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-rw-r--r--Modules/itertoolsmodule.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/Modules/itertoolsmodule.c b/Modules/itertoolsmodule.c
index 8be62ce..db7cdfe 100644
--- a/Modules/itertoolsmodule.c
+++ b/Modules/itertoolsmodule.c
@@ -2057,6 +2057,18 @@ product_dealloc(productobject *lz)
Py_TYPE(lz)->tp_free(lz);
}
+static PyObject *
+product_sizeof(productobject *lz, void *unused)
+{
+ Py_ssize_t res;
+
+ res = sizeof(productobject);
+ res += PyTuple_GET_SIZE(lz->pools) * sizeof(Py_ssize_t);
+ return PyLong_FromSsize_t(res);
+}
+
+PyDoc_STRVAR(sizeof_doc, "Returns size in memory, in bytes.");
+
static int
product_traverse(productobject *lz, visitproc visit, void *arg)
{
@@ -2226,6 +2238,8 @@ static PyMethodDef product_methods[] = {
reduce_doc},
{"__setstate__", (PyCFunction)product_setstate, METH_O,
setstate_doc},
+ {"__sizeof__", (PyCFunction)product_sizeof, METH_NOARGS,
+ sizeof_doc},
{NULL, NULL} /* sentinel */
};
@@ -2366,6 +2380,16 @@ combinations_dealloc(combinationsobject *co)
Py_TYPE(co)->tp_free(co);
}
+static PyObject *
+combinations_sizeof(combinationsobject *co, void *unused)
+{
+ Py_ssize_t res;
+
+ res = sizeof(combinationsobject);
+ res += co->r * sizeof(Py_ssize_t);
+ return PyLong_FromSsize_t(res);
+}
+
static int
combinations_traverse(combinationsobject *co, visitproc visit, void *arg)
{
@@ -2537,6 +2561,8 @@ static PyMethodDef combinations_methods[] = {
reduce_doc},
{"__setstate__", (PyCFunction)combinations_setstate, METH_O,
setstate_doc},
+ {"__sizeof__", (PyCFunction)combinations_sizeof, METH_NOARGS,
+ sizeof_doc},
{NULL, NULL} /* sentinel */
};
@@ -2695,6 +2721,16 @@ cwr_dealloc(cwrobject *co)
Py_TYPE(co)->tp_free(co);
}
+static PyObject *
+cwr_sizeof(cwrobject *co, void *unused)
+{
+ Py_ssize_t res;
+
+ res = sizeof(cwrobject);
+ res += co->r * sizeof(Py_ssize_t);
+ return PyLong_FromSsize_t(res);
+}
+
static int
cwr_traverse(cwrobject *co, visitproc visit, void *arg)
{
@@ -2854,6 +2890,8 @@ static PyMethodDef cwr_methods[] = {
reduce_doc},
{"__setstate__", (PyCFunction)cwr_setstate, METH_O,
setstate_doc},
+ {"__sizeof__", (PyCFunction)cwr_sizeof, METH_NOARGS,
+ sizeof_doc},
{NULL, NULL} /* sentinel */
};
@@ -3030,6 +3068,17 @@ permutations_dealloc(permutationsobject *po)
Py_TYPE(po)->tp_free(po);
}
+static PyObject *
+permutations_sizeof(permutationsobject *po, void *unused)
+{
+ Py_ssize_t res;
+
+ res = sizeof(permutationsobject);
+ res += PyTuple_GET_SIZE(po->pool) * sizeof(Py_ssize_t);
+ res += po->r * sizeof(Py_ssize_t);
+ return PyLong_FromSsize_t(res);
+}
+
static int
permutations_traverse(permutationsobject *po, visitproc visit, void *arg)
{
@@ -3235,6 +3284,8 @@ static PyMethodDef permuations_methods[] = {
reduce_doc},
{"__setstate__", (PyCFunction)permutations_setstate, METH_O,
setstate_doc},
+ {"__sizeof__", (PyCFunction)permutations_sizeof, METH_NOARGS,
+ sizeof_doc},
{NULL, NULL} /* sentinel */
};