fixed clang-tidy error #39

	name: ci
	on: [push]
	jobs:
	build-linux:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: init
	run: sudo apt update -yqq && sudo apt install -yqq ninja-build g++-13 clang-15
	- name: configure gcc
	run: cmake -S . --preset=default -B build -DCMAKE_CXX_COMPILER=g++-13
	- name: configure clang
	run: cmake -S . --preset=ninja-clang -B clang -DCMAKE_CXX_COMPILER=clang++-15
	- name: build gcc
	run: cmake --build build --config=Release
	- name: build clang
	run: cmake --build clang --config=Release
	- name: test
	run: cd build && ctest -C Release
	build-windows:
	runs-on: windows-latest
	steps:
	- uses: actions/checkout@v2
	- name: configure
	run: cmake -S . --preset=vs22 -B build
	- name: build
	run: cmake --build build --config=Release
	- name: test
	run: cd build && ctest -C Release

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