|| Linux Programmer's Manual
NAME dysize - get number of days for a given year
Feature Test Macro Requirements for glibc (see
(): _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
also found in
CONFORMING TO This function occurs in SunOS 4.x.
NOTES This is a compatibility function only. Don't use it in new programs.
COLOPHON This page is part of release 3.53 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/.