEM
# define MyPyArray_Resize(Array, Size) { /* Printf("PyList_Size(*Array) was %d, resizing to %d\n", PyList_Size(*Array), Size); */ while ((PyList_Size(*Array) < Size) && (PyList_Append(*Array, Py_None) == 0)); /* Printf("PyList_Size(*Array) becomes %d\n", PyList_Size(*Array)); */ }
#else
/* represent arrays via tuples */
# define MyPyArray_Size PyTuple_Size
# define MyPyArray_New PyTuple_New
# define MyPyArray_SET_ITEM PyTuple_SET_ITEM
# define MyPyArray_Resize _PyTuple_Resize
#endif
PyObject *Lprec_ErrorObject;
int Lprec_errorflag;
#if defined NUMPY
static char HasNumpy;
#endif
#if PYTHON_API_VERSION <= 1012
/* Python 2.4 and lower don't know Py_ssize_t so int must be used */
# define Py_ssize_t int
#endif
extern PyObject *lpsolve(LprecObject *self, PyObject *args);
/* List of functions defined in the module */
/* This information is shown in Python via the command help(lpsolve) */
static char lpsolve_doc[] =
"lpsolve('functionname', arg1, arg2, ...) -> execute lpsolve functionname with args";
static PyMethodDef lpsolve_methods[] = {
{strdrivername, (PyCFunction) lpsolve, METH_VARARGS, lpsolve_doc},
{NULL, NULL} /* sentinel */
};
/* Initialization function for the module (*must* be called initxx) */
DL_EXPORT(void)
initlpsolve55(void)
{
PyObject *m, *d;
/* Create the module and add the functions */
m = Py_InitModule("lpsolve55", lpsolve_methods);
#if defined NUMPY
#if 0
/* alternative test if numpy is available */
mod = PyImport_ImportModule("numpy");
if (mod == NULL) {
/* Clear the error state since we are handling the error. */
PyErr_Clear();
/* ... set up for the sans-numpy case. */
}
else {
Py_DECREF(mod);
import_array();
/* ... set up for the with-numpy case. */
}
#endif
if (!(HasNumpy = (_import_array() >= 0))) /* _import_array() is undocumented. Found in the source of numpy that import_array is a macro calling _import_array() and if a negative return value then a error message is given */
PyErr_Clear();
#endif
/* Add some symbolic constants to the module */
d = PyModule_GetDict(m);
#if PYTHON_API_VERSION >= 1007
Lprec_ErrorObject = PyErr_NewException("lpsolve.error", NULL, NULL);
#else
Lprec_ErrorObject = Py_BuildValue("s", "lpsolve.error");
#endif
PyDict_SetItemString(d, "error", Lprec_ErrorObject);
PyDict_SetItemString(d, "LE", PyInt_FromLong(LE));
PyDict_SetItemString(d, "EQ", PyInt_FromLong(EQ));
PyDict_SetItemString(d, "GE", PyInt_FromLong(GE));
PyDict_SetItemString(d, "FR", PyInt_FromLong(FR));
PyDict_SetItemString(d, "SCALE_NONE", PyInt_FromLong(SCALE_NONE));
PyDict_SetItemString(d, "SCALE_EXTREME", PyInt_FromLong(SCALE_EXTREME));
PyDict_SetItemString(d, "SCALE_RANGE", PyInt_FromLong(SCALE_RANGE));
PyDict_SetItemString(d, "SCALE_MEAN", PyInt_FromLong(SCALE_MEAN));
PyDict_SetItemString(d, "SCALE_GEOMETRIC", PyInt_FromLong(SCALE_GEOMETRIC));
PyDict_SetItemString(d, "SCALE_CURTISREID", PyInt_FromLong(SCALE_CURTISREID));
PyDict_SetItemString(d, "SCALE_QUADRATIC", PyInt_FromLong(SCALE_QUADRATIC));
PyDict_SetItemString(d, "SCALE_LOGARITHMIC", PyInt_FromLong(SCALE_LOGARITHMIC));
