Merge topic 'cpp23'

9f3c70a333 CUDA, CXX, OBJCXX: C++23 support with Clang 12
af7e1545c8 CUDA, CXX: Remove HAS_FULL_SUPPORT for C++17 and 20

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !5576

Help/prop_gbl/CMAKE_CUDA_KNOWN_FEATURES.rst

@@ -30,3 +30,6 @@ The features known to this version of CMake are:
 
 ``cuda_std_20``
   Compiler mode is at least CUDA/C++ 20.
+
+``cuda_std_23``
+  Compiler mode is at least CUDA/C++ 23.

Help/prop_gbl/CMAKE_CXX_KNOWN_FEATURES.rst

@@ -37,6 +37,8 @@ but it does not necessarily imply complete conformance to that standard.
 ``cxx_std_20``
   Compiler mode is at least C++ 20.
 
+``cxx_std_23``
+  Compiler mode is at least C++ 23.
 
 Low level individual compile features
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Help/prop_tgt/CUDA_STANDARD.rst

@@ -9,7 +9,7 @@ This property specifies the CUDA/C++ standard whose features are requested
 to build this target.  For some compilers, this results in adding a
 flag such as ``-std=gnu++11`` to the compile line.
 
-Supported values are ``98``, ``03``, ``11``, ``14``, ``17``, ``20``.
+Supported values are ``98``, ``03``, ``11``, ``14``, ``17``, ``20``, ``23``.
 
 If the value requested does not result in a compile flag being added for
 the compiler in use, a previous standard flag will be added instead.  This

Help/prop_tgt/CXX_STANDARD.rst

@@ -11,7 +11,7 @@ flag such as ``-std=gnu++11`` to the compile line.  For compilers that
 have no notion of a standard level, such as Microsoft Visual C++ before
 2015 Update 3, this has no effect.
 
-Supported values are ``98``, ``11``, ``14``, ``17``, and ``20``.
+Supported values are ``98``, ``11``, ``14``, ``17``, ``20``, ``23``.
 
 If the value requested does not result in a compile flag being added for
 the compiler in use, a previous standard flag will be added instead.  This

Help/prop_tgt/OBJCXX_STANDARD.rst

@@ -9,7 +9,7 @@ This property specifies the ObjC++ standard whose features are requested
 to build this target.  For some compilers, this results in adding a
 flag such as ``-std=gnu++11`` to the compile line.
 
-Supported values are ``98``, ``11``, ``14``, ``17``, and ``20``.
+Supported values are ``98``, ``11``, ``14``, ``17``, ``20``, ``23``.
 
 If the value requested does not result in a compile flag being added for
 the compiler in use, a previous standard flag will be added instead.  This

Help/release/dev/cpp-cuda-23.rst

@@ -0,0 +1,7 @@
+cpp-cuda-23
+-----------
+
+* :prop_tgt:`CXX_STANDARD`, :prop_tgt:`CUDA_STANDARD`,
+  :prop_tgt:`OBJCXX_STANDARD` and the
+  :manual:`Compile Features <cmake-compile-features(7)>` functionality gained
+  support for C++23.