diff options
Diffstat (limited to 'AppPkg/Applications/Python/Python-2.7.10/Modules/arraymodule.c')
| -rw-r--r-- | AppPkg/Applications/Python/Python-2.7.10/Modules/arraymodule.c | 2261 |
1 files changed, 2261 insertions, 0 deletions
diff --git a/AppPkg/Applications/Python/Python-2.7.10/Modules/arraymodule.c b/AppPkg/Applications/Python/Python-2.7.10/Modules/arraymodule.c new file mode 100644 index 0000000000..572b1421d0 --- /dev/null +++ b/AppPkg/Applications/Python/Python-2.7.10/Modules/arraymodule.c @@ -0,0 +1,2261 @@ +/* Array object implementation */
+
+/* An array is a uniform list -- all items have the same type.
+ The item type is restricted to simple C types like int or float */
+
+#define PY_SSIZE_T_CLEAN
+#include "Python.h"
+#include "structmember.h"
+
+#ifdef STDC_HEADERS
+#include <stddef.h>
+#else /* !STDC_HEADERS */
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h> /* For size_t */
+#endif /* HAVE_SYS_TYPES_H */
+#endif /* !STDC_HEADERS */
+
+struct arrayobject; /* Forward */
+
+/* All possible arraydescr values are defined in the vector "descriptors"
+ * below. That's defined later because the appropriate get and set
+ * functions aren't visible yet.
+ */
+struct arraydescr {
+ int typecode;
+ int itemsize;
+ PyObject * (*getitem)(struct arrayobject *, Py_ssize_t);
+ int (*setitem)(struct arrayobject *, Py_ssize_t, PyObject *);
+};
+
+typedef struct arrayobject {
+ PyObject_VAR_HEAD
+ char *ob_item;
+ Py_ssize_t allocated;
+ struct arraydescr *ob_descr;
+ PyObject *weakreflist; /* List of weak references */
+} arrayobject;
+
+static PyTypeObject Arraytype;
+
+#define array_Check(op) PyObject_TypeCheck(op, &Arraytype)
+#define array_CheckExact(op) (Py_TYPE(op) == &Arraytype)
+
+static int
+array_resize(arrayobject *self, Py_ssize_t newsize)
+{
+ char *items;
+ size_t _new_size;
+
+ /* Bypass realloc() when a previous overallocation is large enough
+ to accommodate the newsize. If the newsize is 16 smaller than the
+ current size, then proceed with the realloc() to shrink the list.
+ */
+
+ if (self->allocated >= newsize &&
+ Py_SIZE(self) < newsize + 16 &&
+ self->ob_item != NULL) {
+ Py_SIZE(self) = newsize;
+ return 0;
+ }
+
+ /* This over-allocates proportional to the array size, making room
+ * for additional growth. The over-allocation is mild, but is
+ * enough to give linear-time amortized behavior over a long
+ * sequence of appends() in the presence of a poorly-performing
+ * system realloc().
+ * The growth pattern is: 0, 4, 8, 16, 25, 34, 46, 56, 67, 79, ...
+ * Note, the pattern starts out the same as for lists but then
+ * grows at a smaller rate so that larger arrays only overallocate
+ * by about 1/16th -- this is done because arrays are presumed to be more
+ * memory critical.
+ */
+
+ _new_size = (newsize >> 4) + (Py_SIZE(self) < 8 ? 3 : 7) + newsize;
+ items = self->ob_item;
+ /* XXX The following multiplication and division does not optimize away
+ like it does for lists since the size is not known at compile time */
+ if (_new_size <= ((~(size_t)0) / self->ob_descr->itemsize))
+ PyMem_RESIZE(items, char, (_new_size * self->ob_descr->itemsize));
+ else
+ items = NULL;
+ if (items == NULL) {
+ PyErr_NoMemory();
+ return -1;
+ }
+ self->ob_item = items;
+ Py_SIZE(self) = newsize;
+ self->allocated = _new_size;
+ return 0;
+}
+
+/****************************************************************************
+Get and Set functions for each type.
+A Get function takes an arrayobject* and an integer index, returning the
+array value at that index wrapped in an appropriate PyObject*.
+A Set function takes an arrayobject, integer index, and PyObject*; sets
+the array value at that index to the raw C data extracted from the PyObject*,
+and returns 0 if successful, else nonzero on failure (PyObject* not of an
+appropriate type or value).
+Note that the basic Get and Set functions do NOT check that the index is
+in bounds; that's the responsibility of the caller.
+****************************************************************************/
+
+static PyObject *
+c_getitem(arrayobject *ap, Py_ssize_t i)
+{
+ return PyString_FromStringAndSize(&((char *)ap->ob_item)[i], 1);
+}
+
+static int
+c_setitem(arrayobject *ap, Py_ssize_t i, PyObject *v)
+{
+ char x;
+ if (!PyArg_Parse(v, "c;array item must be char", &x))
+ return -1;
+ if (i >= 0)
+ ((char *)ap->ob_item)[i] = x;
+ return 0;
+}
+
+static PyObject *
+b_getitem(arrayobject *ap, Py_ssize_t i)
+{
+ long x = ((char *)ap->ob_item)[i];
+ if (x >= 128)
+ x -= 256;
+ return PyInt_FromLong(x);
+}
+
+static int
+b_setitem(arrayobject *ap, Py_ssize_t i, PyObject *v)
+{
+ short x;
+ /* PyArg_Parse's 'b' formatter is for an unsigned char, therefore
+ must use the next size up that is signed ('h') and manually do
+ the overflow checking */
+ if (!PyArg_Parse(v, "h;array item must be integer", &x))
+ return -1;
+ else if (x < -128) {
+ PyErr_SetString(PyExc_OverflowError,
+ "signed char is less than minimum");
+ return -1;
+ }
+ else if (x > 127) {
+ PyErr_SetString(PyExc_OverflowError,
+ "signed char is greater than maximum");
+ return -1;
+ }
+ if (i >= 0)
+ ((char *)ap->ob_item)[i] = (char)x;
+ return 0;
+}
+
+static PyObject *
+BB_getitem(arrayobject *ap, Py_ssize_t i)
+{
+ long x = ((unsigned char *)ap->ob_item)[i];
+ return PyInt_FromLong(x);
+}
+
+static int
+BB_setitem(arrayobject *ap, Py_ssize_t i, PyObject *v)
+{
+ unsigned char x;
+ /* 'B' == unsigned char, maps to PyArg_Parse's 'b' formatter */
+ if (!PyArg_Parse(v, "b;array item must be integer", &x))
+ return -1;
+ if (i >= 0)
+ ((char *)ap->ob_item)[i] = x;
+ return 0;
+}
+
+#ifdef Py_USING_UNICODE
+static PyObject *
+u_getitem(arrayobject *ap, Py_ssize_t i)
+{
+ return PyUnicode_FromUnicode(&((Py_UNICODE *) ap->ob_item)[i], 1);
+}
+
+static int
+u_setitem(arrayobject *ap, Py_ssize_t i, PyObject *v)
+{
+ Py_UNICODE *p;
+ Py_ssize_t len;
+
+ if (!PyArg_Parse(v, "u#;array item must be unicode character", &p, &len))
+ return -1;
+ if (len != 1) {
+ PyErr_SetString(PyExc_TypeError,
+ "array item must be unicode character");
+ return -1;
+ }
+ if (i >= 0)
+ ((Py_UNICODE *)ap->ob_item)[i] = p[0];
+ return 0;
+}
+#endif
+
+static PyObject *
+h_getitem(arrayobject *ap, Py_ssize_t i)
+{
+ return PyInt_FromLong((long) ((short *)ap->ob_item)[i]);
+}
+
+static int
+h_setitem(arrayobject *ap, Py_ssize_t i, PyObject *v)
+{
+ short x;
+ /* 'h' == signed short, maps to PyArg_Parse's 'h' formatter */
+ if (!PyArg_Parse(v, "h;array item must be integer", &x))
+ return -1;
+ if (i >= 0)
+ ((short *)ap->ob_item)[i] = x;
+ return 0;
+}
+
+static PyObject *
+HH_getitem(arrayobject *ap, Py_ssize_t i)
+{
+ return PyInt_FromLong((long) ((unsigned short *)ap->ob_item)[i]);
+}
+
+static int
+HH_setitem(arrayobject *ap, Py_ssize_t i, PyObject *v)
+{
+ int x;
+ /* PyArg_Parse's 'h' formatter is for a signed short, therefore
+ must use the next size up and manually do the overflow checking */
+ if (!PyArg_Parse(v, "i;array item must be integer", &x))
+ return -1;
+ else if (x < 0) {
+ PyErr_SetString(PyExc_OverflowError,