PyDict_SetItemString(d, "SCALE_USERWEIGHT", PyInt_FromLong(SCALE_USERWEIGHT));
PyDict_SetItemString(d, "SCALE_POWER2", PyInt_FromLong(SCALE_POWER2));
PyDict_SetItemString(d, "SCALE_EQUILIBRATE", PyInt_FromLong(SCALE_EQUILIBRATE));
PyDict_SetItemString(d, "SCALE_INTEGERS", PyInt_FromLong(SCALE_INTEGERS));
PyDict_SetItemString(d, "SCALE_DYNUPDATE", PyInt_FromLong(SCALE_DYNUPDATE));
PyDict_SetItemString(d, "SCALE_ROWSONLY", PyInt_FromLong(SCALE_ROWSONLY));
PyDict_SetItemString(d, "SCALE_COLSONLY", PyInt_FromLong(SCALE_COLSONLY));
PyDict_SetItemString(d, "IMPROVE_NONE", PyInt_FromLong(IMPROVE_NONE));
PyDict_SetItemString(d, "IMPROVE_SOLUTION", PyInt_FromLong(IMPROVE_SOLUTION));
PyDict_SetItemString(d, "IMPROVE_DUALFEAS", PyInt_FromLong(IMPROVE_DUALFEAS));
PyDict_SetItemString(d, "IMPROVE_THETAGAP", PyInt_FromLong(IMPROVE_THETAGAP));
PyDict_SetItemString(d, "IMPROVE_BBSIMPLEX", PyInt_FromLong(IMPROVE_BBSIMPLEX));
PyDict_SetItemString(d, "PRICER_FIRSTINDEX", PyInt_FromLong(PRICER_FIRSTINDEX));
PyDict_SetItemString(d, "PRICER_DANTZIG", PyInt_FromLong(PRICER_DANTZIG));
PyDict_SetItemString(d, "PRICER_DEVEX", PyInt_FromLong(PRICER_DEVEX));
PyDict_SetItemString(d, "PRICER_STEEPESTEDGE", PyInt_FromLong(PRICER_STEEPESTEDGE));
PyDict_SetItemString(d, "PRICE_PRIMALFALLBACK", PyInt_FromLong(PRICE_PRIMALFALLBACK));
PyDict_SetItemString(d, "PRICE_MULTIPLE", PyInt_FromLong(PRICE_MULTIPLE));
PyDict_SetItemString(d, "PRICE_PARTIAL", PyInt_FromLong(PRICE_PARTIAL));
PyDict_SetItemString(d, "PRICE_ADAPTIVE", PyInt_FromLong(PRICE_ADAPTIVE));
PyDict_SetItemString(d, "PRICE_RANDOMIZE", PyInt_FromLong(PRICE_RANDOMIZE));
PyDict_SetItemString(d, "PRICE_AUTOPARTIAL", PyInt_FromLong(PRICE_AUTOPARTIAL));
PyDict_SetItemString(d, "PRICE_LOOPLEFT", PyInt_FromLong(PRICE_LOOPLEFT));
PyDict_SetItemString(d, "PRICE_LOOPALTERNATE", PyInt_FromLong(PRICE_LOOPALTERNATE));
PyDict_SetItemString(d, "PRICE_HARRISTWOPASS", PyInt_FromLong(PRICE_HARRISTWOPASS));
PyDict_SetItemString(d, "PRICE_TRUENORMINIT", PyInt_FromLong(PRICE_TRUENORMINIT));
PyDict_SetItemString(d, "PRESOLVE_NONE", PyInt_FromLong(PRESOLVE_NONE));
PyDict_SetItemString(d, "PRESOLVE_ROWS", PyInt_FromLong(PRESOLVE_ROWS));
PyDict_SetItemString(d, "PRESOLVE_COLS", PyInt_FromLong(PRESOLVE_COLS));
PyDict_SetItemString(d, "PRESOLVE_LINDEP", PyInt_FromLong(PRESOLVE_LINDEP));
PyDict_SetItemString(d, "PRESOLVE_SOS", PyInt_FromLong(PRESOLVE_SOS));
PyDict_SetItemString(d, "PRESOLVE_REDUCEMIP", PyInt_FromLong(PRESOLVE_REDUCEMIP));
PyDict_SetItemString(d, "PRESOLVE_KNAPSACK", PyInt_FromLong(PRESOLVE_KNAPSACK));
PyDict_SetItemString(d, "PRESOLVE_ELIMEQ2", PyInt_FromLong(PRESOLVE_ELIMEQ2));
PyDict_SetItemString(d, "PRESOLVE_IMPLIEDFREE", PyInt_FromLong(PRESOLVE_IMPLIEDFREE));
PyDict_SetItemString(d, "PRESOLVE_REDUCEGCD", PyInt_FromLong(PRESOLVE_REDUCEGCD));
PyDict_SetItemString(d, "PRESOLVE_PROBEFIX", PyInt_FromLong(PRESOLVE_PROBEFIX));
PyDict_SetItemString(d, "PRESOLVE_PROBEREDUCE", PyInt_FromLong(PRESOLVE_PROBEREDUCE));
