3227e35765
CTFE: throw unsupported error when partially overwriting a pointer Currently, during CTFE, when a write to memory would overwrite parts of a pointer, we make the remaining parts of that pointer "uninitialized". This is probably not what users expect, so if this ever happens they will be quite confused about why some of the data just vanishes for seemingly no good reason. So I propose we change this to abort CTFE when that happens, to at last avoid silently doing the wrong thing. Cc https://github.com/rust-lang/rust/issues/87184 Our CTFE test suite still seems to pass. However, we should probably crater this, and I want to do some tests with Miri as well. |
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