Fix compiler warnings #353

	# GitHub Action to run cpplint
	#
	# The cpplint configuration file is:
	#
	# ./CPPLINT.cfg
	#
	name: Cpplint

	on: [push, pull_request]

	jobs:
	cpplint:
	runs-on: ubuntu-latest
	name: Cpplint
	steps:
	- name: Checkout
	uses: actions/checkout@v3
	- name: Setup
	uses: actions/setup-python@v4
	with:
	python-version: '3.10'
	- name: Install Cpplint
	run: \|
	pip install cpplint
	- name: Cpplint Core Library
	run: \|
	cpplint ./gz-waves/include/gz/waves/*.hh
	cpplint ./gz-waves/src/.cc ./gz-waves/src/.hh
	- name: Cpplint Tests
	run: \|
	cpplint ./gz-waves/test/performance/*.cc
	cpplint ./gz-waves/test/plots/*.cc
	- name: Cpplint Hydrodynamics Plugin
	run: \|
	cpplint --filter=-whitespace/blank_line,-whitespace/indent,-build/header_guard,-whitespace/newline \
	./gz-waves/src/systems/hydrodynamics/*.hh \
	./gz-waves/src/systems/hydrodynamics/*.cc
	- name: Cpplint DynamicGeometry Plugin
	run: \|
	cpplint --filter=-whitespace/blank_line,-whitespace/indent,-build/header_guard \
	./gz-waves/src/systems/dynamic/*.hh \
	./gz-waves/src/systems/dynamic/*.cc
	- name: Cpplint Waves Plugin
	run: \|
	cpplint --filter=-whitespace/blank_line,-whitespace/indent \
	./gz-waves/include/gz/common/*.hh
	cpplint --filter=-whitespace/blank_line,-whitespace/indent,-build/header_guard \
	./gz-waves/src/systems/waves/*.hh
	cpplint --filter=-whitespace/blank_line,-whitespace/indent,-build/header_guard,-whitespace/newline \
	./gz-waves/src/systems/waves/*.cc

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