Man Pages

DYSIZE


NAME
SYNOPSIS
DESCRIPTION
ATTRIBUTES
CONFORMING TO
NOTES
SEE ALSO
COLOPHON

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>.

ATTRIBUTES

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

CONFORMING TO

This function occurs in SunOS 4.x.

NOTES

This is a compatibility function only. Don’t use it in new programs.

SEE ALSO

strftime(3)

COLOPHON

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