Manpage of DYSIZE

DYSIZE

Section: Linux Programmer's Manual (3)
Updated: 2016-03-15
Index
 

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():
    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).
InterfaceAttributeValue
dysize() Thread safetyMT-Safe
 

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)


 

Index

NAME
SYNOPSIS
DESCRIPTION
ATTRIBUTES
CONFORMING TO
NOTES
SEE ALSO

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