dysize(3) - BetterMan

dysize(3)

get number of days for a given year

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Synopsis

#include <time.h>
int dysize(int 
year
);
dysize
():
Since glibc 2.19:
        _DEFAULT_SOURCE
    glibc 2.19 and earlier:
        _BSD_SOURCE || _SVID_SOURCE

—

NAME

dysize - get number of days for a given year

LIBRARY

Standard C library (libc, -lc)

SYNOPSIS

bash

#include <time.h>

bash

int dysize(int \nyear\n);

dysize():

bash


\n
    Since glibc 2.19:
\n
        _DEFAULT_SOURCE
\n
    glibc 2.19 and earlier:
\n
        _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:

bash

(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

STANDARDS

None.

HISTORY

SunOS 4.x.

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