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Add some more comments to time conversion

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This commit is contained in:
Howard Chu 2004-09-28 12:36:34 +00:00
parent e014144f98
commit ef76bcaf79
1 changed files with 5 additions and 1 deletions
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6
libraries/liblutil/utils.c
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@ -173,12 +173,15 @@ int lutil_tm2time( struct lutil_tm *tm, struct lutil_timet *tt )
/* add in days in this month */
tt->tt_sec += (tm->tm_mday - 1);
/* this function can handle a range of about 17408 years... */
/* 86400 seconds in a day, divided by 128 = 675 */
tt->tt_sec *= 675;
/* move high 7 bits into tt_gsec */
tt->tt_gsec = tt->tt_sec >> 25;
tt->tt_sec -= tt->tt_gsec << 25;
/* convert to hours */
/* get hours */
sec = tm->tm_hour;
/* convert to minutes */
@ -189,6 +192,7 @@ int lutil_tm2time( struct lutil_tm *tm, struct lutil_timet *tt )
sec *= 60L;
sec += tm->tm_sec;
/* add remaining seconds */
tt->tt_sec <<= 7;
tt->tt_sec += sec;