Section (3) dysize


Linux manual pages Section 3  

Name

dysize — get number of days for a given year

Synopsis

#include <time.h>
int dysize( int year);
 
[Note] Note
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
dysize():
Since glibc 2.19:
_DEFAULT_SOURCE Glibc 2.19 and earlier:
_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>

ATTRIBUTES

For an explanation of the terms used in this section, see attributes(7).

Interface Attribute Value
dysize() Thread safety MT-Safe

CONFORMING TO

This function occurs in SunOS 4.x.

NOTES

This is a compatibility function only. Don_zsingle_quotesz_t use it in new programs.

SEE ALSO

strftime(3)

COLOPHON

This page is part of release 4.16 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man−pages/.


   Copyright 2001 Walter Harms (walter.harmsinformatik.uni-oldenburg.de)

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aeb: some corrections