Add impls for &Wrapping. Also Sum, Product impls for both Wrapping and &Wrapping.
#37356
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Looks good to me. |
cristicbz
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Sum and Product impls for Wrapping&Wrapping. Also Sum, Product impls for both Wrapping and &Wrapping.
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| // implements the unary operator "op &T" | ||
| // based on "op T" where T is expected to be `Copy`able | ||
| macro_rules! forward_ref_unop { |
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These are moved from std::ops so that they can be shared for the Wrapping implementations.
| } | ||
| } | ||
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| #[stable(feature = "iter_arith_traits", since = "1.12.0")] | ||
| impl<'a> Product<&'a $a> for $a { | ||
| fn product<I: Iterator<Item=&'a $a>>(iter: I) -> $a { | ||
| iter.cloned().fold(1, Mul::mul) |
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The cloned stuff is not necessary (and wasn't before) since Add::add etc are implemented for references of primitives (as well as, now, Wrapping).
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@bluss I added a different commit to implement ops on (I can split this into two PRs, but I thought getting rid of the |
alexcrichton
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@rfcbot fcp merge Looks good to me! |
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Team member @alexcrichton has proposed to merge this. The next step is review by the rest of the tagged teams: No concerns currently listed. Once these reviewers reach consensus, this will enter its final comment period. If you spot a major issue that hasn't been raised at any point in this process, please speak up! See this document for info about what commands tagged team members can give me. |
brson
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🔔 This is now entering its final comment period, as per the review above. 🔔 psst @alexcrichton, I wasn't able to add the |
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@bors: r+ |
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📌 Commit df0e5a9 has been approved by |
Add impls for `&Wrapping`. Also `Sum`, `Product` impls for both `Wrapping` and `&Wrapping`.
There are two changes here (split into two commits):
- Ops for references to `&Wrapping` (`Add`, `Sub`, `Mul` etc.) similar to the way they are implemented for primitives.
- Impls for `iter::{Sum,Product}` for `Wrapping`.
As far as I know `impl` stability attributes don't really matter so I didn't bother breaking up the macro for two different kinds of stability. Happy to change if it does matter.
Add impls for `&Wrapping`. Also `Sum`, `Product` impls for both `Wrapping` and `&Wrapping`.
There are two changes here (split into two commits):
- Ops for references to `&Wrapping` (`Add`, `Sub`, `Mul` etc.) similar to the way they are implemented for primitives.
- Impls for `iter::{Sum,Product}` for `Wrapping`.
As far as I know `impl` stability attributes don't really matter so I didn't bother breaking up the macro for two different kinds of stability. Happy to change if it does matter.
There are two changes here (split into two commits):
&Wrapping(Add,Sub,Muletc.) similar to the way they are implemented for primitives.iter::{Sum,Product}forWrapping.As far as I know
implstability attributes don't really matter so I didn't bother breaking up the macro for two different kinds of stability. Happy to change if it does matter.