Add strftime

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1977 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 4 insertions, 11 deletions

diff --git a/nuttx/lib/lib_mktime.c b/nuttx/lib/lib_mktime.c
index 594a0672b..46e16c50f 100644
--- a/nuttx/lib/lib_mktime.c
+++ b/nuttx/lib/lib_mktime.c
@@ -86,7 +86,7 @@
  ****************************************************************************/
 
 #ifdef CONFIG_GREGORIAN_TIME
-time_t mktime(struct tm *tp)
+time_t mktime(const struct tm *tp)
 {
   time_t ret;
   time_t jdn;
@@ -114,7 +114,7 @@ time_t mktime(struct tm *tp)
  * seconds, etc. apply.
  */
 
-time_t mktime(struct tm *tp)
+time_t mktime(const struct tm *tp)
 {
   unsigned int days;
 
@@ -126,16 +126,9 @@ time_t mktime(struct tm *tp)
 
   days += (tp->tm_year - 69) >> 2;
 
-  /* Add in the days up to the beginning of this month (ignoring any possible leap day). */
+  /* Add in the days up to the beginning of this month. */
 
-  days += (time_t)g_daysbeforemonth[tp->tm_mon];
-
-  /* Add in the leap day for this year (months are zero based) */
-
-  if (tp->tm_mon >= 2 && clock_isleapyear(tp->tm_year + 1900))
-    {
-      days++;
-    }
+  days += (time_t)clock_daysbeforemonth(tp->tm_mon, clock_isleapyear(tp->tm_year + 1900));
 
   /* Add in the days since the beginning of this month (days are 1-based). */