+ "unsigned short is less than minimum");
+ return -1;
+ }
+ else if (x > USHRT_MAX) {
+ PyErr_SetString(PyExc_OverflowError,
+ "unsigned short is greater than maximum");
+ return -1;
+ }
+ if (i >= 0)
+ ((short *)ap->ob_item)[i] = (short)x;
+ return 0;
+}
+
+static PyObject *
+i_getitem(arrayobject *ap, Py_ssize_t i)
+{
+ return PyInt_FromLong((long) ((int *)ap->ob_item)[i]);
+}
+
+static int
+i_setitem(arrayobject *ap, Py_ssize_t i, PyObject *v)
+{
+ int x;
+ /* 'i' == signed int, maps to PyArg_Parse's 'i' formatter */
+ if (!PyArg_Parse(v, "i;array item must be integer", &x))
+ return -1;
+ if (i >= 0)
+ ((int *)ap->ob_item)[i] = x;
+ return 0;
+}
+
+static PyObject *
+II_getitem(arrayobject *ap, Py_ssize_t i)
+{
+ return PyLong_FromUnsignedLong(
+ (unsigned long) ((unsigned int *)ap->ob_item)[i]);
+}
+
+static int
+II_setitem(arrayobject *ap, Py_ssize_t i, PyObject *v)
+{
+ unsigned long x;
+ if (PyLong_Check(v)) {
+ x = PyLong_AsUnsignedLong(v);
+ if (x == (unsigned long) -1 && PyErr_Occurred())
+ return -1;
+ }
+ else {
+ long y;
+ if (!PyArg_Parse(v, "l;array item must be integer", &y))
+ return -1;
+ if (y < 0) {
+ PyErr_SetString(PyExc_OverflowError,
+ "unsigned int is less than minimum");
+ return -1;
+ }
+ x = (unsigned long)y;
+
+ }
+ if (x > UINT_MAX) {
+ PyErr_SetString(PyExc_OverflowError,
+ "unsigned int is greater than maximum");
+ return -1;
+ }
+
+ if (i >= 0)
+ ((unsigned int *)ap->ob_item)[i] = (unsigned int)x;
+ return 0;
+}
+
+static PyObject *
+l_getitem(arrayobject *ap, Py_ssize_t i)
+{
+ return PyInt_FromLong(((long *)ap->ob_item)[i]);
+}
+
+static int
+l_setitem(arrayobject *ap, Py_ssize_t i, PyObject *v)
+{
+ long x;
+ if (!PyArg_Parse(v, "l;array item must be integer", &x))
+ return -1;
+ if (i >= 0)
+ ((long *)ap->ob_item)[i] = x;
+ return 0;
+}
+
+static PyObject *
+LL_getitem(arrayobject *ap, Py_ssize_t i)
+{
+ return PyLong_FromUnsignedLong(((unsigned long *)ap->ob_item)[i]);
+}
+
+static int
+LL_setitem(arrayobject *ap, Py_ssize_t i, PyObject *v)
+{
+ unsigned long x;
+ if (PyLong_Check(v)) {
+ x = PyLong_AsUnsignedLong(v);
+ if (x == (unsigned long) -1 && PyErr_Occurred())
+ return -1;
+ }
+ else {
+ long y;
+ if (!PyArg_Parse(v, "l;array item must be integer", &y))
+ return -1;
+ if (y < 0) {
+ PyErr_SetString(PyExc_OverflowError,
+ "unsigned long is less than minimum");
+ return -1;
+ }
+ x = (unsigned long)y;
+
+ }
+ if (x > ULONG_MAX) {
+ PyErr_SetString(PyExc_OverflowError,
+ "unsigned long is greater than maximum");
+ return -1;
+ }
+
+ if (i >= 0)
+ ((unsigned long *)ap->ob_item)[i] = x;
+ return 0;
+}
+
+static PyObject *
+f_getitem(arrayobject *ap, Py_ssize_t i)
+{
+ return PyFloat_FromDouble((double) ((float *)ap->ob_item)[i]);
+}
+
+static int
+f_setitem(arrayobject *ap, Py_ssize_t i, PyObject *v)
+{
+ float x;
+ if (!PyArg_Parse(v, "f;array item must be float", &x))
+ return -1;
+ if (i >= 0)
+ ((float *)ap->ob_item)[i] = x;
+ return 0;
+}
+
+static PyObject *
+d_getitem(arrayobject *ap, Py_ssize_t i)
+{
+ return PyFloat_FromDouble(((double *)ap->ob_item)[i]);
+}
+
+static int
+d_setitem(arrayobject *ap, Py_ssize_t i, PyObject *v)
+{
+ double x;
+ if (!PyArg_Parse(v, "d;array item must be float", &x))
+ return -1;
+ if (i >= 0)
+ ((double *)ap->ob_item)[i] = x;
+ return 0;
+}
+
+/* Description of types */
+static struct arraydescr descriptors[] = {
+ {'c', sizeof(char), c_getitem, c_setitem},
+ {'b', sizeof(char), b_getitem, b_setitem},
+ {'B', sizeof(char), BB_getitem, BB_setitem},
+#ifdef Py_USING_UNICODE
+ {'u', sizeof(Py_UNICODE), u_getitem, u_setitem},
+#endif
+ {'h', sizeof(short), h_getitem, h_setitem},
+ {'H', sizeof(short), HH_getitem, HH_setitem},
+ {'i', sizeof(int), i_getitem, i_setitem},
+ {'I', sizeof(int), II_getitem, II_setitem},
+ {'l', sizeof(long), l_getitem, l_setitem},
+ {'L', sizeof(long), LL_getitem, LL_setitem},
+ {'f', sizeof(float), f_getitem, f_setitem},
+ {'d', sizeof(double), d_getitem, d_setitem},
+ {'\0', 0, 0, 0} /* Sentinel */
+};
+
+/****************************************************************************
+Implementations of array object methods.
+****************************************************************************/
+
+static PyObject *
+newarrayobject(PyTypeObject *type, Py_ssize_t size, struct arraydescr *descr)
+{
+ arrayobject *op;
+ size_t nbytes;
+
+ if (size < 0) {
+ PyErr_BadInternalCall();
+ return NULL;
+ }
+
+ nbytes = size * descr->itemsize;
+ /* Check for overflow */
+ if (nbytes / descr->itemsize != (size_t)size) {
+ return PyErr_NoMemory();
+ }
+ op = (arrayobject *) type->tp_alloc(type, 0);
+ if (op == NULL) {
+ return NULL;
+ }
+ op->ob_descr = descr;
+ op->allocated = size;
+ op->weakreflist = NULL;
+ Py_SIZE(op) = size;
+ if (size <= 0) {
+ op->ob_item = NULL;
+ }
+ else {
+ op->ob_item = PyMem_NEW(char, nbytes);
+ if (op->ob_item == NULL) {
+ Py_DECREF(op);
+ return PyErr_NoMemory();
+ }
+ }
+ return (PyObject *) op;
+}
+
+static PyObject *
+getarrayitem(PyObject *op, Py_ssize_t i)
+{
+ register arrayobject *ap;
+ assert(array_Check(op));
+ ap = (arrayobject *)op;
+ assert(i>=0 && i<Py_SIZE(ap));
+ return (*ap->ob_descr->getitem)(ap, i);
+}
+
+static int
+ins1(arrayobject *self, Py_ssize_t where, PyObject *v)
+{
+ char *items;
+ Py_ssize_t n = Py_SIZE(self);
+ if (v == NULL) {
+ PyErr_BadInternalCall();
+ return -1;
+ }
+ if ((*self->ob_descr->setitem)(self, -1, v) < 0)
+ return -1;
+
+ if (array_resize(self, n+1) == -1)
+ return -1;
+ items = self->ob_item;
+ if (where < 0) {
+ where += n;
+ if (where < 0)
+ where = 0;
+ }
+ if (where > n)
+ where = n;
+ /* appends don't need to call memmove() */
+ if (where != n)
+ memmove(items + (where+1)*self->ob_descr->itemsize,
+ items + where*self->ob_descr->itemsize,
+ (n-where)*self->ob_descr->itemsize);
+ return (*self->ob_descr->setitem)(self, where, v);
+}
+
+/* Methods */
+
+static void
+array_dealloc(arrayobject *op)
+{
+ if (op->weakreflist != NULL)
+ PyObject_ClearWeakRefs((PyObject *) op);
+ if (op->ob_item != NULL)
+ PyMem_DEL(op->ob_item);
+ Py_TYPE(op)->tp_free((PyObject *)op);
+}
+
+static PyObject *
+array_richcompare(PyObject *v, PyObject *w, int op)
+{
+ arrayobject *va, *wa;
+ PyObject *vi = NULL;
+ PyObject *wi = NULL;
+ Py_ssize_t i, k;
+ PyObject *res;
+
+ if (!array_Check(v) || !array_Check(w)) {
+ Py_INCREF(Py_NotImplemented);
+ return Py_NotImplemented;
+ }
+
+ va = (arrayobject *)v;
+ wa = (arrayobject *)w;
+
+ if (Py_SIZE(va) != Py_SIZE(wa) && (op == Py_EQ || op == Py_NE)) {
+ /* Shortcut: if the lengths differ, the arrays differ */
+ if (op == Py_EQ)
+ res = Py_False;
+ else
+ res = Py_True;
+ Py_INCREF(res);
+ return res;
+ }
+
+ /* Search for the first index where items are different */
+ k = 1;
+ for (i = 0; i < Py_SIZE(va) && i < Py_SIZE(wa); i++) {
+ vi = getarrayitem(v, i);
+ wi = getarrayitem(w, i);
+ if (vi == NULL || wi == NULL) {
+ Py_XDECREF(vi);
+ Py_XDECREF(wi);
+ return NULL;
+ }
+ k = PyObject_RichCompareBool(vi, wi, Py_EQ);
+ if (k == 0)
+ break; /* Keeping vi and wi alive! */
+ Py_DECREF(vi);
