[libc++] Remove `operator!=` from `type_info` in C++20
Implements part of:
* P1614R2 The Mothership has Landed
Reviewed By: #libc, Mordante
Differential Revision: https://reviews.llvm.org/D130853
GitOrigin-RevId: 619e8f46f3c77cb97464cf64e01872e6246f8875
diff --git a/docs/Status/SpaceshipProjects.csv b/docs/Status/SpaceshipProjects.csv
index 87e0c60..ecf0431 100644
--- a/docs/Status/SpaceshipProjects.csv
+++ b/docs/Status/SpaceshipProjects.csv
@@ -12,6 +12,7 @@
| `weak_order_fallback <https://reviews.llvm.org/D111514>`_
| `partial_order_fallback <https://reviews.llvm.org/D111514>`_",None,Arthur O'Dwyer,|Complete| [#note-strongorder]_
| `[alg.three.way] <https://wg21.link/alg.three.way>`_,| `lexicographical_compare_three_way <https://reviews.llvm.org/D80902>`_,[comparisons.three.way],Christopher Di Bella,|In Progress|
+| `[type.info] <https://wg21.link/type.info>`_,| `typeinfo <https://reviews.llvm.org/D130853>`_,None,Adrian Vogelsgesang,|Complete|
| `[coroutine.handle.compare] <https://wg21.link/coroutine.handle.compare>`_,| `coroutine_handle <https://reviews.llvm.org/D109433>`_,[comparisons.three.way],Chuanqi Xu,|Complete|
| `[pairs.spec] <https://wg21.link/pairs.spec>`_,| `pair <https://reviews.llvm.org/D107721>`_,[expos.only.func],Kent Ross,|Complete|
| `[syserr.errcat.nonvirtuals] <https://wg21.link/syserr.errcat.nonvirtuals>`_,| error_category,[comparisons.three.way],Unassigned,|Not Started|
diff --git a/include/typeinfo b/include/typeinfo
index 1f31608..d81a309 100644
--- a/include/typeinfo
+++ b/include/typeinfo
@@ -22,7 +22,7 @@
virtual ~type_info();
bool operator==(const type_info& rhs) const noexcept;
- bool operator!=(const type_info& rhs) const noexcept;
+ bool operator!=(const type_info& rhs) const noexcept; // removed in C++20
bool before(const type_info& rhs) const noexcept;
size_t hash_code() const noexcept;
@@ -112,9 +112,11 @@
return __compare(__arg) == 0;
}
+#if _LIBCPP_STD_VER <= 17
_LIBCPP_INLINE_VISIBILITY
bool operator!=(const type_info& __arg) const _NOEXCEPT
{ return !operator==(__arg); }
+#endif
};
#else // !defined(_LIBCPP_ABI_MICROSOFT)
@@ -337,9 +339,11 @@
return __impl::__eq(__type_name, __arg.__type_name);
}
+#if _LIBCPP_STD_VER <= 17
_LIBCPP_INLINE_VISIBILITY
bool operator!=(const type_info& __arg) const _NOEXCEPT
{ return !operator==(__arg); }
+#endif
};
#endif // defined(_LIBCPP_ABI_MICROSOFT)