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authorEric Andersen <andersen@codepoet.org>2000-10-09 20:06:30 +0000
committerEric Andersen <andersen@codepoet.org>2000-10-09 20:06:30 +0000
commitc1fe19d4c1db610692365472a90f4661e48449c1 (patch)
treed0b0219ffca3c4c4256f55c4aea4513e43d6aecd /libc/misc/time/tm_conv.c
parent9efafb8bbc7408b04643dcd53825d971577b4d9d (diff)
Bug ugly formatting update
Diffstat (limited to 'libc/misc/time/tm_conv.c')
-rw-r--r--libc/misc/time/tm_conv.c207
1 files changed, 101 insertions, 106 deletions
diff --git a/libc/misc/time/tm_conv.c b/libc/misc/time/tm_conv.c
index ec0073294..d345f7528 100644
--- a/libc/misc/time/tm_conv.c
+++ b/libc/misc/time/tm_conv.c
@@ -5,63 +5,64 @@
/* This is a translation from ALGOL in Collected Algorithms of CACM. */
/* Copied from Algorithm 199, Author: Robert G. Tantzen */
-void
-__tm_conv(tmbuf, timep, offset)
+void __tm_conv(tmbuf, timep, offset)
struct tm *tmbuf;
time_t *timep;
time_t offset;
{
-static int moffset[] =
- {0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334};
-
- long s;
- long j, d, m, y;
-
- offset += *timep;
-
- tmbuf->tm_isdst = 0; /* Someone else can set this */
-
- j = offset / 86400L + 719469;
- s = offset % 86400L;
-
- if( s < 0 ) { s += 86400L; j--; }
-
- tmbuf->tm_sec = s % 60;
- tmbuf->tm_min = (s / 60) % 60;
- tmbuf->tm_hour = s / 3600;
-
- tmbuf->tm_wday = (j+2) % 7;
-
- /*
- * Julian date converter. Takes a julian date (the number of days since
- * some distant epoch or other), and fills tmbuf.
- */
-
- y = (4L * j - 1L) / 146097L;
- j = 4L * j - 1L - 146097L * y;
- d = j / 4L;
- j = (4L * d + 3L) / 1461L;
- d = 4L * d + 3L - 1461L * j;
- d = (d + 4L) / 4L;
- m = (5L * d - 3L) / 153L;
- d = 5L * d - 3 - 153L * m;
- d = (d + 5L) / 5L;
- y = 100L * y + j;
- if (m < 10)
- m += 2;
- else
- {
- m -= 10;
- ++y;
- }
-
- tmbuf->tm_year = y - 1900;
- tmbuf->tm_mon = m;
- tmbuf->tm_mday = d;
-
- tmbuf->tm_yday = d + moffset[m];
- if (m > 1 && ((y) % 4 == 0 && ((y) % 100 != 0 || (y) % 400 == 0)))
- tmbuf->tm_yday++;
+ static int moffset[] =
+ { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 };
+
+ long s;
+ long j, d, m, y;
+
+ offset += *timep;
+
+ tmbuf->tm_isdst = 0; /* Someone else can set this */
+
+ j = offset / 86400L + 719469;
+ s = offset % 86400L;
+
+ if (s < 0) {
+ s += 86400L;
+ j--;
+ }
+
+ tmbuf->tm_sec = s % 60;
+ tmbuf->tm_min = (s / 60) % 60;
+ tmbuf->tm_hour = s / 3600;
+
+ tmbuf->tm_wday = (j + 2) % 7;
+
+ /*
+ * Julian date converter. Takes a julian date (the number of days since
+ * some distant epoch or other), and fills tmbuf.
