Copyright 2001 Walter Harms (firstname.lastname@example.org) %%%LICENSE_START(VERBATIM) Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies. Permission is granted to copy and distribute modified versions of this manual under the conditions for verbatim copying, provided that the entire resulting derived work is distributed under the terms of a permission notice identical t...
NAMEdysize - get number of days for a given year
int dysize(int year);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
dysize(): _BSD_SOURCE || _SVID_SOURCE
DESCRIPTIONThe 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>.
ATTRIBUTESFor an explanation of the terms used in this section, see attributes(7).