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Rollup merge of #98783 - RalfJung:jumpscares, r=fee1-dead

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interpret: make a comment less scary

This slipped past my review: "has no meaning" could be read as "is undefined behavior". That is certainly not what we mean so be more clear.
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Dylan DPC 2022-07-02 12:23:42 +05:30 committed by GitHub
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compiler/rustc_const_eval/src/interpret/cast.rs
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@ -202,7 +202,7 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
let ptr = self.scalar_to_ptr(scalar)?; let ptr = self.scalar_to_ptr(scalar)?;
match ptr.into_pointer_or_addr() { match ptr.into_pointer_or_addr() {
Ok(ptr) => M::expose_ptr(self, ptr)?, Ok(ptr) => M::expose_ptr(self, ptr)?,
Err(_) => {} // do nothing, exposing an invalid pointer has no meaning Err(_) => {} // Do nothing, exposing an invalid pointer (`None` provenance) is a NOP.
}; };
Ok(self.cast_from_int_like(scalar, src.layout, cast_ty)?.into()) Ok(self.cast_from_int_like(scalar, src.layout, cast_ty)?.into())
} }