+ */
+
+ y = (4L * j - 1L) / 146097L;
+ j = 4L * j - 1L - 146097L * y;
+ d = j / 4L;
+ j = (4L * d + 3L) / 1461L;
+ d = 4L * d + 3L - 1461L * j;
+ d = (d + 4L) / 4L;
+ m = (5L * d - 3L) / 153L;
+ d = 5L * d - 3 - 153L * m;
+ d = (d + 5L) / 5L;
+ y = 100L * y + j;
+ if (m < 10)
+ m += 2;
+ else {
+ m -= 10;
+ ++y;
+ }
+
+ tmbuf->tm_year = y - 1900;
+ tmbuf->tm_mon = m;
+ tmbuf->tm_mday = d;
+
+ tmbuf->tm_yday = d + moffset[m];
+ if (m > 1 && ((y) % 4 == 0 && ((y) % 100 != 0 || (y) % 400 == 0)))
+ tmbuf->tm_yday++;
}
#else
@@ -74,65 +75,59 @@ static int moffset[] =
#include <time.h>
-static const unsigned short int __mon_lengths[2][12] =
- {
- /* Normal years. */
- { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 },
- /* Leap years. */
- { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }
- };
+static const unsigned short int __mon_lengths[2][12] = {
+ /* Normal years. */
+ {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31},
+ /* Leap years. */
+ {31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}
+};
-void
-__tm_conv(tmbuf, t, offset)
+void __tm_conv(tmbuf, t, offset)
struct tm *tmbuf;
time_t *t;
time_t offset;
{
- long days, rem;
- register int y;
- register const unsigned short int *ip;
-
- days = *t / SECS_PER_DAY;
- rem = *t % SECS_PER_DAY;
- rem += offset;
- while (rem < 0)
- {
- rem += SECS_PER_DAY;
- --days;
- }
- while (rem >= SECS_PER_DAY)
- {
- rem -= SECS_PER_DAY;
- ++days;
- }
- tmbuf->tm_hour = rem / SECS_PER_HOUR;
- rem %= SECS_PER_HOUR;
- tmbuf->tm_min = rem / 60;
- tmbuf->tm_sec = rem % 60;
- /* January 1, 1970 was a Thursday. */
- tmbuf->tm_wday = (4 + days) % 7;
- if (tmbuf->tm_wday < 0)
- tmbuf->tm_wday += 7;
- y = 1970;
- while (days >= (rem = __isleap(y) ? 366 : 365))
- {
- ++y;
- days -= rem;
- }
- while (days < 0)
- {
- --y;
- days += __isleap(y) ? 366 : 365;
- }
- tmbuf->tm_year = y - 1900;
- tmbuf->tm_yday = days;
- ip = __mon_lengths[__isleap(y)];
- for (y = 0; days >= ip[y]; ++y)
- days -= ip[y];
- tmbuf->tm_mon = y;
- tmbuf->tm_mday = days + 1;
- tmbuf->tm_isdst = -1;
+ long days, rem;
+ register int y;
+ register const unsigned short int *ip;
+
+ days = *t / SECS_PER_DAY;
+ rem = *t % SECS_PER_DAY;
+ rem += offset;
+ while (rem < 0) {
+ rem += SECS_PER_DAY;
+ --days;
+ }
+ while (rem >= SECS_PER_DAY) {
+ rem -= SECS_PER_DAY;
+ ++days;
+ }
+ tmbuf->tm_hour = rem / SECS_PER_HOUR;
+ rem %= SECS_PER_HOUR;
+ tmbuf->tm_min = rem / 60;
+ tmbuf->tm_sec = rem % 60;
+ /* January 1, 1970 was a Thursday. */
+ tmbuf->tm_wday = (4 + days) % 7;
+ if (tmbuf->tm_wday < 0)
+ tmbuf->tm_wday += 7;
+ y = 1970;
+ while (days >= (rem = __isleap(y) ? 366 : 365)) {
+ ++y;
+ days -= rem;
+ }
+ while (days < 0) {
+ --y;
+ days += __isleap(y) ? 366 : 365;
+ }
+ tmbuf->tm_year = y - 1900;
+ tmbuf->tm_yday = days;
+ ip = __mon_lengths[__isleap(y)];
+ for (y = 0; days >= ip[y]; ++y)
+ days -= ip[y];
+ tmbuf->tm_mon = y;
+ tmbuf->tm_mday = days + 1;
+ tmbuf->tm_isdst = -1;
}
#endif