fix out of range panic #248

	name: Go
	on:
	push:
	branches:
	- master
	pull_request:
	jobs:
	race-test:
	name: Test with -race
	strategy:
	matrix:
	os: [ "ubuntu-latest", "macos-latest", "windows-latest" ]
	go-version: [ "1.19", "1.20", "1.21" ]
	runs-on: ${{ matrix.os }}
	steps:
	- name: checkout
	uses: actions/checkout@v4
	- name: setup Go ${{ matrix.go-version }}
	uses: actions/setup-go@v4
	with:
	go-version: ${{ matrix.go-version }}
	- name: test
	run: \|
	make test

	i386-test:
	name: Test in i386
	strategy:
	matrix:
	os: [ "ubuntu-latest", "windows-latest" ]
	go-version: [ "1.19", "1.20", "1.21" ]
	runs-on: ${{ matrix.os }}
	env:
	GOARCH: "386"
	steps:
	- name: checkout
	uses: actions/checkout@v4
	- name: setup Go ${{ matrix.go-version }}
	uses: actions/setup-go@v4
	with:
	go-version: ${{ matrix.go-version }}
	- name: test
	run: \|
	make simple-test

	ycat:
	name: ycat
	runs-on: ubuntu-latest
	steps:
	- name: checkout
	uses: actions/checkout@v4
	- name: setup Go
	uses: actions/setup-go@v4
	with:
	go-version: "1.21"
	- name: build
	run: \|
	make ycat/build
	- name: run
	run: \|
	./ycat .github/workflows/go.yml

	coverage:
	name: Coverage
	runs-on: ubuntu-latest
	steps:
	- name: checkout
	uses: actions/checkout@v4
	- name: setup Go
	uses: actions/setup-go@v4
	with:
	go-version: "1.21"
	- name: measure coverage
	run: \|
	make cover
	- uses: codecov/codecov-action@v4
	with:
	fail_ci_if_error: true
	verbose: true
	token: ${{ secrets.CODECOV_TOKEN }}

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