From 61378e59228fd01bd2785aa26d1ff175bf52791f Mon Sep 17 00:00:00 2001
From: Rahul Sinha <rahul.sinha@mpimet.mpg.de>
Date: Fri, 27 Jun 2014 13:26:03 +0200
Subject: [PATCH] Bug #4966: Speed julianDeltaToTimeDelta()
---
src/mtime_timedelta.c | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/src/mtime_timedelta.c b/src/mtime_timedelta.c
index 2e1ac706..9ca23485 100644
--- a/src/mtime_timedelta.c
+++ b/src/mtime_timedelta.c
@@ -805,6 +805,16 @@ julianDeltaToTimeDelta(struct _juliandelta* jd, struct _datetime* base_dt, struc
int64_t j = base_dt->date.year;
/* Initialize to 0. */
td_return->year = 0;
+
+ /* Fast-Fwd: >= 400 */
+ while (days >= NO_OF_DAYS_IN_400_YEARS)
+ {
+ td_return->year = td_return->year + 400;
+ j = j + 400;
+ days = days - NO_OF_DAYS_IN_400_YEARS;
+
+ };
+
do
{
@@ -895,6 +905,16 @@ julianDeltaToTimeDelta(struct _juliandelta* jd, struct _datetime* base_dt, struc
int64_t j = base_dt->date.year;
/* Initialize. */
td_return->year = 0;
+
+ /* Fast-Fwd: >= 400 */
+ while (days >= NO_OF_DAYS_IN_400_YEARS)
+ {
+ td_return->year = td_return->year + 400;
+ j = j - 400;
+ days = days - NO_OF_DAYS_IN_400_YEARS;
+
+ };
+
do
{
/* Loop over and get the year by substracting 366/365 days depending
--
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