+ Py_DECREF(wi);
+ if (k < 0)
+ return NULL;
+ }
+
+ if (k) {
+ /* No more items to compare -- compare sizes */
+ Py_ssize_t vs = Py_SIZE(va);
+ Py_ssize_t ws = Py_SIZE(wa);
+ int cmp;
+ switch (op) {
+ case Py_LT: cmp = vs < ws; break;
+ case Py_LE: cmp = vs <= ws; break;
+ case Py_EQ: cmp = vs == ws; break;
+ case Py_NE: cmp = vs != ws; break;
+ case Py_GT: cmp = vs > ws; break;
+ case Py_GE: cmp = vs >= ws; break;
+ default: return NULL; /* cannot happen */
+ }
+ if (cmp)
+ res = Py_True;
+ else
+ res = Py_False;
+ Py_INCREF(res);
+ return res;
+ }
+
+ /* We have an item that differs. First, shortcuts for EQ/NE */
+ if (op == Py_EQ) {
+ Py_INCREF(Py_False);
+ res = Py_False;
+ }
+ else if (op == Py_NE) {
+ Py_INCREF(Py_True);
+ res = Py_True;
+ }
+ else {
+ /* Compare the final item again using the proper operator */
+ res = PyObject_RichCompare(vi, wi, op);
+ }
+ Py_DECREF(vi);
+ Py_DECREF(wi);
+ return res;
+}
+
+static Py_ssize_t
+array_length(arrayobject *a)
+{
+ return Py_SIZE(a);
+}
+
+static PyObject *
+array_item(arrayobject *a, Py_ssize_t i)
+{
+ if (i < 0 || i >= Py_SIZE(a)) {
+ PyErr_SetString(PyExc_IndexError, "array index out of range");
+ return NULL;
+ }
+ return getarrayitem((PyObject *)a, i);
+}
+
+static PyObject *
+array_slice(arrayobject *a, Py_ssize_t ilow, Py_ssize_t ihigh)
+{
+ arrayobject *np;
+ if (ilow < 0)
+ ilow = 0;
+ else if (ilow > Py_SIZE(a))
+ ilow = Py_SIZE(a);
+ if (ihigh < 0)
+ ihigh = 0;
+ if (ihigh < ilow)
+ ihigh = ilow;
+ else if (ihigh > Py_SIZE(a))
+ ihigh = Py_SIZE(a);
+ np = (arrayobject *) newarrayobject(&Arraytype, ihigh - ilow, a->ob_descr);
+ if (np == NULL)
+ return NULL;
+ memcpy(np->ob_item, a->ob_item + ilow * a->ob_descr->itemsize,
+ (ihigh-ilow) * a->ob_descr->itemsize);
+ return (PyObject *)np;
+}
+
+static PyObject *
+array_copy(arrayobject *a, PyObject *unused)
+{
+ return array_slice(a, 0, Py_SIZE(a));
+}
+
+PyDoc_STRVAR(copy_doc,
+"copy(array)\n\
+\n\
+ Return a copy of the array.");
+
+static PyObject *
+array_concat(arrayobject *a, PyObject *bb)
+{
+ Py_ssize_t size;
+ arrayobject *np;
+ if (!array_Check(bb)) {
+ PyErr_Format(PyExc_TypeError,
+ "can only append array (not \"%.200s\") to array",
+ Py_TYPE(bb)->tp_name);
+ return NULL;
+ }
+#define b ((arrayobject *)bb)
+ if (a->ob_descr != b->ob_descr) {
+ PyErr_BadArgument();
+ return NULL;
+ }
+ if (Py_SIZE(a) > PY_SSIZE_T_MAX - Py_SIZE(b)) {
+ return PyErr_NoMemory();
+ }
+ size = Py_SIZE(a) + Py_SIZE(b);
+ np = (arrayobject *) newarrayobject(&Arraytype, size, a->ob_descr);
+ if (np == NULL) {
+ return NULL;
+ }
+ memcpy(np->ob_item, a->ob_item, Py_SIZE(a)*a->ob_descr->itemsize);
+ memcpy(np->ob_item + Py_SIZE(a)*a->ob_descr->itemsize,
+ b->ob_item, Py_SIZE(b)*b->ob_descr->itemsize);
+ return (PyObject *)np;
+#undef b
+}
+
+static PyObject *
+array_repeat(arrayobject *a, Py_ssize_t n)
+{
+ Py_ssize_t i;
+ Py_ssize_t size;
+ arrayobject *np;
+ char *p;
+ Py_ssize_t nbytes;
+ if (n < 0)
+ n = 0;
+ if ((Py_SIZE(a) != 0) && (n > PY_SSIZE_T_MAX / Py_SIZE(a))) {
+ return PyErr_NoMemory();
+ }
+ size = Py_SIZE(a) * n;
+ np = (arrayobject *) newarrayobject(&Arraytype, size, a->ob_descr);
+ if (np == NULL)
+ return NULL;
+ p = np->ob_item;
+ nbytes = Py_SIZE(a) * a->ob_descr->itemsize;
+ for (i = 0; i < n; i++) {
+ memcpy(p, a->ob_item, nbytes);
+ p += nbytes;
+ }
+ return (PyObject *) np;
+}
+
+static int
+array_ass_slice(arrayobject *a, Py_ssize_t ilow, Py_ssize_t ihigh, PyObject *v)
+{
+ char *item;
+ Py_ssize_t n; /* Size of replacement array */
+ Py_ssize_t d; /* Change in size */
+#define b ((arrayobject *)v)
+ if (v == NULL)
+ n = 0;
+ else if (array_Check(v)) {
+ n = Py_SIZE(b);
+ if (a == b) {
+ /* Special case "a[i:j] = a" -- copy b first */
+ int ret;
+ v = array_slice(b, 0, n);
+ if (!v)
+ return -1;
+ ret = array_ass_slice(a, ilow, ihigh, v);
+ Py_DECREF(v);
+ return ret;
+ }
+ if (b->ob_descr != a->ob_descr) {
+ PyErr_BadArgument();
+ return -1;
+ }
+ }
+ else {
+ PyErr_Format(PyExc_TypeError,
+ "can only assign array (not \"%.200s\") to array slice",
+ Py_TYPE(v)->tp_name);
+ return -1;
+ }
+ if (ilow < 0)
+ ilow = 0;
+ else if (ilow > Py_SIZE(a))
+ ilow = Py_SIZE(a);
+ if (ihigh < 0)
+ ihigh = 0;
+ if (ihigh < ilow)
+ ihigh = ilow;
+ else if (ihigh > Py_SIZE(a))
+ ihigh = Py_SIZE(a);
+ item = a->ob_item;
+ d = n - (ihigh-ilow);
+ if (d < 0) { /* Delete -d items */
+ memmove(item + (ihigh+d)*a->ob_descr->itemsize,
+ item + ihigh*a->ob_descr->itemsize,
+ (Py_SIZE(a)-ihigh)*a->ob_descr->itemsize);
+ Py_SIZE(a) += d;
+ PyMem_RESIZE(item, char, Py_SIZE(a)*a->ob_descr->itemsize);
+ /* Can't fail */
+ a->ob_item = item;
+ a->allocated = Py_SIZE(a);
+ }
+ else if (d > 0) { /* Insert d items */
+ PyMem_RESIZE(item, char,
+ (Py_SIZE(a) + d)*a->ob_descr->itemsize);
+ if (item == NULL) {
+ PyErr_NoMemory();
+ return -1;
+ }
+ memmove(item + (ihigh+d)*a->ob_descr->itemsize,
+ item + ihigh*a->ob_descr->itemsize,
+ (Py_SIZE(a)-ihigh)*a->ob_descr->itemsize);
+ a->ob_item = item;
+ Py_SIZE(a) += d;
+ a->allocated = Py_SIZE(a);
+ }
+ if (n > 0)
+ memcpy(item + ilow*a->ob_descr->itemsize, b->ob_item,
+ n*b->ob_descr->itemsize);
+ return 0;
+#undef b
+}
+
+static int
+array_ass_item(arrayobject *a, Py_ssize_t i, PyObject *v)
+{
+ if (i < 0 || i >= Py_SIZE(a)) {
+ PyErr_SetString(PyExc_IndexError,
+ "array assignment index out of range");
+ return -1;
+ }
+ if (v == NULL)
+ return array_ass_slice(a, i, i+1, v);
+ return (*a->ob_descr->setitem)(a, i, v);
+}
+
+static int
+setarrayitem(PyObject *a, Py_ssize_t i, PyObject *v)
+{
+ assert(array_Check(a));
+ return array_ass_item((arrayobject *)a, i, v);
+}
+
+static int
+array_iter_extend(arrayobject *self, PyObject *bb)
+{
+ PyObject *it, *v;
+
+ it = PyObject_GetIter(bb);
+ if (it == NULL)
+ return -1;
+
+ while ((v = PyIter_Next(it)) != NULL) {
+ if (ins1(self, Py_SIZE(self), v) != 0) {
+ Py_DECREF(v);
+ Py_DECREF(it);
+ return -1;
+ }
+ Py_DECREF(v);
+ }
+ Py_DECREF(it);
+ if (PyErr_Occurred())
+ return -1;
+ return 0;
+}
+
+static int
+array_do_extend(arrayobject *self, PyObject *bb)
+{
+ Py_ssize_t size;
+ char *old_item;
+
+ if (!array_Check(bb))
+ return array_iter_extend(self, bb);
+#define b ((arrayobject *)bb)
+ if (self->ob_descr != b->ob_descr) {
+ PyErr_SetString(PyExc_TypeError,
+ "can only extend with array of same kind");
+ return -1;
+ }
+ if ((Py_SIZE(self) > PY_SSIZE_T_MAX - Py_SIZE(b)) ||
+ ((Py_SIZE(self) + Py_SIZE(b)) > PY_SSIZE_T_MAX / self->ob_descr->itemsize)) {
+ PyErr_NoMemory();
+ return -1;
+ }
+ size = Py_SIZE(self) + Py_SIZE(b);
+ old_item = self->ob_item;
+ PyMem_RESIZE(self->ob_item, char, size*self->ob_descr->itemsize);
+ if (self->ob_item == NULL) {
+ self->ob_item = old_item;
+ PyErr_NoMemory();
+ return -1;
+ }
+ memcpy(self->ob_item + Py_SIZE(self)*self->ob_descr->itemsize,
+ b->ob_item, Py_SIZE(b)*b->ob_descr->itemsize);
+ Py_SIZE(self) = size;
+ self->allocated = size;
+
+ return 0;
+#undef b
+}
+
+static PyObject *
+array_inplace_concat(arrayobject *self, PyObject *bb)
+{
+ if (!array_Check(bb)) {
+ PyErr_Format(PyExc_TypeError,
