test: select-column
	@echo "===== Testing select-column ====="
	./select-column select-column-input-1.txt 2 > select-column-output-1.txt
	@echo "[diff between your results and the expected results]"
	@diff select-column-output-1.txt select-column-expected-1.txt;\
        if [ $$? -eq 0 ]; then echo "TEST PASSED"; else echo "TEST FAILED"; fi
	@echo

select-column: select-column.c
	@echo "===== Building select-column ====="
	gcc -g -Wall -Werror -o $@ $<
	@echo

clean:
	rm -f select-column
