It sure would need to be guarded by `if (m_type)`, otherwise `what()` fails and masks that no error was set (see update unit test). But since `error_already_set` is copyable, there is no point in releasing m_type, m_value, m_trace, therefore we can just as well avoid the runtime overhead of force-building `m_lazy_what`, it may never be used.
* Add frozenset, and allow it cast to std::set
For the reverse direction, std::set still casts to set. This is in concordance with the behavior for sequence containers, where e.g. tuple casts to std::vector but std::vector casts to list.
Extracted from #3886.
* Rename set_base to any_set to match Python C API
since this will be part of pybind11 public API
* PR: static_cast, anyset
* Add tests for frozenset
and rename anyset methods
* Remove frozenset default ctor, add tests
Making frozenset non-default constructible means that we need to adjust pyobject_caster to not require that its value is default constructible, by initializing value to a nil handle. This also allows writing C++ functions taking anyset, and is arguably a performance improvement, since there is no need to allocate an object that will just be replaced by load.
Add some more tests, including anyset::empty, anyset::size, set::add and set::clear.
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* Add rationale to `pyobject_caster` default ctor
* Remove ineffectual protected: access control
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* Update cast.h
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* Move definition to detail/common, change name, apply everywhere
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* Rename debug_enabled in tests to detailed_error_messages_enabled
* Added constructor based on typenum, based on PyArray_DescrFromType
Added accessors for typenum, alignment, byteorder and flags fields of
PyArray_Descr struct.
* Added tests for new py::dtype constructor, and for accessors
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* Fixed the comment for alignment method
* Update include/pybind11/numpy.h
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* Adds set_name method of pybind11::capsule class
This calls PyCapsule_SetName on the underlying capsule object.
modified destructors to query capsules's Name
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Handle possible exception thrown by PyCapsule_GetName
Also removed accidentally reintroduced use of `const char *&`.
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Fixed function name
* Introduced private static function to reuse get_name_or_throw
* added tests for capsule renaming
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* handle python error in flight
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* Initialized PyObject * variables to nullptr
* use write-unraisable if PyCapsule_GetName raises
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* get_name_or_throw->get_name_no_throw
If PyCapsule_GetName raises an error we should write as unraisable
to consume it and notify user, and then restore the error in flight if any.
This way this method called from destructor would not modify interpreter
error state.
* used error_scope struct
* Renamed get_name_no_throw->get_name_in_error_scope
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* Cleanup cast_safe<void> specialization
Replace explicit specialization of cast_safe<void> with SFINAE.
It's better for SFINAE cases to cover all type-sets rather than mixing SFINAE and explicit specialization.
Extracted from #3674
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* Update cast.h
Use detail::none_of<> as suggested
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* Update cast.h
Reorder:
If TEMP_REF
If VOID
if (!VOID && !TEMP_REF)
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* Make slice constructor consistent
* Add more missing std::move for ref steals
* Add missing perfect forwarding for arg_v ctor
* Add missing move in arg_v constructor
* Revert "Add missing move in arg_v constructor"
This reverts commit 126fc7c524.
* Add another missing move in cast.h
* Optimize object move ctor
* Don't do useless move
* Make move ctor same as nb
* Make obj move ctor same as nb
* Revert changes which break MSVC
* feature: support compilers that use std::experimental::filesystem such as gcc7
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* only use this feature if cpp17
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* more specific namespace alias + style
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* move to pybind11 namespace
* no namespace alias
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* Add type_caster<std::monostate> for std::variant
Add type_caster<std::monostate>, allowing std::variant<std::monostate, ...>
* Add variant<std::monostate, ...> test methods
* Add std::monostate tests
* Update test_stl.py
Remove erroneous extra tests
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* Update test fn name
* And update the doc() test
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