+ "can only extend array with array (not \"%.200s\")",
+ Py_TYPE(bb)->tp_name);
+ return NULL;
+ }
+ if (array_do_extend(self, bb) == -1)
+ return NULL;
+ Py_INCREF(self);
+ return (PyObject *)self;
+}
+
+static PyObject *
+array_inplace_repeat(arrayobject *self, Py_ssize_t n)
+{
+ char *items, *p;
+ Py_ssize_t size, i;
+
+ if (Py_SIZE(self) > 0) {
+ if (n < 0)
+ n = 0;
+ items = self->ob_item;
+ if ((self->ob_descr->itemsize != 0) &&
+ (Py_SIZE(self) > PY_SSIZE_T_MAX / self->ob_descr->itemsize)) {
+ return PyErr_NoMemory();
+ }
+ size = Py_SIZE(self) * self->ob_descr->itemsize;
+ if (n == 0) {
+ PyMem_FREE(items);
+ self->ob_item = NULL;
+ Py_SIZE(self) = 0;
+ self->allocated = 0;
+ }
+ else {
+ if (size > PY_SSIZE_T_MAX / n) {
+ return PyErr_NoMemory();
+ }
+ PyMem_RESIZE(items, char, n * size);
+ if (items == NULL)
+ return PyErr_NoMemory();
+ p = items;
+ for (i = 1; i < n; i++) {
+ p += size;
+ memcpy(p, items, size);
+ }
+ self->ob_item = items;
+ Py_SIZE(self) *= n;
+ self->allocated = Py_SIZE(self);
+ }
+ }
+ Py_INCREF(self);
+ return (PyObject *)self;
+}
+
+
+static PyObject *
+ins(arrayobject *self, Py_ssize_t where, PyObject *v)
+{
+ if (ins1(self, where, v) != 0)
+ return NULL;
+ Py_INCREF(Py_None);
+ return Py_None;
+}
+
+static PyObject *
+array_count(arrayobject *self, PyObject *v)
+{
+ Py_ssize_t count = 0;
+ Py_ssize_t i;
+
+ for (i = 0; i < Py_SIZE(self); i++) {
+ PyObject *selfi = getarrayitem((PyObject *)self, i);
+ int cmp = PyObject_RichCompareBool(selfi, v, Py_EQ);
+ Py_DECREF(selfi);
+ if (cmp > 0)
+ count++;
+ else if (cmp < 0)
+ return NULL;
+ }
+ return PyInt_FromSsize_t(count);
+}
+
+PyDoc_STRVAR(count_doc,
+"count(x)\n\
+\n\
+Return number of occurrences of x in the array.");
+
+static PyObject *
+array_index(arrayobject *self, PyObject *v)
+{
+ Py_ssize_t i;
+
+ for (i = 0; i < Py_SIZE(self); i++) {
+ PyObject *selfi = getarrayitem((PyObject *)self, i);
+ int cmp = PyObject_RichCompareBool(selfi, v, Py_EQ);
+ Py_DECREF(selfi);
+ if (cmp > 0) {
+ return PyInt_FromLong((long)i);
+ }
+ else if (cmp < 0)
+ return NULL;
+ }
+ PyErr_SetString(PyExc_ValueError, "array.index(x): x not in list");
+ return NULL;
+}
+
+PyDoc_STRVAR(index_doc,
+"index(x)\n\
+\n\
+Return index of first occurrence of x in the array.");
+
+static int
+array_contains(arrayobject *self, PyObject *v)
+{
+ Py_ssize_t i;
+ int cmp;
+
+ for (i = 0, cmp = 0 ; cmp == 0 && i < Py_SIZE(self); i++) {
+ PyObject *selfi = getarrayitem((PyObject *)self, i);
+ cmp = PyObject_RichCompareBool(selfi, v, Py_EQ);
+ Py_DECREF(selfi);
+ }
+ return cmp;
+}
+
+static PyObject *
+array_remove(arrayobject *self, PyObject *v)
+{
+ int i;
+
+ for (i = 0; i < Py_SIZE(self); i++) {
+ PyObject *selfi = getarrayitem((PyObject *)self,i);
+ int cmp = PyObject_RichCompareBool(selfi, v, Py_EQ);
+ Py_DECREF(selfi);
+ if (cmp > 0) {
+ if (array_ass_slice(self, i, i+1,
+ (PyObject *)NULL) != 0)
+ return NULL;
+ Py_INCREF(Py_None);
+ return Py_None;
+ }
+ else if (cmp < 0)
+ return NULL;
+ }
+ PyErr_SetString(PyExc_ValueError, "array.remove(x): x not in list");
+ return NULL;
+}
+
+PyDoc_STRVAR(remove_doc,
+"remove(x)\n\
+\n\
+Remove the first occurrence of x in the array.");
+
+static PyObject *
+array_pop(arrayobject *self, PyObject *args)
+{
+ Py_ssize_t i = -1;
+ PyObject *v;
+ if (!PyArg_ParseTuple(args, "|n:pop", &i))
+ return NULL;
+ if (Py_SIZE(self) == 0) {
+ /* Special-case most common failure cause */
+ PyErr_SetString(PyExc_IndexError, "pop from empty array");
+ return NULL;
+ }
+ if (i < 0)
+ i += Py_SIZE(self);
+ if (i < 0 || i >= Py_SIZE(self)) {
+ PyErr_SetString(PyExc_IndexError, "pop index out of range");
+ return NULL;
+ }
+ v = getarrayitem((PyObject *)self,i);
+ if (array_ass_slice(self, i, i+1, (PyObject *)NULL) != 0) {
+ Py_DECREF(v);
+ return NULL;
+ }
+ return v;
+}
+
+PyDoc_STRVAR(pop_doc,
+"pop([i])\n\
+\n\
+Return the i-th element and delete it from the array. i defaults to -1.");
+
+static PyObject *
+array_extend(arrayobject *self, PyObject *bb)
+{
+ if (array_do_extend(self, bb) == -1)
+ return NULL;
+ Py_INCREF(Py_None);
+ return Py_None;
+}
+
+PyDoc_STRVAR(extend_doc,
+"extend(array or iterable)\n\
+\n\
+ Append items to the end of the array.");
+
+static PyObject *
+array_insert(arrayobject *self, PyObject *args)
+{
+ Py_ssize_t i;
+ PyObject *v;
+ if (!PyArg_ParseTuple(args, "nO:insert", &i, &v))
+ return NULL;
+ return ins(self, i, v);
+}
+
+PyDoc_STRVAR(insert_doc,
+"insert(i,x)\n\
+\n\
+Insert a new item x into the array before position i.");
+
+
+static PyObject *
+array_buffer_info(arrayobject *self, PyObject *unused)
+{
+ PyObject* retval = NULL;
+ retval = PyTuple_New(2);
+ if (!retval)
+ return NULL;
+
+ PyTuple_SET_ITEM(retval, 0, PyLong_FromVoidPtr(self->ob_item));
+ PyTuple_SET_ITEM(retval, 1, PyInt_FromLong((long)(Py_SIZE(self))));
+
+ return retval;
+}
+
+PyDoc_STRVAR(buffer_info_doc,
+"buffer_info() -> (address, length)\n\
+\n\
+Return a tuple (address, length) giving the current memory address and\n\
+the length in items of the buffer used to hold array's contents\n\
+The length should be multiplied by the itemsize attribute to calculate\n\
+the buffer length in bytes.");
+
+
+static PyObject *
+array_append(arrayobject *self, PyObject *v)
+{
+ return ins(self, Py_SIZE(self), v);
+}
+
+PyDoc_STRVAR(append_doc,
+"append(x)\n\
+\n\
+Append new value x to the end of the array.");
+
+
+static PyObject *
+array_byteswap(arrayobject *self, PyObject *unused)
+{
+ char *p;
+ Py_ssize_t i;
+
+ switch (self->ob_descr->itemsize) {
+ case 1:
+ break;
+ case 2:
+ for (p = self->ob_item, i = Py_SIZE(self); --i >= 0; p += 2) {
+ char p0 = p[0];
+ p[0] = p[1];
+ p[1] = p0;
+ }
+ break;
+ case 4:
+ for (p = self->ob_item, i = Py_SIZE(self); --i >= 0; p += 4) {
+ char p0 = p[0];
+ char p1 = p[1];
+ p[0] = p[3];
+ p[1] = p[2];
+ p[2] = p1;
+ p[3] = p0;
+ }
+ break;
+ case 8:
+ for (p = self->ob_item, i = Py_SIZE(self); --i >= 0; p += 8) {
+ char p0 = p[0];
+ char p1 = p[1];
+ char p2 = p[2];
+ char p3 = p[3];
+ p[0] = p[7];
+ p[1] = p[6];
+ p[2] = p[5];
+ p[3] = p[4];
+ p[4] = p3;
+ p[5] = p2;
+ p[6] = p1;
+ p[7] = p0;
+ }
+ break;
+ default:
+ PyErr_SetString(PyExc_RuntimeError,
+ "don't know how to byteswap this array type");
+ return NULL;
+ }
+ Py_INCREF(Py_None);
+ return Py_None;
+}
+
+PyDoc_STRVAR(byteswap_doc,
+"byteswap()\n\
+\n\
+Byteswap all items of the array. If the items in the array are not 1, 2,\n\
+4, or 8 bytes in size, RuntimeError is raised.");
+
+static PyObject *
+array_reverse(arrayobject *self, PyObject *unused)
+{
+ register Py_ssize_t itemsize = self->ob_descr->itemsize;
+ register char *p, *q;
+ /* little buffer to hold items while swapping */
+ char tmp[256]; /* 8 is probably enough -- but why skimp */
+ assert((size_t)itemsize <= sizeof(tmp));
+
+ if (Py_SIZE(self) > 1) {
+ for (p = self->ob_item,
+ q = self->ob_item + (Py_SIZE(self) - 1)*itemsize;
+ p < q;
+ p += itemsize, q -= itemsize) {
+ /* memory areas guaranteed disjoint, so memcpy
+ * is safe (& memmove may be slower).