PyDict_SetItemString(d, "PRESOLVE_ROWDOMINATE", PyInt_FromLong(PRESOLVE_ROWDOMINATE));
PyDict_SetItemString(d, "PRESOLVE_COLDOMINATE", PyInt_FromLong(PRESOLVE_COLDOMINATE));
PyDict_SetItemString(d, "PRESOLVE_MERGEROWS", PyInt_FromLong(PRESOLVE_MERGEROWS));
PyDict_SetItemString(d, "PRESOLVE_IMPLIEDSLK", PyInt_FromLong(PRESOLVE_IMPLIEDSLK));
PyDict_SetItemString(d, "PRESOLVE_COLFIXDUAL", PyInt_FromLong(PRESOLVE_COLFIXDUAL));
PyDict_SetItemString(d, "PRESOLVE_BOUNDS", PyInt_FromLong(PRESOLVE_BOUNDS));
PyDict_SetItemString(d, "PRESOLVE_DUALS", PyInt_FromLong(PRESOLVE_DUALS));
PyDict_SetItemString(d, "PRESOLVE_SENSDUALS", PyInt_FromLong(PRESOLVE_SENSDUALS));
PyDict_SetItemString(d, "ANTIDEGEN_NONE", PyInt_FromLong(ANTIDEGEN_NONE));
PyDict_SetItemString(d, "ANTIDEGEN_FIXEDVARS", PyInt_FromLong(ANTIDEGEN_FIXEDVARS));
PyDict_SetItemString(d, "ANTIDEGEN_COLUMNCHECK", PyInt_FromLong(ANTIDEGEN_COLUMNCHECK));
PyDict_SetItemString(d, "ANTIDEGEN_STALLING", PyInt_FromLong(ANTIDEGEN_STALLING));
PyDict_SetItemString(d, "ANTIDEGEN_NUMFAILURE", PyInt_FromLong(ANTIDEGEN_NUMFAILURE));
PyDict_SetItemString(d, "ANTIDEGEN_LOSTFEAS", PyInt_FromLong(ANTIDEGEN_LOSTFEAS));
PyDict_SetItemString(d, "ANTIDEGEN_INFEASIBLE", PyInt_FromLong(ANTIDEGEN_INFEASIBLE));
PyDict_SetItemString(d, "ANTIDEGEN_DYNAMIC", PyInt_FromLong(ANTIDEGEN_DYNAMIC));
PyDict_SetItemString(d, "ANTIDEGEN_DURINGBB", PyInt_FromLong(ANTIDEGEN_DURINGBB));
PyDict_SetItemString(d, "ANTIDEGEN_RHSPERTURB", PyInt_FromLong(ANTIDEGEN_RHSPERTURB));
PyDict_SetItemString(d, "ANTIDEGEN_BOUNDFLIP", PyInt_FromLong(ANTIDEGEN_BOUNDFLIP));
PyDict_SetItemString(d, "CRASH_NONE", PyInt_FromLong(CRASH_NONE));
PyDict_SetItemString(d, "CRASH_MOSTFEASIBLE", PyInt_FromLong(CRASH_MOSTFEASIBLE));
PyDict_SetItemString(d, "CRASH_LEASTDEGENERATE", PyInt_FromLong(CRASH_LEASTDEGENERATE));
PyDict_SetItemString(d, "SIMPLEX_PRIMAL_PRIMAL", PyInt_FromLong(SIMPLEX_PRIMAL_PRIMAL));
PyDict_SetItemString(d, "SIMPLEX_DUAL_PRIMAL", PyInt_FromLong(SIMPLEX_DUAL_PRIMAL));
PyDict_SetItemString(d, "SIMPLEX_PRIMAL_DUAL", PyInt_FromLong(SIMPLEX_PRIMAL_DUAL));
PyDict_SetItemString(d, "SIMPLEX_DUAL_DUAL", PyInt_FromLong(SIMPLEX_DUAL_DUAL));
PyDict_SetItemString(d, "NODE_FIRSTSELECT", PyInt_FromLong(NODE_FIRSTSELECT));
PyDict_SetItemString(d, "NODE_GAPSELECT", PyInt_FromLong(NODE_GAPSELECT));
PyDict_SetItemString(d, "NODE_RANGESELECT", PyInt_FromLong(NODE_RANGESELECT));
PyDict_SetItemString(d, "NODE_FRACTIONSELECT", PyInt_FromLong(NODE_FRACTIONSELECT));
PyDict_SetItemString(d, "NODE_PSEUDOCOSTSELECT", PyInt_FromLong(NODE_PSEUDOCOSTSELECT));
PyDict_SetItemString(d, "NODE_PSEUDONONINTSELECT", PyInt_FromLong(NODE_PSEUDONONINTSELECT));
PyDict_SetItemString(d, "NODE_PSEUDORATIOSELECT", PyInt_FromLong(NODE_PSEUDORATIOSELECT));
PyDict_SetItemString(d, "NODE_USERSELECT", PyInt_FromLong(NODE_USERSELECT));
PyDict_SetItemString(d, "NODE_WEIGHTREVERSEMODE", PyInt_FromLong(NODE_WEIGHTREVERSEMODE));
PyDict_SetItemString(d, "NODE_BRANCHREVERSEMODE", PyInt_FromLong(NODE_BRANCHREVERSEMODE));
