Linux.com

dysize.3

DYSIZE

Section: Linux Programmer's Manual (3)
Updated: 2007-07-26
Index Return to Main Contents
 

NAME

dysize - get number of days for a given year  

SYNOPSIS

#include <time.h>

int dysize(int year);

Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

dysize(): _BSD_SOURCE || _SVID_SOURCE  

DESCRIPTION

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>.  

CONFORMING TO

This function occurs in SunOS 4.x.  

NOTES

This is a compatibility function only. Don't use it in new programs. The SCO version of this function had a year-2000 problem.  

SEE ALSO

strftime(3)  

COLOPHON

This page is part of release 3.21 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/.


 

Index

NAME
SYNOPSIS
DESCRIPTION
CONFORMING TO
NOTES
SEE ALSO
COLOPHON

 

Comments

Subscribe to Comments Feed
Become an Individual Member
Check out the Friday Funnies

Sign Up For the Linux.com Newsletter


Who we are ?

The Linux Foundation is a non-profit consortium dedicated to the growth of Linux.

More About the foundation...

Frequent Questions

Join / Linux Training / Board