+ */
+ memcpy(tmp, p, itemsize);
+ memcpy(p, q, itemsize);
+ memcpy(q, tmp, itemsize);
+ }
+ }
+
+ Py_INCREF(Py_None);
+ return Py_None;
+}
+
+PyDoc_STRVAR(reverse_doc,
+"reverse()\n\
+\n\
+Reverse the order of the items in the array.");
+
+static PyObject *
+array_fromfile(arrayobject *self, PyObject *args)
+{
+ PyObject *f;
+ Py_ssize_t n;
+ FILE *fp;
+ if (!PyArg_ParseTuple(args, "On:fromfile", &f, &n))
+ return NULL;
+ fp = PyFile_AsFile(f);
+ if (fp == NULL) {
+ PyErr_SetString(PyExc_TypeError, "arg1 must be open file");
+ return NULL;
+ }
+ if (n > 0) {
+ char *item = self->ob_item;
+ Py_ssize_t itemsize = self->ob_descr->itemsize;
+ size_t nread;
+ Py_ssize_t newlength;
+ size_t newbytes;
+ /* Be careful here about overflow */
+ if ((newlength = Py_SIZE(self) + n) <= 0 ||
+ (newbytes = newlength * itemsize) / itemsize !=
+ (size_t)newlength)
+ goto nomem;
+ PyMem_RESIZE(item, char, newbytes);
+ if (item == NULL) {
+ nomem:
+ PyErr_NoMemory();
+ return NULL;
+ }
+ self->ob_item = item;
+ Py_SIZE(self) += n;
+ self->allocated = Py_SIZE(self);
+ nread = fread(item + (Py_SIZE(self) - n) * itemsize,
+ itemsize, n, fp);
+ if (nread < (size_t)n) {
+ Py_SIZE(self) -= (n - nread);
+ PyMem_RESIZE(item, char, Py_SIZE(self)*itemsize);
+ self->ob_item = item;
+ self->allocated = Py_SIZE(self);
+ if (ferror(fp)) {
+ PyErr_SetFromErrno(PyExc_IOError);
+ clearerr(fp);
+ }
+ else {
+ PyErr_SetString(PyExc_EOFError,
+ "not enough items in file");
+ }
+ return NULL;
+ }
+ }
+ Py_INCREF(Py_None);
+ return Py_None;
+}
+
+PyDoc_STRVAR(fromfile_doc,
+"fromfile(f, n)\n\
+\n\
+Read n objects from the file object f and append them to the end of the\n\
+array. Also called as read.");
+
+
+static PyObject *
+array_fromfile_as_read(arrayobject *self, PyObject *args)
+{
+ if (PyErr_WarnPy3k("array.read() not supported in 3.x; "
+ "use array.fromfile()", 1) < 0)
+ return NULL;
+ return array_fromfile(self, args);
+}
+
+
+static PyObject *
+array_tofile(arrayobject *self, PyObject *f)
+{
+ FILE *fp;
+
+ fp = PyFile_AsFile(f);
+ if (fp == NULL) {
+ PyErr_SetString(PyExc_TypeError, "arg must be open file");
+ return NULL;
+ }
+ if (self->ob_size > 0) {
+ if (fwrite(self->ob_item, self->ob_descr->itemsize,
+ self->ob_size, fp) != (size_t)self->ob_size) {
+ PyErr_SetFromErrno(PyExc_IOError);
+ clearerr(fp);
+ return NULL;
+ }
+ }
+ Py_INCREF(Py_None);
+ return Py_None;
+}
+
+PyDoc_STRVAR(tofile_doc,
+"tofile(f)\n\
+\n\
+Write all items (as machine values) to the file object f. Also called as\n\
+write.");
+
+
+static PyObject *
+array_tofile_as_write(arrayobject *self, PyObject *f)
+{
+ if (PyErr_WarnPy3k("array.write() not supported in 3.x; "
+ "use array.tofile()", 1) < 0)
+ return NULL;
+ return array_tofile(self, f);
+}
+
+
+static PyObject *
+array_fromlist(arrayobject *self, PyObject *list)
+{
+ Py_ssize_t n;
+ Py_ssize_t itemsize = self->ob_descr->itemsize;
+
+ if (!PyList_Check(list)) {
+ PyErr_SetString(PyExc_TypeError, "arg must be list");
+ return NULL;
+ }
+ n = PyList_Size(list);
+ if (n > 0) {
+ char *item = self->ob_item;
+ Py_ssize_t i;
+ PyMem_RESIZE(item, char, (Py_SIZE(self) + n) * itemsize);
+ if (item == NULL) {
+ PyErr_NoMemory();
+ return NULL;
+ }
+ self->ob_item = item;
+ Py_SIZE(self) += n;
+ self->allocated = Py_SIZE(self);
+ for (i = 0; i < n; i++) {
+ PyObject *v = PyList_GetItem(list, i);
+ if ((*self->ob_descr->setitem)(self,
+ Py_SIZE(self) - n + i, v) != 0) {
+ Py_SIZE(self) -= n;
+ if (itemsize && (self->ob_size > PY_SSIZE_T_MAX / itemsize)) {
+ return PyErr_NoMemory();
+ }
+ PyMem_RESIZE(item, char,
+ Py_SIZE(self) * itemsize);
+ self->ob_item = item;
+ self->allocated = Py_SIZE(self);
+ return NULL;
+ }
+ }
+ }
+ Py_INCREF(Py_None);
+ return Py_None;
+}
+
+PyDoc_STRVAR(fromlist_doc,
+"fromlist(list)\n\
+\n\
+Append items to array from list.");
+
+
+static PyObject *
+array_tolist(arrayobject *self, PyObject *unused)
+{
+ PyObject *list = PyList_New(Py_SIZE(self));
+ Py_ssize_t i;
+
+ if (list == NULL)
+ return NULL;
+ for (i = 0; i < Py_SIZE(self); i++) {
+ PyObject *v = getarrayitem((PyObject *)self, i);
+ if (v == NULL) {
+ Py_DECREF(list);
+ return NULL;
+ }
+ PyList_SetItem(list, i, v);
+ }
+ return list;
+}
+
+PyDoc_STRVAR(tolist_doc,
+"tolist() -> list\n\
+\n\
+Convert array to an ordinary list with the same items.");
+
+
+static PyObject *
+array_fromstring(arrayobject *self, PyObject *args)
+{
+ char *str;
+ Py_ssize_t n;
+ int itemsize = self->ob_descr->itemsize;
+ if (!PyArg_ParseTuple(args, "s#:fromstring", &str, &n))
+ return NULL;
+ if (n % itemsize != 0) {
+ PyErr_SetString(PyExc_ValueError,
+ "string length not a multiple of item size");
+ return NULL;
+ }
+ n = n / itemsize;
+ if (n > 0) {
+ char *item = self->ob_item;
+ if ((n > PY_SSIZE_T_MAX - Py_SIZE(self)) ||
+ ((Py_SIZE(self) + n) > PY_SSIZE_T_MAX / itemsize)) {
+ return PyErr_NoMemory();
+ }
+ PyMem_RESIZE(item, char, (Py_SIZE(self) + n) * itemsize);
+ if (item == NULL) {
+ PyErr_NoMemory();
+ return NULL;
+ }
+ self->ob_item = item;
+ Py_SIZE(self) += n;
+ self->allocated = Py_SIZE(self);
+ memcpy(item + (Py_SIZE(self) - n) * itemsize,
+ str, itemsize*n);
+ }
+ Py_INCREF(Py_None);
+ return Py_None;
+}
+
+PyDoc_STRVAR(fromstring_doc,
+"fromstring(string)\n\
+\n\
+Appends items from the string, interpreting it as an array of machine\n\
+values,as if it had been read from a file using the fromfile() method).");
+
+
+static PyObject *
+array_tostring(arrayobject *self, PyObject *unused)
+{
+ if (self->ob_size <= PY_SSIZE_T_MAX / self->ob_descr->itemsize) {
+ return PyString_FromStringAndSize(self->ob_item,
+ Py_SIZE(self) * self->ob_descr->itemsize);
+ } else {
+ return PyErr_NoMemory();
+ }
+}
+
+PyDoc_STRVAR(tostring_doc,
+"tostring() -> string\n\
+\n\
+Convert the array to an array of machine values and return the string\n\
+representation.");
+
+
+
+#ifdef Py_USING_UNICODE
+static PyObject *
+array_fromunicode(arrayobject *self, PyObject *args)
+{
+ Py_UNICODE *ustr;
+ Py_ssize_t n;
+
+ if (!PyArg_ParseTuple(args, "u#:fromunicode", &ustr, &n))
+ return NULL;
+ if (self->ob_descr->typecode != 'u') {
+ PyErr_SetString(PyExc_ValueError,
+ "fromunicode() may only be called on "
+ "type 'u' arrays");
+ return NULL;
+ }
+ if (n > 0) {
+ Py_UNICODE *item = (Py_UNICODE *) self->ob_item;
+ if (Py_SIZE(self) > PY_SSIZE_T_MAX - n) {
+ return PyErr_NoMemory();
+ }
+ PyMem_RESIZE(item, Py_UNICODE, Py_SIZE(self) + n);
+ if (item == NULL) {
+ PyErr_NoMemory();
+ return NULL;
+ }
+ self->ob_item = (char *) item;
+ Py_SIZE(self) += n;
+ self->allocated = Py_SIZE(self);
+ memcpy(item + Py_SIZE(self) - n,
+ ustr, n * sizeof(Py_UNICODE));
+ }
+
+ Py_INCREF(Py_None);
+ return Py_None;
+}
+
+PyDoc_STRVAR(fromunicode_doc,
+"fromunicode(ustr)\n\
+\n\
+Extends this array with data from the unicode string ustr.\n\
+The array must be a type 'u' array; otherwise a ValueError\n\
+is raised. Use array.fromstring(ustr.decode(...)) to\n\
+append Unicode data to an array of some other type.");
+
+
+static PyObject *
+array_tounicode(arrayobject *self, PyObject *unused)
+{
+ if (self->ob_descr->typecode != 'u') {
+ PyErr_SetString(PyExc_ValueError,
+ "tounicode() may only be called on type 'u' arrays");
+ return NULL;
+ }
+ return PyUnicode_FromUnicode((Py_UNICODE *) self->ob_item, Py_SIZE(self));
+}
+
+PyDoc_STRVAR(tounicode_doc,
+"tounicode() -> unicode\n\
+\n\
+Convert the array to a unicode string. The array must be\n\
+a type 'u' array; otherwise a ValueError is raised. Use\n\
+array.tostring().decode() to obtain a unicode string from\n\
+an array of some other type.");
+
+#endif /* Py_USING_UNICODE */
+
+static PyObject *
+array_reduce(arrayobject *array)
+{
+ PyObject *dict, *result, *list;
+
+ dict = PyObject_GetAttrString((PyObject *)array, "__dict__");
+ if (dict == NULL) {
+ if (!PyErr_ExceptionMatches(PyExc_AttributeError))
+ return NULL;
+ PyErr_Clear();
+ dict = Py_None;
+ Py_INCREF(dict);
+ }
+ /* Unlike in Python 3.x, we never use the more efficient memory
+ * representation of an array for pickling. This is unfortunately
+ * necessary to allow array objects to be unpickled by Python 3.x,
+ * since str objects from 2.x are always decoded to unicode in
+ * Python 3.x.
