bpo-35606: Implement math.prod (GH-11359)
diff --git a/Modules/clinic/mathmodule.c.h b/Modules/clinic/mathmodule.c.h
index 82a4c4a..b99a8de 100644
--- a/Modules/clinic/mathmodule.c.h
+++ b/Modules/clinic/mathmodule.c.h
@@ -556,4 +556,41 @@
exit:
return return_value;
}
-/*[clinic end generated code: output=0664f30046da09fe input=a9049054013a1b77]*/
+
+PyDoc_STRVAR(math_prod__doc__,
+"prod($module, iterable, /, *, start=1)\n"
+"--\n"
+"\n"
+"Calculate the product of all the elements in the input iterable.\n"
+"\n"
+"The default start value for the product is 1.\n"
+"\n"
+"When the iterable is empty, return the start value. This function is\n"
+"intended specifically for use with numeric values and may reject\n"
+"non-numeric types.");
+
+#define MATH_PROD_METHODDEF \
+ {"prod", (PyCFunction)(void(*)(void))math_prod, METH_FASTCALL|METH_KEYWORDS, math_prod__doc__},
+
+static PyObject *
+math_prod_impl(PyObject *module, PyObject *iterable, PyObject *start);
+
+static PyObject *
+math_prod(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
+{
+ PyObject *return_value = NULL;
+ static const char * const _keywords[] = {"", "start", NULL};
+ static _PyArg_Parser _parser = {"O|$O:prod", _keywords, 0};
+ PyObject *iterable;
+ PyObject *start = NULL;
+
+ if (!_PyArg_ParseStackAndKeywords(args, nargs, kwnames, &_parser,
+ &iterable, &start)) {
+ goto exit;
+ }
+ return_value = math_prod_impl(module, iterable, start);
+
+exit:
+ return return_value;
+}
+/*[clinic end generated code: output=20505690ca6fe402 input=a9049054013a1b77]*/