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Diffstat (limited to 'time/solar_noon.c')
-rw-r--r-- | time/solar_noon.c | 57 |
1 files changed, 0 insertions, 57 deletions
diff --git a/time/solar_noon.c b/time/solar_noon.c deleted file mode 100644 index 65bafcc..0000000 --- a/time/solar_noon.c +++ /dev/null @@ -1,57 +0,0 @@ -/* - * (c)2012 Michael Duane Rice All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * Redistributions of source code must retain the above copyright notice, this - * list of conditions and the following disclaimer. Redistributions in binary - * form must reproduce the above copyright notice, this list of conditions - * and the following disclaimer in the documentation and/or other materials - * provided with the distribution. Neither the name of the copyright holders - * nor the names of contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -/* $Id: solar_noon.c 2365 2013-04-27 15:32:59Z swfltek $ */ - -/* - Return the time of solar noon at the observers position -*/ - -#include <time.h> - -extern long __longitude; - -time_t -solar_noon(const time_t * timer) -{ - time_t t; - long n; - - /* determine time of solar noon at the prime meridian */ - t = *timer % ONE_DAY; - t = *timer - t; - t += 43200L; - t -= equation_of_time(timer); - - /* rotate to observers longitude */ - n = __longitude / 15L; - t -= n; - - return t; - -} |