librustc: Remove the broken overloaded assign-ops from the language. #7076
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This is the backwards-incompatible part of per-binding-site "mut".
…ff trans, I think?
They evaluated the receiver twice. They should be added back with `AddAssign`, `SubAssign`, etc., traits.
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Nice! I'm looking forward to having proper versions of these for rust-gmp :) |
flip1995
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Apr 22, 2021
Fix a FP in `missing_const_for_fn` where a function that calls a standard library function whose constness is unstable is considered as being able to be a const function. Fixes rust-lang#5995. The core change is the move from `rustc_mir::const_eval::is_min_const_fn` to `rustc_mir::const_eval::is_const_fn`. I'm not clear about the difference in their purpose between them so I'm not sure if it's acceptable to call `qualify_min_const_fn::is_min_const_fn` this way now. --- changelog: `missing_const_for_fn`: No longer lints when an unstably const function is called
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r? @graydon