Add implementation of dpnp.frexp (#2635)

The PR adds the implementation of `dpnp.frexp` and extends the framework
to support a unary function with two output arrays, including new
wrappers in `ufunc` pybind11 extension and new python class
`DPNPUnaryTwoOutputsFunc`.

Author: antonwolfy

CHANGELOG.md

@@ -19,6 +19,7 @@ Also, that release drops support for Python 3.9, making Python 3.10 the minimum
 * Added implementation of `dpnp.scipy.special.erfinv` and `dpnp.scipy.special.erfcinv` [#2624](https://github.com/IntelPython/dpnp/pull/2624)
 * Enabled support of Python 3.14 [#2631](https://github.com/IntelPython/dpnp/pull/2631)
 * Added implementation of `dpnp.ndarray.tolist` method [#2652](https://github.com/IntelPython/dpnp/pull/2652)
+* Added implementation of `dpnp.frexp` [#2635](https://github.com/IntelPython/dpnp/pull/2635)
 
 ### Changed
 

doc/conf.py

@@ -11,7 +11,11 @@
 from sphinx.ext.autodoc import FunctionDocumenter
 from sphinx.ext.napoleon import NumpyDocstring, docstring
 
-from dpnp.dpnp_algo.dpnp_elementwise_common import DPNPBinaryFunc, DPNPUnaryFunc
+from dpnp.dpnp_algo.dpnp_elementwise_common import (
+    DPNPBinaryFunc,
+    DPNPUnaryFunc,
+    DPNPUnaryTwoOutputsFunc,
+)
 
 try:
     import comparison_generator
@@ -206,7 +210,9 @@
 
 # -- Options for todo extension ----------------------------------------------
 def _can_document_member(member, *args, **kwargs):
-    if isinstance(member, (DPNPBinaryFunc, DPNPUnaryFunc)):
+    if isinstance(
+        member, (DPNPBinaryFunc, DPNPUnaryFunc, DPNPUnaryTwoOutputsFunc)
+    ):
         return True
     return orig(member, *args, **kwargs)
 

dpnp/backend/extensions/common/ext/details/common_internal.hpp

@@ -26,6 +26,10 @@
 // THE POSSIBILITY OF SUCH DAMAGE.
 //*****************************************************************************
 
+#pragma once
+
+#include <algorithm>
+
 #include "ext/common.hpp"
 #include "utils/type_dispatch.hpp"
 #include <pybind11/pybind11.h>

dpnp/backend/extensions/common/ext/details/validation_utils_internal.hpp

@@ -26,6 +26,8 @@
 // THE POSSIBILITY OF SUCH DAMAGE.
 //*****************************************************************************
 
+#pragma once
+
 #include <pybind11/numpy.h>
 #include <pybind11/pybind11.h>