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These are adequately covered by the Tuple2 trait.
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Also move Void to std::any, move drop to std::mem and reexport in
prelude.
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All tests passing. #5268
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Tests ok
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The following are renamed:
* `min_value` => `MIN`
* `max_value` => `MAX`
* `bits` => `BITS`
* `bytes` => `BYTES`
All tests pass, except for `run-pass/phase-syntax-link-does-resolve.rs`. I doubt that failure is related, though.
Fixes #10010.
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The following are renamed:
* `min_value` => `MIN`
* `max_value` => `MAX`
* `bits` => `BITS`
* `bytes` => `BYTES`
Fixes #10010.
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Consensus leaned in favour of using rev instead of flip.
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Renamed the invert() function in iter.rs to flip().
Also renamed the Invert<T> type to Flip<T>.
Some related code comments changed. Documentation that I could find has
been updated, and all the instances I could locate where the
function/type were called have been updated as well.
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appropriate use
Zero and One have precise definitions in mathematics. Documentation has been added to describe the appropriate uses for these traits and the laws that they should satisfy.
For more information regarding these identities, see the following wikipedia pages:
- http://wikipedia.org/wiki/Additive_identity
- http://wikipedia.org/wiki/Multiplicative_identity
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The `print!` and `println!` macros are now the preferred method of printing, and so there is no reason to export the `stdio` functions in the prelude. The functions have also been replaced by their macro counterparts in the tutorial and other documentation so that newcomers don't get confused about what they should be using.
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Also remove all instances of 'self within the codebase.
This fixes #10889.
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compile-fail tests, run-fail tests, and run-pass tests.
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Closes #8606
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Who doesn't like a massive renaming?
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std::iter: Introduce .by_ref() adaptor
Creates a wrapper around a mutable reference to the iterator.
This is useful to allow applying iterator adaptors while still
retaining ownership of the original iterator value.
Example::
let mut xs = range(0, 10);
// sum the first five values
let partial_sum = xs.by_ref().take(5).fold(0, |a, b| a + b);
assert!(partial_sum == 10);
// xs.next() is now `5`
assert!(xs.next() == Some(5));
---
This adaptor requires the user to have good understanding of
iterators or what a particular adaptor does. There could be some
pitfalls here with the iterator protocol, it's mostly the same issues
as other places regarding what happens after the iterator
returns None for the first time.
There could also be other ways to achieve the same thing, for
example Implementing iterator on `&mut T` itself:
`impl <T: Iterator<..>> Iterator for &mut T` but that would only
lead to confusion I think.
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Uses the new snapshots to kill the old `loop` and introduce the new `continue`.
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Closes #9467
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It is simply defined as `f64` across every platform right now.
A use case hasn't been presented for a `float` type defined as the
highest precision floating point type implemented in hardware on the
platform. Performance-wise, using the smallest precision correct for the
use case greatly saves on cache space and allows for fitting more
numbers into SSE/AVX registers.
If there was a use case, this could be implemented as simply a type
alias or a struct thanks to `#[cfg(...)]`.
Closes #6592
The mailing list thread, for reference:
https://mail.mozilla.org/pipermail/rust-dev/2013-July/004632.html
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Creates a wrapper around a mutable reference to the iterator.
This is useful to allow applying iterator adaptors while still
retaining ownership of the original iterator value.
Example::
let mut xs = range(0, 10);
// sum the first five values
let partial_sum = xs.by_ref().take(5).fold(0, |a, b| a + b);
assert!(partial_sum == 10);
// xs.next() is now `5`
assert!(xs.next() == Some(5));
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find src -name '*.rs' | xargs sed -i '' 's/~~~.*{\.rust}/```rust/g'
find src -name '*.rs' | xargs sed -i '' 's/ ~~~$/ ```/g'
find src -name '*.rs' | xargs sed -i '' 's/^~~~$/ ```/g'
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Hopefull this will make our libstd docs appear a little more "full".
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