[avr-libc-commit] [2358] Reverted month_length() back to using the 'knuckles' algorithm.

[Mike Rice]

Revision: 2358
          http://svn.sv.gnu.org/viewvc/?view=rev&root=avr-libc&revision=2358
Author:   swfltek
Date:     2013-04-23 22:30:20 +0000 (Tue, 23 Apr 2013)
Log Message:
-----------
Reverted month_length() back to using the 'knuckles' algorithm. Easier to 
understand, and a couple words less FLASH.

Modified Paths:
--------------
    trunk/avr-libc/libc/time/month_length.c

Modified: trunk/avr-libc/libc/time/month_length.c
===================================================================
--- trunk/avr-libc/libc/time/month_length.c     2013-04-21 16:25:30 UTC (rev 
2357)
+++ trunk/avr-libc/libc/time/month_length.c     2013-04-23 22:30:20 UTC (rev 
2358)
@@ -38,7 +38,11 @@
 uint8_t
 month_length(int year, uint8_t month)
 {
-    if (month == 2) return 28 + is_leap_year(year);
+    if (month == 2)
+        return 28 + is_leap_year(year);
 
-    return 30 + ((month + month / 8) & 1);
+    /* 'knuckles' algorithm */
+    if (month > 7)
+        month++;
+    return 30 + (month & 1);
 }