PyDict_SetItemString(d, "NODE_GREEDYMODE", PyInt_FromLong(NODE_GREEDYMODE));
PyDict_SetItemString(d, "NODE_PSEUDOCOSTMODE", PyInt_FromLong(NODE_PSEUDOCOSTMODE));
PyDict_SetItemString(d, "NODE_DEPTHFIRSTMODE", PyInt_FromLong(NODE_DEPTHFIRSTMODE));
PyDict_SetItemString(d, "NODE_RANDOMIZEMODE", PyInt_FromLong(NODE_RANDOMIZEMODE));
PyDict_SetItemString(d, "NODE_GUBMODE", PyInt_FromLong(NODE_GUBMODE));
PyDict_SetItemString(d, "NODE_DYNAMICMODE", PyInt_FromLong(NODE_DYNAMICMODE));
PyDict_SetItemString(d, "NODE_RESTARTMODE", PyInt_FromLong(NODE_RESTARTMODE));
PyDict_SetItemString(d, "NODE_BREADTHFIRSTMODE", PyInt_FromLong(NODE_BREADTHFIRSTMODE));
PyDict_SetItemString(d, "NODE_AUTOORDER", PyInt_FromLong(NODE_AUTOORDER));
PyDict_SetItemString(d, "NODE_RCOSTFIXING", PyInt_FromLong(NODE_RCOSTFIXING));
PyDict_SetItemString(d, "NODE_STRONGINIT", PyInt_FromLong(NODE_STRONGINIT));
PyDict_SetItemString(d, "NOMEMORY", PyInt_FromLong(NOMEMORY));
PyDict_SetItemString(d, "OPTIMAL", PyInt_FromLong(OPTIMAL));
PyDict_SetItemString(d, "SUBOPTIMAL", PyInt_FromLong(SUBOPTIMAL));
PyDict_SetItemString(d, "INFEASIBLE", PyInt_FromLong(INFEASIBLE));
PyDict_SetItemString(d, "UNBOUNDED", PyInt_FromLong(UNBOUNDED));
PyDict_SetItemString(d, "DEGENERATE", PyInt_FromLong(DEGENERATE));
PyDict_SetItemString(d, "NUMFAILURE", PyInt_FromLong(NUMFAILURE));
PyDict_SetItemString(d, "USERABORT", PyInt_FromLong(USERABORT));
PyDict_SetItemString(d, "TIMEOUT", PyInt_FromLong(TIMEOUT));
PyDict_SetItemString(d, "PRESOLVED", PyInt_FromLong(PRESOLVED));
PyDict_SetItemString(d, "PROCFAIL", PyInt_FromLong(PROCFAIL));
PyDict_SetItemString(d, "PROCBREAK", PyInt_FromLong(PROCBREAK));
PyDict_SetItemString(d, "FEASFOUND", PyInt_FromLong(FEASFOUND));
PyDict_SetItemString(d, "NOFEASFOUND", PyInt_FromLong(NOFEASFOUND));
PyDict_SetItemString(d, "BRANCH_CEILING", PyInt_FromLong(BRANCH_CEILING));
PyDict_SetItemString(d, "BRANCH_FLOOR", PyInt_FromLong(BRANCH_FLOOR));
PyDict_SetItemString(d, "BRANCH_AUTOMATIC", PyInt_FromLong(BRANCH_AUTOMATIC));
PyDict_SetItemString(d, "BRANCH_DEFAULT", PyInt_FromLong(BRANCH_DEFAULT));
PyDict_SetItemString(d, "MSG_PRESOLVE", PyInt_FromLong(MSG_PRESOLVE));
PyDict_SetItemString(d, "MSG_LPFEASIBLE", PyInt_FromLong(MSG_LPFEASIBLE));
PyDict_SetItemString(d, "MSG_LPOPTIMAL", PyInt_FromLong(MSG_LPOPTIMAL));
PyDict_SetItemString(d, "MSG_MILPEQUAL", PyInt_FromLong(MSG_MILPEQUAL));
PyDict_SetItemString(d, "MSG_MILPFEASIBLE", PyInt_FromLong(MSG_MILPFEASIBLE));
PyDict_SetItemString(d, "MSG_MILPBETTER", PyInt_FromLong(MSG_MILPBETTER));
PyDict_SetItemString(d, "NEUTRAL", PyInt_FromLong(NEUTRAL));
PyDict_SetItemString(d, "CRITICAL", PyInt_FromLong(CRITICAL));
PyDict_SetItemString(d, "SEVERE", PyInt_FromLong(SEVERE));
PyDict_SetItemString(d, "IMPORTANT", PyInt_FromLong(IMPORTANT));
PyDict_SetItemString(d, "NORMAL", PyInt_FromLong(NORMAL));
PyDict_SetItemString(d, "DETAILED", PyInt_FromLong(DETAILED));
PyDict_SetItemString(d, "FULL", PyInt_FromLong(FULL));
PyDict_SetItemString(d, "Infinite", PyFloat_FromDouble(DEF_INFINITE));
}
void Printf(char *format, ...)
