| NAME | SYNOPSIS | DESCRIPTION | CONFORMING TO | NOTES | SEE ALSO | COLOPHON | The Linux Programming Interface |
DYSIZE(3) Linux Programmer's Manual DYSIZE(3)
dysize - get number of days for a given year
#include <time.h>
int dysize(int year);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
dysize(): _BSD_SOURCE || _SVID_SOURCE
The function returns 365 for a normal year and 366 for a leap year. The
calculation for leap year is based on:
(year) %4 == 0 && ((year) %100 != 0 || (year) %400 == 0)
The formula is defined in the macro __isleap(year) also found in <time.h>.
This function occurs in SunOS 4.x.
This is a compatibility function only. Don't use it in new programs.
strftime(3)
This page is part of release 3.32 of the Linux man-pages project. A
description of the project, and information about reporting bugs, can be found
at http://www.kernel.org/doc/man-pages/.
GNU 2010-09-22 DYSIZE(3)
HTML rendering created 2010-12-03 by Michael Kerrisk, author of The Linux Programming Interface