Add a couple comments

1 files changed, 5 insertions, 0 deletions

diff --git a/src/calculer.c b/src/calculer.c
index 6b279ec..8d13052 100644
--- a/src/calculer.c
+++ b/src/calculer.c
@@ -41,12 +41,15 @@ calculer_rand(void)
 	return lower + rand()%(upper-lower);
 }
 
+/* Compute the number of milliseconds TP contains. */
 static intptr_t
 tp_ms(struct timespec const *tp)
 {
 	return tp->tv_sec*1000 + tp->tv_nsec/1000000;
 }
 
+/* Called just before prompting the user. The returned pointer will be given
+   back as a parameter of measure_after. */
 static void *
 measure_before(void)
 {
@@ -55,6 +58,7 @@ measure_before(void)
 	return (void *)tp_ms(&tp);
 }
 
+/* Called just after the user prompt has been read and checked. */
 int
 measure_after(void *data, int correct)
 {
@@ -111,6 +115,7 @@ main(int argc, char *argv[])
 
 	srand(time(NULL));
 
+	/* Store the prefix "YYYY-MM-DD" in LOGBUF. */
 	time_t now = time(NULL);
 	struct tm *tm = localtime(&now);
 	size_t bytes_written = strftime(logbuf, sizeof(logbuf), "%F\t", tm);