v0.5.0

Changes Since 0.4.2

• Moved iterator types into thunderdome::iter. (#24)
• Changed Index::from_bits to return Option<Index> instead of Index, and no longer panic. (#31)

v0.4.2

Changes Since 0.4.1

• Fixed miri warning for Arena::get2_mut. (#29)
• Added Arena::insert_at and Arena::insert_at_slot for inserting into specific indexes or slots. (#30)

v0.4.1

Changes Since 0.4.0

• Implemented IntoIterator for &Arena and &mut Arena. (#18)
• Added Arena::get2_mut for getting two mutable references of different slots at once. (#22)

v0.4.0

Changes Since 0.3.0

• Added Index::slot for extracting the slot portion of an index.
• Added Arena::contains_slot for checking whether a slot is occupied in a given Arena and resolving its Index if so.
• Added Arena::get_by_slot and Arena::get_by_slot_mut for retrieving an entry by its slot, ignoring generation.
• Added Arena::remove_by_slot for removing an entry by its slot, ignoring generation.
• Added Arena::contains for checking whether an Index is valid for a given Arena.
• Added Arena::retain for conveniently removing entries which do not satisfy a given predicate.
• Fix Arena::iter_mut to return mutable references.

v0.2.0

Changes Since 0.1.1

• Bumped MSRV to 1.34.1.
• Reduced size of Index by limiting Arena to 2^32 elements and 2^32 generations per slot.
  • These limits should not be hit in practice, but will consistently trigger panics.
• Changed generation counter to wrap instead of panic on overflow.
  • Collisions where an index using the same slot and a colliding generation on [1, 2^32] should be incredibly unlikely.

v0.1.1

Changes Since 0.1.0

• Added Arena::with_capacity for preallocating space.
• Added Arena::len, Arena::capacity, and Arena::is_empty.
• Improved panic-on-wrap guarantees, especially around unsafe code.
• Simplified and documented implementation.

v0.1.0

• Initial release
• Pretty much completely untested
• You probably shouldn't use this version