Rollup of 7 pull requests #83376
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Rollup of 7 pull requests #83376
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The panic on division by zero is expected, but the panic on overflow is somewhat surprising (since most arithmetic operations panic on overflow only when `debug_assertions` is enabled). As a result, it's helpful to document this behavior.
The panic when the right operand is `0` is expected, but the overflow-related panic (which occurs only for `MIN % -1`) is somewhat surprising for two reasons: a return value of `0` would be reasonable in this case, and, for most arithmetic operations, overflow results in panic only when `debug_assertions` is enabled. As a result, it's helpful to document this behavior.
Add license metadata for std dependencies These five crates are in the dependency tree of `std` but lack license metadata: - `alloc` - `core` - `panic_abort` - `panic_unwind` - `unwind` Querying the dependency tree of `std` is a useful thing to be able to do, since these crates will typically be linked into Rust binaries. Tools show the license fields missing, as seen in rust-lang#67014 (comment). This PR adds the license field for the five crates, based on the license of the `std` package and this repo as a whole. I also added the `repository` and `descriptions` fields, since those seem useful. For `description`, I copied text from top-level comments for the respective modules - except for `unwind` which has none. I also note that rust-lang#73530 attempted to add license metadata for all crates in this repo, but was rejected because there was question about some of them. I hope that this smaller change, focusing only on the runtime dependencies, will be easier to review. cc `@Mark-Simulacrum` `@Lokathor`
…=nikomatsakis
Document panicking cases for integer division and remainder
This PR documents the cases when integer division and remainder operations panic. These operations panic in two cases: division by zero and overflow.
It's surprising that these operations always panic on overflow, unlike most other arithmetic operations, which panic on overflow only when `debug_assertions` is enabled. The panic on overflow for the remainder is also surprising because a return value of `0` would be reasonable in this case. ("Overflow" occurs only for `MIN % -1`.) Since the panics on overflow are somewhat surprising, they should be documented.
I guess it's worth asking: is panic on overflow (even when `debug_assertions` is disabled) the intended behavior? If not, what's the best way forward?
Clarify non-exact length in the Iterator::take documentation There's an example which demonstrates incomplete length case, but it'd be best to explain it right from the start.
…r=Dylan-DPC Fix test for rust-lang#82270 Fixes a test in rust-lang#82270 to require the arm llvm component
post-drop-elab check-const: explain why we still check qualifs r? `@oli-obk`
Improve error message for unassigned query provider Fixes: rust-lang#83122 r? `@jyn514` This implements the change we agreed on. Thanks!
…lacrum SplitInclusive is public API
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@bors r+ rollup=never p=5 |
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📌 Commit ce06787 has been approved by |
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☀️ Test successful - checks-actions |
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asm!#82270)Failed merges:
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