+ */
+ list = array_tolist(array, NULL);
+ if (list == NULL) {
+ Py_DECREF(dict);
+ return NULL;
+ }
+ result = Py_BuildValue(
+ "O(cO)O", Py_TYPE(array), array->ob_descr->typecode, list, dict);
+ Py_DECREF(list);
+ Py_DECREF(dict);
+ return result;
+}
+
+PyDoc_STRVAR(reduce_doc, "Return state information for pickling.");
+
+static PyObject *
+array_sizeof(arrayobject *self, PyObject *unused)
+{
+ Py_ssize_t res;
+ res = sizeof(arrayobject) + self->allocated * self->ob_descr->itemsize;
+ return PyLong_FromSsize_t(res);
+}
+
+PyDoc_STRVAR(sizeof_doc,
+"__sizeof__() -> int\n\
+\n\
+Size of the array in memory, in bytes.");
+
+static PyObject *
+array_get_typecode(arrayobject *a, void *closure)
+{
+ char tc = a->ob_descr->typecode;
+ return PyString_FromStringAndSize(&tc, 1);
+}
+
+static PyObject *
+array_get_itemsize(arrayobject *a, void *closure)
+{
+ return PyInt_FromLong((long)a->ob_descr->itemsize);
+}
+
+static PyGetSetDef array_getsets [] = {
+ {"typecode", (getter) array_get_typecode, NULL,
+ "the typecode character used to create the array"},
+ {"itemsize", (getter) array_get_itemsize, NULL,
+ "the size, in bytes, of one array item"},
+ {NULL}
+};
+
+static PyMethodDef array_methods[] = {
+ {"append", (PyCFunction)array_append, METH_O,
+ append_doc},
+ {"buffer_info", (PyCFunction)array_buffer_info, METH_NOARGS,
+ buffer_info_doc},
+ {"byteswap", (PyCFunction)array_byteswap, METH_NOARGS,
+ byteswap_doc},
+ {"__copy__", (PyCFunction)array_copy, METH_NOARGS,
+ copy_doc},
+ {"count", (PyCFunction)array_count, METH_O,
+ count_doc},
+ {"__deepcopy__",(PyCFunction)array_copy, METH_O,
+ copy_doc},
+ {"extend", (PyCFunction)array_extend, METH_O,
+ extend_doc},
+ {"fromfile", (PyCFunction)array_fromfile, METH_VARARGS,
+ fromfile_doc},
+ {"fromlist", (PyCFunction)array_fromlist, METH_O,
+ fromlist_doc},
+ {"fromstring", (PyCFunction)array_fromstring, METH_VARARGS,
+ fromstring_doc},
+#ifdef Py_USING_UNICODE
+ {"fromunicode", (PyCFunction)array_fromunicode, METH_VARARGS,
+ fromunicode_doc},
+#endif
+ {"index", (PyCFunction)array_index, METH_O,
+ index_doc},
+ {"insert", (PyCFunction)array_insert, METH_VARARGS,
+ insert_doc},
+ {"pop", (PyCFunction)array_pop, METH_VARARGS,
+ pop_doc},
+ {"read", (PyCFunction)array_fromfile_as_read, METH_VARARGS,
+ fromfile_doc},
+ {"__reduce__", (PyCFunction)array_reduce, METH_NOARGS,
+ reduce_doc},
+ {"remove", (PyCFunction)array_remove, METH_O,
+ remove_doc},
+ {"reverse", (PyCFunction)array_reverse, METH_NOARGS,
+ reverse_doc},
+/* {"sort", (PyCFunction)array_sort, METH_VARARGS,
+ sort_doc},*/
+ {"tofile", (PyCFunction)array_tofile, METH_O,
+ tofile_doc},
+ {"tolist", (PyCFunction)array_tolist, METH_NOARGS,
+ tolist_doc},
+ {"tostring", (PyCFunction)array_tostring, METH_NOARGS,
+ tostring_doc},
+#ifdef Py_USING_UNICODE
+ {"tounicode", (PyCFunction)array_tounicode, METH_NOARGS,
+ tounicode_doc},
+#endif
+ {"write", (PyCFunction)array_tofile_as_write, METH_O,
+ tofile_doc},
+ {"__sizeof__", (PyCFunction)array_sizeof, METH_NOARGS,
+ sizeof_doc},
+ {NULL, NULL} /* sentinel */
+};
+
+static PyObject *
+array_repr(arrayobject *a)
+{
+ char buf[256], typecode;
+ PyObject *s, *t, *v = NULL;
+ Py_ssize_t len;
+
+ len = Py_SIZE(a);
+ typecode = a->ob_descr->typecode;
+ if (len == 0) {
+ PyOS_snprintf(buf, sizeof(buf), "array('%c')", typecode);
+ return PyString_FromString(buf);
+ }
+
+ if (typecode == 'c')
+ v = array_tostring(a, NULL);
+#ifdef Py_USING_UNICODE
+ else if (typecode == 'u')
+ v = array_tounicode(a, NULL);
+#endif
+ else
+ v = array_tolist(a, NULL);
+ t = PyObject_Repr(v);
+ Py_XDECREF(v);
+
+ PyOS_snprintf(buf, sizeof(buf), "array('%c', ", typecode);
+ s = PyString_FromString(buf);
+ PyString_ConcatAndDel(&s, t);
+ PyString_ConcatAndDel(&s, PyString_FromString(")"));
+ return s;
+}
+
+static PyObject*
+array_subscr(arrayobject* self, PyObject* item)
+{
+ if (PyIndex_Check(item)) {
+ Py_ssize_t i = PyNumber_AsSsize_t(item, PyExc_IndexError);
+ if (i==-1 && PyErr_Occurred()) {
+ return NULL;
+ }
+ if (i < 0)
+ i += Py_SIZE(self);
+ return array_item(self, i);
+ }
+ else if (PySlice_Check(item)) {
+ Py_ssize_t start, stop, step, slicelength, cur, i;
+ PyObject* result;
+ arrayobject* ar;
+ int itemsize = self->ob_descr->itemsize;
+
+ if (PySlice_GetIndicesEx((PySliceObject*)item, Py_SIZE(self),
+ &start, &stop, &step, &slicelength) < 0) {
+ return NULL;
+ }
+
+ if (slicelength <= 0) {
+ return newarrayobject(&Arraytype, 0, self->ob_descr);
+ }
+ else if (step == 1) {
+ PyObject *result = newarrayobject(&Arraytype,
+ slicelength, self->ob_descr);
+ if (result == NULL)
+ return NULL;
+ memcpy(((arrayobject *)result)->ob_item,
+ self->ob_item + start * itemsize,
+ slicelength * itemsize);
+ return result;
+ }
+ else {
+ result = newarrayobject(&Arraytype, slicelength, self->ob_descr);
+ if (!result) return NULL;
+
+ ar = (arrayobject*)result;
+
+ for (cur = start, i = 0; i < slicelength;
+ cur += step, i++) {
+ memcpy(ar->ob_item + i*itemsize,
+ self->ob_item + cur*itemsize,
+ itemsize);
+ }
+
+ return result;
+ }
+ }
+ else {
+ PyErr_SetString(PyExc_TypeError,
+ "array indices must be integers");
+ return NULL;
+ }
+}
+
+static int
+array_ass_subscr(arrayobject* self, PyObject* item, PyObject* value)
+{
+ Py_ssize_t start, stop, step, slicelength, needed;
+ arrayobject* other;
+ int itemsize;
+
+ if (PyIndex_Check(item)) {
+ Py_ssize_t i = PyNumber_AsSsize_t(item, PyExc_IndexError);
+
+ if (i == -1 && PyErr_Occurred())
+ return -1;
+ if (i < 0)
+ i += Py_SIZE(self);
+ if (i < 0 || i >= Py_SIZE(self)) {
+ PyErr_SetString(PyExc_IndexError,