{
va_list ap;
static char buf[4096];
va_start(ap, format);
vsnprintf(buf, sizeof(buf), format, ap);
va_end(ap);
/* printf("%s", buf); */
PySys_WriteStdout("%s", buf);
}
int ErrMsgTxt(structlpsolvecaller *lpsolvecaller, char *str)
{
PyErr_SetString(Lprec_ErrorObject, str);
/* Printf("%s\n", str); */
lpsolvecaller->lhs.type = -1;
exitnow(lpsolvecaller);
return(0);
}
void setargs(structlpsolvecaller *lpsolvecaller, LprecObject *self, PyObject *args)
{
PyObject *ar[maxArgs];
int nrhs;
lpsolvecaller->self = self;
lpsolvecaller->args = args;
for(nrhs = (sizeof(ar) / sizeof(*ar)) - 1; nrhs >= 0; nrhs--)
ar[nrhs] = NULL;
PyArg_UnpackTuple(args, strdrivername, 0, sizeof(ar)/sizeof(*ar), &ar[0], &ar[1], &ar[2], &ar[3], &ar[4], &ar[5], &ar[6], &ar[7], &ar[8], &ar[9]);
for(nrhs = (sizeof(ar) / sizeof(*ar)) - 1; (nrhs >= 0) && (ar[nrhs] == NULL); nrhs--);
lpsolvecaller->nrhs = ++nrhs;
lpsolvecaller->lhs.type = 0;
lpsolvecaller->lhs.PyObject = NULL;
lpsolvecaller->nlhs = 99;
}
PyObject *GetpMatrix(structlpsolvecaller *lpsolvecaller, int element)
{
PyObject *ar[maxArgs];
int i;
for(i = (sizeof(ar) / sizeof(*ar)) - 1; i >= 0; i--)
ar[i] = NULL;
PyArg_UnpackTuple(lpsolvecaller->args, strdrivername, 0, sizeof(ar)/sizeof(*ar), &ar[0], &ar[1], &ar[2], &ar[3], &ar[4], &ar[5], &ar[6], &ar[7], &ar[8], &ar[9]);
if((element >= sizeof(ar) / sizeof(*ar)) ||
(ar[element] == NULL)) {
PyErr_Clear();
return(NULL);
}
return(ar[element]);
}
int GetM(structlpsolvecaller *lpsolvecaller, PyObject *arg)
{
int m;
#if defined NUMPY
if ((HasNumpy) && (PyArray_Check(arg))) {
PyArrayObject *array = (PyArrayObject *) arg;
if (array->nd < 2)
m = 1;
else if (array->nd > 2)
m = 0;
else
m = (int) array->dimensions[0];
}
else
#endif
if (PyNumber_Check(arg)) {
m = 1;
}
else {
m = (int) PyObject_Length(arg);
}
return(m);
}
int GetN(structlpsolvecaller *lpsolvecaller, PyObject *arg)
{
int n;
PyObject *item;
#if defined NUMPY
if ((HasNumpy) && (PyArray_Check(arg))) {
PyArrayObject *array = (PyArrayObject *) arg;
if (array->nd < 1)
n = 1;
else if (array->nd > 2)
n = 0;
else
n = (int) array->dimensions[array->nd - 1];
}
else
#endif
if (PyNumber_Check(arg)) {
n = 1;
}
else {
item = PySequence_GetItem(arg, 0);
if (item != NULL) {
if (PyNumber_Check(item)) {
n = 1;
}
else {
n = (int) PyObject_Length(item);
}
Py_DECREF(item);
}
else
n = 0;
}
return(n);
}
/* Function to get a real scalar with error checking */
Double GetRealScalar(structlpsolvecaller *lpsolvecaller, int element)
{
PyObject *item;
Double a = 0.0;
char OK = TRUE;
item = GetpMatrix(lpsolvecaller, element);
if (item == NULL)
OK = FALSE;
else {
if ((GetM(lpsolvecaller, item) != 1) ||
(GetN(lpsolvecaller, item) != 1) ||
(!PyNumber_Check(item)))
OK = FALSE;
else
a = PyFloat_AsDouble(item);
}
if (!OK) {
ErrMsgTxt(lpsolvecaller, "Expecting a scalar argument.");
}
return(a);
}
#if defined NUMPY
# define NUMPY1 \
PyArrayObject *array = NULL; \
int strides0 = 0, strides1 = 0, type_num = 0; \
char IsNumPy = ((HasNumpy) && (PyArray_Check(vector))); \
\
if (IsNumPy) { \
m = GetM(lpsolvecaller, vector); \
n = GetN(lpsolvecaller, vector); \
array = (PyArrayObject *) vector; \
type_num = array->descr->type_num; \
