2025-09-08  Rui Duan  <ruiduan@member.fsf.org>

	v0.4.0

	* src/vec.rs: Rename `Vec` to `SVec`.  Add ergonomic features:
	Clone, Debug, FromIterator (used by `iterator::collect()),
	Default, and macro `svec`.

	* src/scanner.rs: BREAKING CHANGES.
	- Delete old methods `next_i32`, `next_i64`, next_f64`.
	- Add new methods with generic methods: `next_int<T>`,
	`next_float<T>`.

	* src/io.rs: BREAKING CHANGES.
	- Rename file input `In` to `FileIn`.
	- Create new `In` as a versatile base, and let `StdIn` and `FileIn`
	"inherit" from `In`.  The inheritance is simulated by `Deref` and
	`DerefMut`.
	- `read_all_i32` is changed to generic method `read_all_ints<T>`.
	Sematic change: the old file input `read_all_i32` opens a new file
	handle to read the whole file, while the new `read_all_ints` uses
	the internal `Scanner` to continue from the current cursor to read
	to the end of the file.

	* src/primitive.rs: Add traits `PrimInt` and `PrimFloat`.  They
	are used for trait bounds for integers and floating point types.

2025-09-05  Rui Duan  <ruiduan@member.fsf.org>

	v0.3.0

	* src/vec.rs: Add complete vector implementation
	`algs4_rs::vec::Vec`.

	* src/stack.rs: Add Linked-list Stack `src/stack/linkedstack.rs`
	and `algs4_rs::vec::Vec`-based stack `src/stack/resizingstack.rs`.

	* src/bag/resizingbag.rs: Change `src/bag/vecbag.rs` to
	`src/bag/resizingbag.rs` and replace the backend `std::vec::Vec`
	with our `algs4_rs::vec::Vec`.

	* examples/test_vec_mem_leak.rs: Add a template for testing memory
	leak.

2025-09-02  Rui Duan  <ruiduan@member.fsf.org>

	v0.2.0

	* src/bag.rs: Add Linked-list Bag `src/bag/linkedbag.rs` and
	`std::vec::Vec`-based bag `src/bag/vecbag.rs`.

	* src/io.rs: Add method `StdIn::read_string`.

2025-08-28  Rui Duan  <ruiduan@member.fsf.org>

	v0.1.0

	* src/bst.rs, examples/bst.rs: Add binary search tree and example
	client.

	* src/binary_search.rs, examples/binary_search.rs: Add binary
	search algorithm for integers, add example client.

	* src/linear_regression.rs: Add `LinearRegression` utility.

	* src/twosun.rs, src/twosum_fast.rs: Add Two-Sum algorithm.

	* src/threesum.rs, src/threesum_fast.rs: Add Three-Sum algorithm.

	* src/scanner.rs: Add `Scanner` utility for streaming input.

	* src/io.rs: Add `StdIn` and `In` (for file input) utilities.

	* src/error.rs: Add `Algs4Error` type.

	* examples/doubling_ratio.rs: Add example program for Doubling
	Ratio method.

	* examples/doubling_test.rs: Add example program for Doubling Test
	method.
