FlatStack: use OffsetContainer iter #227

	name: "Test Suite"
	on:
	push:
	branches:
	- main
	pull_request:

	jobs:
	test:
	strategy:
	matrix:
	os:
	- ubuntu
	- macos
	- windows
	toolchain:
	- stable
	- 1.78
	name: cargo test on ${{ matrix.os }}, rust ${{ matrix.toolchain }}
	runs-on: ${{ matrix.os }}-latest
	steps:
	- uses: actions/checkout@v4
	- uses: actions-rust-lang/setup-rust-toolchain@v1
	with:
	components: clippy
	toolchain: ${{ matrix.toolchain }}
	- name: Cargo test
	run: cargo test
	- name: Cargo clippy
	run: cargo clippy

	# Check formatting with rustfmt
	formatting:
	name: cargo fmt
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	# Ensure rustfmt is installed and setup problem matcher
	- uses: actions-rust-lang/setup-rust-toolchain@v1
	with:
	components: rustfmt
	- name: Rustfmt Check
	uses: actions-rust-lang/rustfmt@v1

	bench:
	name: cargo bench
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: actions-rust-lang/setup-rust-toolchain@v1
	with:
	toolchain: nightly
	- name: Cargo bench
	run: cargo +nightly bench \| tee output.txt
	# Run `github-action-benchmark` action
	- name: Store benchmark result
	uses: benchmark-action/github-action-benchmark@v1
	with:
	tool: 'cargo'
	output-file-path: output.txt
	fail-on-alert: true

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