Richard Smith 31919afa24 Allow conversion between T* and Cpp.void*. (#6575) ...

Support an implicit conversion from `T*` to `Cpp.void*` and to `const
Cpp.void*`, and an `unsafe as` conversion in the opposite direction.

In order to support C++ calls taking and returning `void*` (which get
mapped to Carbon `Optional(Cpp.void*)`, also support conversions from
`Optional(T)` to `Optional(U)` if there's a conversion from `T` to `U`.

Fix a bug in `OptionalStorage` for `T*` where its `HasValue` was exactly
backwards.

2026-01-12 16:32:15 +00:00

..

BUILD

Enable using our own C++ runtimes across the board (#6549)

2026-01-07 00:16:50 +00:00

hello_world.carbon

Allow conversion between T* and Cpp.void*. (#6575)

2026-01-12 16:32:15 +00:00