strides0 = (((int) array->nd) <= 0) ? 0 : (int) array->strides[0]; \
strides1 = (((int) array->nd) <= 1) ? 0 : (int) array->strides[1]; \
isvector = TRUE; \
} \
else
# define NUMPY2(var, cast, always) \
if (IsNumPy) { \
switch (type_num) { \
case PyArray_CHAR: \
var = (cast) *(char *)(array->data + i*strides0 + (array->nd == 1 ? 0 : j*strides1)); \
break; \
case PyArray_UBYTE: \
var = (cast) *(unsigned char *)(array->data + i*strides0 + (array->nd == 1 ? 0 : j*strides1)); \
break; \
case PyArray_SHORT: \
var = (cast) *(short *)(array->data + i*strides0 + (array->nd == 1 ? 0 : j*strides1)); \
break; \
case PyArray_INT: \
var = (cast) *(int *)(array->data + i*strides0 + (array->nd == 1 ? 0 : j*strides1)); \
break; \
case PyArray_LONG: \
var = (cast) *(long *)(array->data + i*strides0 + (array->nd == 1 ? 0 : j*strides1)); \
break; \
case PyArray_FLOAT: \
var = (cast) *(float *)(array->data + i*strides0 + (array->nd == 1 ? 0 : j*strides1)); \
break; \
case PyArray_DOUBLE: \
var = (cast) *(double *)(array->data + i*strides0 + (array->nd == 1 ? 0 : j*strides1)); \
break; \
default: \
ErrMsgTxt(lpsolvecaller, "invalid vector (non-numerical item)."); \
break; \
} \
if ((n == 1) || (array->nd == 1) || (always)) \
i++; \
else \
j++; \
} \
else
#else
# define NUMPY1
# define NUMPY2(var, cast, always)
#endif
#define GetVector(lpsolvecaller, element, vec, cast, start, len, exactcount, ret) \
{ \
PyObject *vector, *item; \
int i, j, k, m, n = 1, count = 0; \
char OK = TRUE, isvector; \
\
vector = GetpMatrix(lpsolvecaller, element); \
if (vector == NULL) \
OK = FALSE; \
else { \
NUMPY1 \
if (PyNumber_Check(vector)) { \
m = 1; \
isvector = FALSE; \
} \
else { \
m = (int) PyObject_Length(vector); \
isvector = TRUE; \
} \
\
if ( !((m == 1) || (n == 1)) || \
((m == 1) && (((exactcount) && (len != n)) || ((!exactcount) && (n > len)))) || \
((n == 1) && (((exactcount) && (len != m)) || ((!exactcount) && (m > len))))) { \
PyErr_Clear(); \
ErrMsgTxt(lpsolvecaller, "invalid vector."); \
} \
\
if (n == 1) \
len = m; \
else \
len = n; \
vec += start; \
\
for (i = j = k = 0; k < len; k++) { \
NUMPY2(*(vec++), cast, FALSE) \
{ \
Lprec_errorflag = 0; \
if (isvector) \
item = PySequence_GetItem(vector, k); \
else \
item = vector; \
if ((item == NULL) || (!PyNumber_Check(item))) { \
if ((isvector) && (item != NULL)) { \
Py_DECREF(item); \
} \
ErrMsgTxt(lpsolvecaller, "invalid vector (non-numerical item)."); \
} \
*(vec++) = (cast) PyFloat_AsDouble(item); \
if (isvector) { \
Py_DECREF(item); \
} \
if (Lprec_errorflag) {\
ErrMsgTxt(lpsolvecaller, "invalid vector."); \
} \
} \
} \
} \
\
count = len; \
\
ret = count; \
}
/* Functions to get len elements from a Python vector. */
int GetIntVector(structlpsolvecaller *lpsolvecaller, int element, int *vec, int start, int len, int exactcount)
{
int ret;
GetVector(lpsolvecaller, element, vec, int, start, len, exactcount, ret)
return(ret);
}
int GetRealVector(structlpsolvecaller *lpsolvecaller, int element, Double *vec, int start, int len, int exactcount)
{
int ret;
GetVector(lpsolvecaller, element, vec, Double, start, len, exactcount, ret)
return(ret);
}
/* Function to get max len elements from a Python vector.