+ "array assignment index out of range");
+ return -1;
+ }
+ if (value == NULL) {
+ /* Fall through to slice assignment */
+ start = i;
+ stop = i + 1;
+ step = 1;
+ slicelength = 1;
+ }
+ else
+ return (*self->ob_descr->setitem)(self, i, value);
+ }
+ else if (PySlice_Check(item)) {
+ if (PySlice_GetIndicesEx((PySliceObject *)item,
+ Py_SIZE(self), &start, &stop,
+ &step, &slicelength) < 0) {
+ return -1;
+ }
+ }
+ else {
+ PyErr_SetString(PyExc_TypeError,
+ "array indices must be integer");
+ return -1;
+ }
+ if (value == NULL) {
+ other = NULL;
+ needed = 0;
+ }
+ else if (array_Check(value)) {
+ other = (arrayobject *)value;
+ needed = Py_SIZE(other);
+ if (self == other) {
+ /* Special case "self[i:j] = self" -- copy self first */
+ int ret;
+ value = array_slice(other, 0, needed);
+ if (value == NULL)
+ return -1;
+ ret = array_ass_subscr(self, item, value);
+ Py_DECREF(value);
+ return ret;
+ }
+ if (other->ob_descr != self->ob_descr) {
+ PyErr_BadArgument();
+ return -1;
+ }
+ }
+ else {
+ PyErr_Format(PyExc_TypeError,
+ "can only assign array (not \"%.200s\") to array slice",
+ Py_TYPE(value)->tp_name);
+ return -1;
+ }
+ itemsize = self->ob_descr->itemsize;
+ /* for 'a[2:1] = ...', the insertion point is 'start', not 'stop' */
+ if ((step > 0 && stop < start) ||
+ (step < 0 && stop > start))
+ stop = start;
+ if (step == 1) {
+ if (slicelength > needed) {
+ memmove(self->ob_item + (start + needed) * itemsize,
+ self->ob_item + stop * itemsize,
+ (Py_SIZE(self) - stop) * itemsize);
+ if (array_resize(self, Py_SIZE(self) +
+ needed - slicelength) < 0)
+ return -1;
+ }
+ else if (slicelength < needed) {
+ if (array_resize(self, Py_SIZE(self) +
+ needed - slicelength) < 0)
+ return -1;
+ memmove(self->ob_item + (start + needed) * itemsize,
+ self->ob_item + stop * itemsize,
+ (Py_SIZE(self) - start - needed) * itemsize);
+ }
+ if (needed > 0)
+ memcpy(self->ob_item + start * itemsize,
+ other->ob_item, needed * itemsize);
+ return 0;
+ }
+ else if (needed == 0) {
+ /* Delete slice */
+ size_t cur;
+ Py_ssize_t i;
+
+ if (step < 0) {
+ stop = start + 1;
+ start = stop + step * (slicelength - 1) - 1;
+ step = -step;
+ }
+ for (cur = start, i = 0; i < slicelength;
+ cur += step, i++) {
+ Py_ssize_t lim = step - 1;
+
+ if (cur + step >= (size_t)Py_SIZE(self))
+ lim = Py_SIZE(self) - cur - 1;
+ memmove(self->ob_item + (cur - i) * itemsize,
+ self->ob_item + (cur + 1) * itemsize,
+ lim * itemsize);
+ }
+ cur = start + slicelength * step;
+ if (cur < (size_t)Py_SIZE(self)) {
+ memmove(self->ob_item + (cur-slicelength) * itemsize,
+ self->ob_item + cur * itemsize,
+ (Py_SIZE(self) - cur) * itemsize);
+ }
+ if (array_resize(self, Py_SIZE(self) - slicelength) < 0)
+ return -1;
+ return 0;
+ }
+ else {
+ Py_ssize_t cur, i;
+
+ if (needed != slicelength) {
+ PyErr_Format(PyExc_ValueError,
+ "attempt to assign array of size %zd "
+ "to extended slice of size %zd",
+ needed, slicelength);
+ return -1;
+ }
+ for (cur = start, i = 0; i < slicelength;
+ cur += step, i++) {
+ memcpy(self->ob_item + cur * itemsize,
+ other->ob_item + i * itemsize,
+ itemsize);
+ }
+ return 0;
+ }
+}
+
+static PyMappingMethods array_as_mapping = {
+ (lenfunc)array_length,
+ (binaryfunc)array_subscr,
+ (objobjargproc)array_ass_subscr
+};
+
+static const void *emptybuf = "";
+
+static Py_ssize_t
+array_buffer_getreadbuf(arrayobject *self, Py_ssize_t index, const void **ptr)
+{
+ if ( index != 0 ) {
+ PyErr_SetString(PyExc_SystemError,
+ "Accessing non-existent array segment");
+ return -1;
+ }
+ *ptr = (void *)self->ob_item;
+ if (*ptr == NULL)
+ *ptr = emptybuf;
+ return Py_SIZE(self)*self->ob_descr->itemsize;
+}
+
+static Py_ssize_t
+array_buffer_getwritebuf(arrayobject *self, Py_ssize_t index, const void **ptr)
+{
+ if ( index != 0 ) {
+ PyErr_SetString(PyExc_SystemError,
+ "Accessing non-existent array segment");
+ return -1;
+ }
+ *ptr = (void *)self->ob_item;
+ if (*ptr == NULL)
+ *ptr = emptybuf;
+ return Py_SIZE(self)*self->ob_descr->itemsize;
+}
+
+static Py_ssize_t
+array_buffer_getsegcount(arrayobject *self, Py_ssize_t *lenp)
+{
+ if ( lenp )
+ *lenp = Py_SIZE(self)*self->ob_descr->itemsize;
+ return 1;
+}
+
+static PySequenceMethods array_as_sequence = {
+ (lenfunc)array_length, /*sq_length*/
+ (binaryfunc)array_concat, /*sq_concat*/
+ (ssizeargfunc)array_repeat, /*sq_repeat*/
+ (ssizeargfunc)array_item, /*sq_item*/
+ (ssizessizeargfunc)array_slice, /*sq_slice*/
+ (ssizeobjargproc)array_ass_item, /*sq_ass_item*/
+ (ssizessizeobjargproc)array_ass_slice, /*sq_ass_slice*/
+ (objobjproc)array_contains, /*sq_contains*/
+ (binaryfunc)array_inplace_concat, /*sq_inplace_concat*/
+ (ssizeargfunc)array_inplace_repeat /*sq_inplace_repeat*/
+};
+
+static PyBufferProcs array_as_buffer = {
+ (readbufferproc)array_buffer_getreadbuf,
+ (writebufferproc)array_buffer_getwritebuf,
+ (segcountproc)array_buffer_getsegcount,
+ NULL,
+};
+
+static PyObject *
+array_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
+{
+ char c;
+ PyObject *initial = NULL, *it = NULL;
+ struct arraydescr *descr;
+
+ if (type == &Arraytype && !_PyArg_NoKeywords("array.array()", kwds))
+ return NULL;
+
+ if (!PyArg_ParseTuple(args, "c|O:array", &c, &initial))
+ return NULL;
+
+ if (!(initial == NULL || PyList_Check(initial)
+ || PyString_Check(initial) || PyTuple_Check(initial)
+ || (c == 'u' && PyUnicode_Check(initial)))) {
+ it = PyObject_GetIter(initial);
+ if (it == NULL)
+ return NULL;
+ /* We set initial to NULL so that the subsequent code
+ will create an empty array of the appropriate type
+ and afterwards we can use array_iter_extend to populate
+ the array.
