Improve the docs for the write and writeln macros
This change reduces duplication by linking the documentation for
`writeln!` to `write!`. It also restructures the `write!` documentation
to read in a more logical manner (I hope; feedback would be welcome).
Updates #29329, #29381
Implement all PartialOrd methods for Reverse
When making a forwarding wrapper we must in general forward all methods,
so that we use the type's own `lt` for example instead of the default.
Example important case: f32's partial_cmp does several operations but
its lt is a primitive.
Follow up on #40720
This change reduces duplication by linking the documentation for
`writeln!` to `write!`. It also restructures the `write!` documentation
to read in a more logical manner.
Updates #29329, #29381
When making a forwarding wrapper we must in general forward all methods,
so that we use the type's own `lt` for example instead of the default.
Example important case: f32's partial_cmp does several operations but
its lt is a primitive.
libcore: fix compilation on 16bit target (MSP430).
Since PR #40601 has been merged, libcore no longer compiles on MSP430.
The reason is this code in `break_patterns`:
```rust
let mut random = len;
random ^= random << 13;
random ^= random >> 17;
random ^= random << 5;
random &= modulus - 1;
```
It assumes that `len` is at least a 32 bit integer.
As a workaround replace `break_patterns` with an empty function for 16bit targets.
cc @stjepang
cc @alexcrichton
Added core::cmp::Reverse for sort_by_key reverse sorting
I'm not sure if this is the best way to go about proposing this feature but it's pretty useful. It allows you to use `sort_by_key` and return tuples where a single item is then reversed to how it normally sorts.
I quite miss something like this in Rust currently though I'm not sure if this is the best way to implement it.
libcore: fix compilation on 16bit target (MSP430).
Since PR #40601 has been merged, libcore no longer compiles on MSP430.
The reason is this code in `break_patterns`:
```rust
let mut random = len;
random ^= random << 13;
random ^= random >> 17;
random ^= random << 5;
random &= modulus - 1;
```
It assumes that `len` is at least a 32 bit integer.
As a workaround replace `break_patterns` with an empty function for 16bit targets.
cc @stjepang
cc @alexcrichton
Link ParseBoolError to from_str method of bool
Referencing task in #29375. Sorry for not opening another branch on my fork for this. Was working on this early this morning and forgot to branch off master
