c++: add fallback mappings for C++23

tycho · nirbheek · commit 64543603d1e8 · 2023-10-17T13:55:50.000+05:30
The c++23 mappings apply to current production compilers (GCC, Clang).

Signed-off-by: Steven Noonan &lt;steven@uplinklabs.net&gt;
Signed-off-by: Patrick Williams &lt;patrick@stwcx.xyz&gt;
Backported-by: Nirbheek Chauhan &lt;nirbheek.chauhan@gmail.com&gt;
diff --git a/mesonbuild/compilers/cpp.py b/mesonbuild/compilers/cpp.py
@@ -154,6 +154,8 @@ def _find_best_cpp_std(self, cpp_std: str) -> str:
             'gnu++17': 'gnu++1z',
             'c++20': 'c++2a',
             'gnu++20': 'gnu++2a',
+            'c++23': 'c++2b',
+            'gnu++23': 'gnu++2b',
         }
 
         # Currently, remapping is only supported for Clang, Elbrus and GCC

Original file line number	Diff line number	Diff line change
`@@ -154,6 +154,8 @@ def _find_best_cpp_std(self, cpp_std: str) -> str:`
`154`	`154`	`'gnu++17': 'gnu++1z',`
`155`	`155`	`'c++20': 'c++2a',`
`156`	`156`	`'gnu++20': 'gnu++2a',`
	`157`	`+ 'c++23': 'c++2b',`
	`158`	`+ 'gnu++23': 'gnu++2b',`
`157`	`159`	`}`
`158`	`160`
`159`	`161`	`# Currently, remapping is only supported for Clang, Elbrus and GCC`