Use gmp operator overload instead of gmp_pow for certain PHP versions… #806

	name: CI

	on: [ push, pull_request ]

	jobs:
	phpunit:
	name: Unit tests (PHP ${{ matrix.php-versions }})
	runs-on: ubuntu-latest
	strategy:
	matrix:
	php-versions:
	- 8.0
	- 8.1
	- 8.2
	- 8.3
	steps:
	- name: Checkout
	uses: actions/checkout@v4

	- name: Setup PHP
	uses: shivammathur/setup-php@v2
	with:
	php-version: ${{ matrix.php-versions }}
	extensions: openssl, sodium, hash, gmp
	tools: composer

	- name: Get Composer cache directory
	id: composer-cache
	run: echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT

	- name: Cache dependencies
	uses: actions/cache@v4
	with:
	path: ${{ steps.composer-cache.outputs.dir }}
	key: "php${{ matrix.php-versions }}-composer-${{ hashFiles('**/composer.json') }}"
	restore-keys: "php${{ matrix.php-versions }}-composer-"

	- name: Install dependencies
	run: composer update && composer install

	- name: Run tests
	run: composer test

	phpstan:
	runs-on: ubuntu-latest
	name: Static analysis
	steps:
	- name: Checkout
	uses: actions/checkout@v4

	- name: Setup PHP
	uses: shivammathur/setup-php@v2
	with:
	php-version: 8.1
	tools: composer

	- name: Get Composer cache directory
	id: composer-cache
	run: echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT

	- name: Cache dependencies
	uses: actions/cache@v4
	with:
	path: ${{ steps.composer-cache.outputs.dir }}
	key: "phpstan-composer-${{ hashFiles('**/composer.json') }}"
	restore-keys: "phpstan-composer-"

	- name: Install dependencies
	run: composer update && composer install

	- name: Perform static analysis
	run: composer phpstan

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