Add matrix. #5

	name: CI
	on: [push]

	# Automatically stop old builds on the same branch/PR
	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true

	defaults:
	run:
	shell: bash -el {0}

	jobs:
	pre-commit-checks:
	name: Pre-commit checks
	timeout-minutes: 30
	runs-on: ubuntu-latest
	steps:
	- name: Checkout branch
	uses: actions/checkout@v4
	- name: Run pre-commit-conda
	uses: quantco/pre-commit-conda@v1

	tests:
	name: "Tests"
	timeout-minutes: 30
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	CXX_COMPILER: ["g++", "clang++"]
	steps:
	- name: Checkout branch
	uses: actions/checkout@v4
	with:
	ref: ${{ github.head_ref }}
	fetch-depth: 0
	- name: Compile and run
	run: \|
	${{ matrix.CXX_COMPILER }} INIReaderTest.cpp -o INIReaderTest.out
	./INIReaderTest.out

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