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https://github.com/RYDE-WORK/pybind11.git
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a6d1ff2460
* fix: make PYBIND11_WARNING_POP actually pop clang diagnostics
* fix: ignore -Wgnu-zero-variadic-macro-arguments on clang
* Revert "fix: ignore -Wgnu-zero-variadic-macro-arguments on clang"
This reverts commit d310959bf5e6194033aa1825ab181a76289d790f.
* C++20 modernization: Use `__VA_OPT__(, ) __VA_ARGS__` in `PYBIND11_DECLARE_HOLDER_TYPE()`
* Disable `__VA_OPT__(, ) __VA_ARGS__` usage for MSVC (it is unclear to rwgk why it does not work).
This is the beginning of the error message:
```
D:\a\pybind11\pybind11\tests\test_smart_ptr.cpp(285,1): error C2143: syntax error: missing ')' before ',' [D:\a\pybind11\pybind11\build\tests\pybind11_tests.vcxproj]
D:\a\pybind11\pybind11\tests\test_smart_ptr.cpp(285,1): error C2059: syntax error: ')' [D:\a\pybind11\pybind11\build\tests\pybind11_tests.vcxproj]
```
* Add `PYBIND11_WARNING_DISABLE_CLANG("-Wgnu-zero-variadic-macro-arguments")` in test_smart_ptr.cpp
This is the error message:
```
/__w/pybind11/pybind11/tests/test_smart_ptr.cpp:287:51: error: must specify at least one argument for '...' parameter of variadic macro [-Werror,-Wgnu-zero-variadic-macro-arguments]
PYBIND11_DECLARE_HOLDER_TYPE(T, std::shared_ptr<T>)
^
/__w/pybind11/pybind11/include/pybind11/cast.h:885:13: note: macro 'PYBIND11_DECLARE_HOLDER_TYPE' defined here
^
```
* Also add `PYBIND11_WARNING_DISABLE_CLANG("-Wgnu-zero-variadic-macro-arguments")` in test_virtual_functions.cpp
* Also add `PYBIND11_WARNING_DISABLE_CLANG("-Wgnu-zero-variadic-macro-arguments")` in test_embed/test_interpreter.cpp
* Undo all changes except the original push -> pop fix.
* 1. Add `PYBIND11_WARNING_DISABLE_CLANG("-Wgnu-zero-variadic-macro-arguments")` near the top of pybind11/pybind11.h; 2. Change `PYBIND11_DECLARE_HOLDER_TYPE` macro to side-step the only remaining clang warning-as-error (this is still needed even for clang 18).
Alternatively the warning suppression could be moved into pybind11/cast.h, but this commit limits the warning suppression to smaller scope within include/pybind11.
---------
Co-authored-by: Ralf W. Grosse-Kunstleve <rgrossekunst@nvidia.com>