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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 19:40:15 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 19:40:15 +0000 |
| commit | 399644e47874bff147afb19c89228901ac39340e (patch) | |
| tree | 1c4c0b733f4c16b5783b41bebb19194a9ef62ad1 /man3/dysize.3 | |
| parent | Initial commit. (diff) | |
| download | manpages-upstream/6.05.01.tar.xz manpages-upstream/6.05.01.zip | |
Adding upstream version 6.05.01.upstream/6.05.01
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'man3/dysize.3')
| -rw-r--r-- | man3/dysize.3 | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/man3/dysize.3 b/man3/dysize.3 new file mode 100644 index 0000000..7e2d328 --- /dev/null +++ b/man3/dysize.3 @@ -0,0 +1,70 @@ +'\" t +.\" Copyright 2001 Walter Harms (walter.harms@informatik.uni-oldenburg.de) +.\" +.\" SPDX-License-Identifier: Linux-man-pages-copyleft +.\" +.\" aeb: some corrections +.TH dysize 3 2023-07-20 "Linux man-pages 6.05.01" +.SH NAME +dysize \- get number of days for a given year +.SH LIBRARY +Standard C library +.RI ( libc ", " \-lc ) +.SH SYNOPSIS +.nf +.B "#include <time.h>" +.PP +.BI "int dysize(int " year ); +.fi +.PP +.RS -4 +Feature Test Macro Requirements for glibc (see +.BR feature_test_macros (7)): +.RE +.PP +.BR dysize (): +.nf + Since glibc 2.19: + _DEFAULT_SOURCE + glibc 2.19 and earlier: + _BSD_SOURCE || _SVID_SOURCE +.fi +.SH DESCRIPTION +The function returns 365 for a normal year and 366 for a leap year. +The calculation for leap year is based on: +.PP +.in +4n +.EX +(year) %4 == 0 && ((year) %100 != 0 || (year) %400 == 0) +.EE +.in +.PP +The formula is defined in the macro +.I __isleap(year) +also found in +.IR <time.h> . +.SH ATTRIBUTES +For an explanation of the terms used in this section, see +.BR attributes (7). +.TS +allbox; +lbx lb lb +l l l. +Interface Attribute Value +T{ +.na +.nh +.BR dysize () +T} Thread safety MT-Safe +.TE +.sp 1 +.SH STANDARDS +None. +.SH HISTORY +SunOS 4.x. +.PP +This is a compatibility function only. +Don't use it in new programs. +.\" The SCO version of this function had a year-2000 problem. +.SH SEE ALSO +.BR strftime (3) |