+ */
+ initial = NULL;
+ }
+ for (descr = descriptors; descr->typecode != '\0'; descr++) {
+ if (descr->typecode == c) {
+ PyObject *a;
+ Py_ssize_t len;
+
+ if (initial == NULL || !(PyList_Check(initial)
+ || PyTuple_Check(initial)))
+ len = 0;
+ else
+ len = PySequence_Size(initial);
+
+ a = newarrayobject(type, len, descr);
+ if (a == NULL)
+ return NULL;
+
+ if (len > 0) {
+ Py_ssize_t i;
+ for (i = 0; i < len; i++) {
+ PyObject *v =
+ PySequence_GetItem(initial, i);
+ if (v == NULL) {
+ Py_DECREF(a);
+ return NULL;
+ }
+ if (setarrayitem(a, i, v) != 0) {
+ Py_DECREF(v);
+ Py_DECREF(a);
+ return NULL;
+ }
+ Py_DECREF(v);
+ }
+ } else if (initial != NULL && PyString_Check(initial)) {
+ PyObject *t_initial, *v;
+ t_initial = PyTuple_Pack(1, initial);
+ if (t_initial == NULL) {
+ Py_DECREF(a);
+ return NULL;
+ }
+ v = array_fromstring((arrayobject *)a,
+ t_initial);
+ Py_DECREF(t_initial);
+ if (v == NULL) {
+ Py_DECREF(a);
+ return NULL;
+ }
+ Py_DECREF(v);
+#ifdef Py_USING_UNICODE
+ } else if (initial != NULL && PyUnicode_Check(initial)) {
+ Py_ssize_t n = PyUnicode_GET_DATA_SIZE(initial);
+ if (n > 0) {
+ arrayobject *self = (arrayobject *)a;
+ char *item = self->ob_item;
+ item = (char *)PyMem_Realloc(item, n);
+ if (item == NULL) {
+ PyErr_NoMemory();
+ Py_DECREF(a);
+ return NULL;
+ }
+ self->ob_item = item;
+ Py_SIZE(self) = n / sizeof(Py_UNICODE);
+ memcpy(item, PyUnicode_AS_DATA(initial), n);
+ self->allocated = Py_SIZE(self);
+ }
+#endif
+ }
+ if (it != NULL) {
+ if (array_iter_extend((arrayobject *)a, it) == -1) {
+ Py_DECREF(it);
+ Py_DECREF(a);
+ return NULL;
+ }
+ Py_DECREF(it);
+ }
+ return a;
+ }
+ }
+ PyErr_SetString(PyExc_ValueError,
+ "bad typecode (must be c, b, B, u, h, H, i, I, l, L, f or d)");
+ return NULL;
+}
+
+
+PyDoc_STRVAR(module_doc,
+"This module defines an object type which can efficiently represent\n\
+an array of basic values: characters, integers, floating point\n\
+numbers. Arrays are sequence types and behave very much like lists,\n\
+except that the type of objects stored in them is constrained. The\n\
+type is specified at object creation time by using a type code, which\n\
+is a single character. The following type codes are defined:\n\
+\n\
+ Type code C Type Minimum size in bytes \n\
+ 'c' character 1 \n\
+ 'b' signed integer 1 \n\
+ 'B' unsigned integer 1 \n\
+ 'u' Unicode character 2 \n\
+ 'h' signed integer 2 \n\
+ 'H' unsigned integer 2 \n\
+ 'i' signed integer 2 \n\
+ 'I' unsigned integer 2 \n\
+ 'l' signed integer 4 \n\
+ 'L' unsigned integer 4 \n\
+ 'f' floating point 4 \n\
+ 'd' floating point 8 \n\
+\n\
+The constructor is:\n\
+\n\
+array(typecode [, initializer]) -- create a new array\n\
+");
+
+PyDoc_STRVAR(arraytype_doc,
+"array(typecode [, initializer]) -> array\n\
+\n\
+Return a new array whose items are restricted by typecode, and\n\
+initialized from the optional initializer value, which must be a list,\n\
+string or iterable over elements of the appropriate type.\n\
+\n\
+Arrays represent basic values and behave very much like lists, except\n\
+the type of objects stored in them is constrained.\n\
+\n\
+Methods:\n\
+\n\
+append() -- append a new item to the end of the array\n\
+buffer_info() -- return information giving the current memory info\n\
+byteswap() -- byteswap all the items of the array\n\
+count() -- return number of occurrences of an object\n\
+extend() -- extend array by appending multiple elements from an iterable\n\
+fromfile() -- read items from a file object\n\
+fromlist() -- append items from the list\n\
+fromstring() -- append items from the string\n\
+index() -- return index of first occurrence of an object\n\
+insert() -- insert a new item into the array at a provided position\n\
+pop() -- remove and return item (default last)\n\
+read() -- DEPRECATED, use fromfile()\n\
+remove() -- remove first occurrence of an object\n\
+reverse() -- reverse the order of the items in the array\n\
+tofile() -- write all items to a file object\n\
+tolist() -- return the array converted to an ordinary list\n\
+tostring() -- return the array converted to a string\n\
+write() -- DEPRECATED, use tofile()\n\
+\n\
+Attributes:\n\
+\n\
+typecode -- the typecode character used to create the array\n\
+itemsize -- the length in bytes of one array item\n\
+");
+
+static PyObject *array_iter(arrayobject *ao);
+
+static PyTypeObject Arraytype = {
+ PyVarObject_HEAD_INIT(NULL, 0)
+ "array.array",
+ sizeof(arrayobject),
+ 0,
+ (destructor)array_dealloc, /* tp_dealloc */
+ 0, /* tp_print */
+ 0, /* tp_getattr */
+ 0, /* tp_setattr */
+ 0, /* tp_compare */
+ (reprfunc)array_repr, /* tp_repr */
+ 0, /* tp_as_number*/
+ &array_as_sequence, /* tp_as_sequence*/
+ &array_as_mapping, /* tp_as_mapping*/
+ 0, /* tp_hash */
+ 0, /* tp_call */
+ 0, /* tp_str */
+ PyObject_GenericGetAttr, /* tp_getattro */
+ 0, /* tp_setattro */
+ &array_as_buffer, /* tp_as_buffer*/
+ Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_WEAKREFS, /* tp_flags */
+ arraytype_doc, /* tp_doc */
+ 0, /* tp_traverse */
+ 0, /* tp_clear */
+ array_richcompare, /* tp_richcompare */
+ offsetof(arrayobject, weakreflist), /* tp_weaklistoffset */
+ (getiterfunc)array_iter, /* tp_iter */
+ 0, /* tp_iternext */
+ array_methods, /* tp_methods */
+ 0, /* tp_members */
+ array_getsets, /* tp_getset */
+ 0, /* tp_base */
+ 0, /* tp_dict */
+ 0, /* tp_descr_get */
+ 0, /* tp_descr_set */
+ 0, /* tp_dictoffset */
+ 0, /* tp_init */
+ PyType_GenericAlloc, /* tp_alloc */
+ array_new, /* tp_new */
+ PyObject_Del, /* tp_free */
+};
+
+
+/*********************** Array Iterator **************************/
+
+typedef struct {
+ PyObject_HEAD
+ Py_ssize_t index;
+ arrayobject *ao;
+ PyObject * (*getitem)(struct arrayobject *, Py_ssize_t);
+} arrayiterobject;
+
+static PyTypeObject PyArrayIter_Type;
+
+#define PyArrayIter_Check(op) PyObject_TypeCheck(op, &PyArrayIter_Type)
+
+static PyObject *
+array_iter(arrayobject *ao)
+{
+ arrayiterobject *it;
+
+ if (!array_Check(ao)) {
+ PyErr_BadInternalCall();
+ return NULL;
+ }
+
+ it = PyObject_GC_New(arrayiterobject, &PyArrayIter_Type);
+ if (it == NULL)
+ return NULL;
+
+ Py_INCREF(ao);
+ it->ao = ao;
+ it->index = 0;
+ it->getitem = ao->ob_descr->getitem;
+ PyObject_GC_Track(it);
+ return (PyObject *)it;
+}
+
+static PyObject *
+arrayiter_next(arrayiterobject *it)
+{
+ assert(PyArrayIter_Check(it));
+ if (it->index < Py_SIZE(it->ao))
+ return (*it->getitem)(it->ao, it->index++);
+ return NULL;
+}
+
+static void
+arrayiter_dealloc(arrayiterobject *it)
+{
+ PyObject_GC_UnTrack(it);
+ Py_XDECREF(it->ao);
+ PyObject_GC_Del(it);
+}
+
+static int
+arrayiter_traverse(arrayiterobject *it, visitproc visit, void *arg)
+{
+ Py_VISIT(it->ao);
+ return 0;
+}
+
+static PyTypeObject PyArrayIter_Type = {
+ PyVarObject_HEAD_INIT(NULL, 0)
+ "arrayiterator", /* tp_name */
+ sizeof(arrayiterobject), /* tp_basicsize */
+ 0, /* tp_itemsize */
+ /* methods */
+ (destructor)arrayiter_dealloc, /* tp_dealloc */
+ 0, /* tp_print */
+ 0, /* tp_getattr */
+ 0, /* tp_setattr */
+ 0, /* tp_compare */
+ 0, /* tp_repr */
+ 0, /* tp_as_number */
+ 0, /* tp_as_sequence */
+ 0, /* tp_as_mapping */
+ 0, /* tp_hash */
+ 0, /* tp_call */
+ 0, /* tp_str */
+ PyObject_GenericGetAttr, /* tp_getattro */
+ 0, /* tp_setattro */
+ 0, /* tp_as_buffer */
+ Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,/* tp_flags */
+ 0, /* tp_doc */
+ (traverseproc)arrayiter_traverse, /* tp_traverse */
+ 0, /* tp_clear */
+ 0, /* tp_richcompare */
+ 0, /* tp_weaklistoffset */
+ PyObject_SelfIter, /* tp_iter */
+ (iternextfunc)arrayiter_next, /* tp_iternext */
+ 0, /* tp_methods */
+};
+
+
+/*********************** Install Module **************************/
+
+/* No functions in array module. */
+static PyMethodDef a_methods[] = {
+ {NULL, NULL, 0, NULL} /* Sentinel */
+};
+
+
+PyMODINIT_FUNC
+initarray(void)
+{
+ PyObject *m;
+
+ Arraytype.ob_type = &PyType_Type;
+ PyArrayIter_Type.ob_type = &PyType_Type;
+ m = Py_InitModule3("array", a_methods, module_doc);
+ if (m == NULL)
+ return;
+
+ Py_INCREF((PyObject *)&Arraytype);
+ PyModule_AddObject(m, "ArrayType", (PyObject *)&Arraytype);
+ Py_INCREF((PyObject *)&Arraytype);
+ PyModule_AddObject(m, "array", (PyObject *)&Arraytype);
+ /* No need to check the error here, the caller will do that */
+}
|