fixes for a couple of decode tests; add -Wparentheses to the makefile to catch these errors
diff --git a/Makefile b/Makefile
index 62d7c5c..fc37293 100644
--- a/Makefile
+++ b/Makefile
@@ -26,7 +26,7 @@
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
# IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.# IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-CFLAGS=-I inc -I test -Os -Wall -Werror -pedantic-errors -Wextra -Wshadow
+CFLAGS=-I inc -I test -Os -Wall -Werror -pedantic-errors -Wextra -Wshadow -Wparentheses
QCBOR_OBJ=src/UsefulBuf.o src/qcbor_encode.o src/qcbor_decode.o src/ieee754.o
QCBOR_OBJ2=$(QCBOR_OBJ) src/qcbor_decode_malloc.o