635c4a5e61
Make useless_ptr_null_checks smarter about some std functions This teaches the `useless_ptr_null_checks` lint that some std functions can't ever return null pointers, because they need to point to valid data, get references as input, etc. This is achieved by introducing an `#[rustc_never_returns_null_ptr]` attribute and adding it to these std functions (gated behind bootstrap `cfg_attr`). Later on, the attribute could maybe be used to tell LLVM that the returned pointer is never null. I don't expect much impact of that though, as the functions are pretty shallow and usually the input data is already never null. Follow-up of PR #113657 Fixes #114442 |
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| .. | ||
| converts.rs | ||
| count.rs | ||
| error.rs | ||
| iter.rs | ||
| lossy.rs | ||
| mod.rs | ||
| pattern.rs | ||
| traits.rs | ||
| validations.rs | ||