Python doesn't know sparse matrixes, so a matrix is converted to sparse */
int GetRealSparseVector(structlpsolvecaller *lpsolvecaller, int element, Double *vec, int *index, int start, int len, int col)
{
PyObject *vector, *item, *item1, *item2;
int i, j = 0, k, m, n = 0, count = 0;
Double a = 0;
char OK = TRUE, isvector;
vector = GetpMatrix(lpsolvecaller, element);
if (vector == NULL)
OK = FALSE;
else {
NUMPY1
if (PyNumber_Check(vector)) {
m = 1;
isvector = FALSE;
}
else {
m = (int) PyObject_Length(vector);
isvector = TRUE;
}
#if defined NUMPY
if (IsNumPy) {
if (m == 1)
m = n;
if (col)
j = col - 1;
}
#endif
if ((col == 0) || (!isvector))
n = 1;
else
n = col;
if ( ((col == 0) && (((m != 1) && (n != 1)) || ((m == 1) && (n > len)) || ((n == 1) && (m > len)))) ||
((col != 0) && ((m > len) || (col > n))) ) {
PyErr_Clear();
/* Printf("1: m=%d, n=%d, col=%d, len=%d\n", m,n,col,len); */
ErrMsgTxt(lpsolvecaller, "invalid vector.");
}
if ((((n == 1) || (col != 0)) && (m != len)) || ((col == 0) && (m == 1) && (n != len))) {
/* Printf("2: m=%d, n=%d, col=%d, len=%d\n", m,n,col,len); */
ErrMsgTxt(lpsolvecaller, "invalid vector.");
}
for (i = k = 0; k < m; k++) {
Lprec_errorflag = 0;
item1 = item2 = NULL;
NUMPY2(a, double, TRUE)
{
if (isvector)
item = item1 = PySequence_GetItem(vector, k);
else
item = vector;
if ((item != NULL) && (col) && (isvector)) {
if (!PyNumber_Check(item)) {
n = (int) PyObject_Length(item);
if (col <= n)
item = item2 = PySequence_GetItem(item, col - 1);
}
else
n = 1;
}
else
n = 1;
if (col > n) {
if (item2 != NULL) {
Py_DECREF(item2);
}
if (item1 != NULL) {
Py_DECREF(item1);
}
PyErr_Clear();
ErrMsgTxt(lpsolvecaller, "invalid vector.");
}
if ((item == NULL) || (!PyNumber_Check(item))) {
if (item2 != NULL) {
Py_DECREF(item2);
}
if (item1 != NULL) {
Py_DECREF(item1);
}
PyErr_Clear();
ErrMsgTxt(lpsolvecaller, "invalid vector (non-numerical item).");
}
a = PyFloat_AsDouble(item);
}
if (a) {
*(vec++) = a;
*(index++) = start + k;
count++;
}
if (item2 != NULL) {
Py_DECREF(item2);
}
if (item1 != NULL) {
Py_DECREF(item1);
}
if (Lprec_errorflag) {
ErrMsgTxt(lpsolvecaller, "invalid vector.");
}
}
}
return(count);
}
int GetString(structlpsolvecaller *lpsolvecaller, pMatrix ppm, int element, char *buf, int size, int ShowError)
{
PyObject *item;
Py_ssize_t size1;
char *ptr = NULL;
if (ppm != NULL) {
ErrMsgTxt(lpsolvecaller, "invalid vector.");
}
item = GetpMatrix(lpsolvecaller, element);
if((item == NULL) ||
(PyString_AsStringAndSize(item, &ptr, &size1) != 0) ||
(ptr == NULL)) {
PyErr_Clear();
if(ShowError)
ErrMsgTxt(lpsolvecaller, "Expecting a character element.");
return(FALSE);
}
if(((int) size1) < size)
size = (int) size1;
memcpy(buf, ptr, size);
buf[size] = 0;
return(TRUE);
}
strArray GetCellCharItems(structlpsolvecaller *lpsolvecaller, int element, int len, int ShowError)
{
int m, i;
Py_ssize_t size1;
PyObject *vector, *item;
char **pa0, **pa, *str, isvector, *ptr;
vector = GetpMatrix(lpsolvecaller, element);
if(vector == NULL) {
PyErr_Clear();
if (ShowError)
ErrMsgTxt(lpsolvecaller, "Expecting a character array.");
return(NULL);
}
if (PyString_Check(vector)) {
m = 1;
isvector = FALSE;
}
else {
m = (int) PyObject_Length(vector);
if (m == -1) {
PyErr_Clear();
if (ShowError)
ErrMsgTxt(lpsolvecaller, "Expecting a character array.");
return(NULL);
}
isvector = TRUE;
}
if (!(m == len))
ErrMsgTxt(lpsolvecaller, "invalid vector.");
pa = pa0 = (char **) matCalloc(len, sizeof(*pa));
for (i = 0; i < len; i++) {
Lprec_errorflag = 0;
if (isvector)
item = PySequence_GetItem(vector, i);
else
item = vector;
if ((item == NULL) || (!PyString_Check(item))) {
PyErr_Clear();
if ((isvector) && (item != NULL)) {
Py_DECREF(item);
}
FreeCellCharItems(pa, i);
ErrMsgTxt(lpsolvecaller, "invalid vector (non-string item).");
}
if ((PyString_AsStringAndSize(item, &ptr, &size1) != 0) ||
(ptr == NULL)) {
PyErr_Clear();
if (isvector) {
Py_DECREF(item);
}
FreeCellCharItems(pa, i);
ErrMsgTxt(lpsolvecaller, "Expecting a character element.");
