rust/src/libcollections/btree/node.rs, branch 1.3.0

Make `align_of` behave like `min_align_of`.

2015-06-25T00:00:43+00:00

This removes a footgun, since it is a reasonable assumption to make that pointers to `T` will be aligned to `align_of::()`. This also matches the behaviour of C/C++. `min_align_of` is now deprecated. Closes #21611.

Remove #[cfg(stage0)] items.

2015-05-27T08:19:02+00:00

Allow for better optimizations of iterators for zero-sized types

2015-05-15T13:30:22+00:00

Using regular pointer arithmetic to iterate collections of zero-sized types doesn't work, because we'd get the same pointer all the time. Our current solution is to convert the pointer to an integer, add an offset and then convert back, but this inhibits certain optimizations. What we should do instead is to convert the pointer to one that points to an i8*, and then use a LLVM GEP instructions without the inbounds flag to perform the pointer arithmetic. This allows to generate pointers that point outside allocated objects without causing UB (as long as you don't dereference them), and it wraps around using two's complement, i.e. it behaves exactly like the wrapping_* operations we're currently using, with the added benefit of LLVM being able to better optimize the resulting IR.

Register new snapshots

2015-04-29T00:23:45+00:00

Fill in missing implementation

2015-04-15T03:26:04+00:00

Negative case of `len()` -> `is_empty()`

2015-04-15T03:26:03+00:00

`s/([^$\s]+\.)len\($ [(?:!=)>] 0/!$1is_empty()/g`

Positive case of `len()` -> `is_empty()`

2015-04-15T03:26:03+00:00

`s/(?

Fallout in public-facing and semi-public-facing libs

2015-04-01T15:23:45+00:00

std: Standardize (input, output) param orderings

2015-03-30T21:08:40+00:00

This functions swaps the order of arguments to a few functions that previously took (output, input) parameters, but now take (input, output) parameters (in that order). The affected functions are: * ptr::copy * ptr::copy_nonoverlapping * slice::bytes::copy_memory * intrinsics::copy * intrinsics::copy_nonoverlapping Closes #22890 [breaking-change]

rollup merge of #23738: alexcrichton/snapshots

2015-03-27T17:08:40+00:00

Conflicts: src/libcollections/vec.rs