diff options
Diffstat (limited to 'time/iso_week_date.c')
-rw-r--r-- | time/iso_week_date.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/time/iso_week_date.c b/time/iso_week_date.c new file mode 100644 index 0000000..efbf841 --- /dev/null +++ b/time/iso_week_date.c @@ -0,0 +1,51 @@ +/* + * (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: iso_week_date.c 2394 2013-05-04 10:26:24Z swfltek $ */ + +/* + Compute the ISO 8601 week date corresponding to the given year and day of year. + See http://en.wikipedia.org/wiki/ISO_week_date for a full description. + + See iso_week_date_r.c for implementation details. + +*/ + +#include <time.h> + +extern char *__asc_store; + +struct week_date * +iso_week_date(int y, int yday) +{ + struct week_date *iso; + + iso = (struct week_date *) __asc_store; + iso_week_date_r(y, yday, iso); + return iso; +} |