static void timeDiff(struct timeval* const end, const struct timeval* const start);
static void usage(const char* const programName);
static gint gcfCompareAnalysis(gconstpointer a, gconstpointer b);
static void timeDiff(struct timeval* const end, const struct timeval* const start);
static void usage(const char* const programName);
static gint gcfCompareAnalysis(gconstpointer a, gconstpointer b);