fix potential dereferencing of null (#2810) #80

	name: fsanitizer

	on: [push, pull_request]

	concurrency:
	group: ${{ github.ref }}-${{ github.head_ref }}-fsanitizer
	cancel-in-progress: true

	jobs:
	fsanitizer:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4

	- name: Get submodules
	run: \|
	git submodule update --init
	cd external/Microphysics
	git fetch; git checkout development
	cd ../amrex
	git fetch; git checkout development
	cd ../..

	- name: Install dependencies
	run: \|
	sudo apt-get update -y -qq
	sudo apt-get -qq -y install curl cmake jq clang g++>=9.3.0

	- name: Compile subchandra
	run: \|
	cd Exec/science/subchandra
	make FSANITIZER=TRUE USE_MPI=FALSE -j 4

	- name: Run subchandra
	run: \|
	cd Exec/science/subchandra
	./Castro2d.gnu.SMPLSDC.ex inputs_2d.N14.coarse amr.max_level=1 max_step=1 amr.n_cell=320 640

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