}
str = pa[i] = (char *) matCalloc((int) size1 + 1, sizeof(*str));
memcpy(str, ptr, (int) size1);
str[(int) size1] = 0;
if (isvector) {
Py_DECREF(item);
}
if (Lprec_errorflag) {
FreeCellCharItems(pa, i + 1);
ErrMsgTxt(lpsolvecaller, "invalid vector.");
}
}
return(pa0);
}
void GetCellString(structlpsolvecaller *lpsolvecaller, char **pa, int element, char *buf, int len)
{
strncpy(buf, pa[element], len);
}
void FreeCellCharItems(strArray pa, int len)
{
int i;
for (i = 0; i < len; i++)
free(pa[i]);
matFree(pa);
}
static void setlhs(structlpsolvecaller *lpsolvecaller, long element, PyObject *PyObject1)
{
int size;
PyObject *PyObject2;
pMatrix lhs = &lpsolvecaller->lhs;
if(element == 0) {
lhs->type = 1;
lhs->PyObject = PyObject1;
}
else {
if (lhs->type == 2) {
size = (int) MyPyArray_Size(lhs->PyObject);
if(size == -1)
PyErr_Clear();
}
else
size = -1;
if(size == -1) {
PyObject2 = lhs->PyObject;
lhs->type = 2;
lhs->PyObject = MyPyArray_New(1 + element);
if(PyObject2 != NULL)
MyPyArray_SET_ITEM(lhs->PyObject, 0, PyObject2);
}
else if (element >= size) {
MyPyArray_Resize(&(lhs->PyObject), 1 + element);
}
MyPyArray_SET_ITEM(lhs->PyObject, element, PyObject1);
}
}
double *CreateDoubleMatrix(structlpsolvecaller *lpsolvecaller, int m, int n, int element)
{
return((double *) malloc(m * n * sizeof(double)));
}
double *CreateDoubleSparseMatrix(structlpsolvecaller *lpsolvecaller, int m, int n, int element)
{
return(CreateDoubleMatrix(lpsolvecaller, m, n, element));
}
void SetDoubleMatrix(structlpsolvecaller *lpsolvecaller, double *mat, int m, int n, int element, int freemat)
{
if (mat != NULL) {
if (m * n == 1)
setlhs(lpsolvecaller, element, PyFloat_FromDouble(*mat));
else {
PyObject *PyObject1, *PyObject2;
int i, j, len, size;
double *mat1;
if (m == 1) {
len = m;
size = n;
}
else {
len = n;
size = m;
}
PyObject1 = MyPyArray_New(size);
mat1 = mat;
for (i = 0; i < size; i++) {
if (len == 1) {
MyPyArray_SET_ITEM(PyObject1, i, PyFloat_FromDouble(*(mat1++)));
}
else {
PyObject2 = MyPyArray_New(len);
mat1 = mat + i;
for (j = 0; j < len; j++, mat1 += size)
MyPyArray_SET_ITEM(PyObject2, j, PyFloat_FromDouble(*mat1));
MyPyArray_SET_ITEM(PyObject1, i, PyObject2);
}
}
setlhs(lpsolvecaller, element, PyObject1);
}
if (freemat)
free(mat);
}
}
long *CreateLongMatrix(structlpsolvecaller *lpsolvecaller, int m, int n, int element)
{
return((long *) malloc(m * n * sizeof(long)));
}
void SetLongMatrix(structlpsolvecaller *lpsolvecaller, long *mat, int m, int n, int element, int freemat)
{
if (mat != NULL) {
if (m * n == 1)
setlhs(lpsolvecaller, element, PyLong_FromLong(*mat));
else {
PyObject *PyObject1, *PyObject2;
int i, j, len, size;
long *mat1;
if (m == 1) {
len = m;
size = n;
}
else {
len = n;
size = m;
}
PyObject1 = MyPyArray_New(size);
mat1 = mat;
for (i = 0; i < size; i++) {
if (len == 1) {
MyPyArray_SET_ITEM(PyObject1, i, PyLong_FromLong(*(mat1++)));
}
else {
PyObject2 = MyPyArray_New(len);
mat1 = mat + i;
for (j = 0; j < len; j++, mat1 += size)
MyPyArray_SET_ITEM(PyObject2, j, PyLong_FromLong(*mat1));
MyPyArray_SET_ITEM(PyObject1, i, PyObject2);
}
}
setlhs(lpsolvecaller, element, PyObject1);
}
if (freemat)
free(mat);
}
}
void SetColumnDoubleSparseMatrix(structlpsolvecaller *lpsolvecaller, int element, int m, int n, double *mat, int column, double *arry, int *index, int size, int *nz)
{
double *sr = mat + (column - 1) * m, a;
int ii, i, j = -1;
for (i = 0; (i < size); i++) {
a = arry[i];
if (a) {
if (index == NULL)
ii = i;
else
ii = index[i] - 1;
while (++j < ii)
sr[j] = 0.0;
sr[ii] = a;
}
}
while (++j < m)
sr[j] = 0.0;
*nz += m;
}
void CreateString(structlpsolvecaller *lpsolvecaller, char **str, int m, int element)
{
if(m == 1)
setlhs(lpsolvecaller, element, PyString_FromString(*str));
else {
PyObject *PyObject1;
int i, len = m;
PyObject1 = MyPyArray_New(len);
for (i = 0; i < len; i++)
MyPyArray_SET_ITEM(PyObject1, i, PyString_FromString(*(str++)));
setlhs(lpsolvecaller, element, PyObject1);
}
}