freebsd-dev/lib/libc/gen/time.3
Bruce Evans e0150c8ff7 Removed bogus includes of <sys/types.h> from synopses.
This commit covers the man pages for most of the ANSI library functions.
A few others such as strtol.3 have to mention <sys/types.h> because they
mix ANSI interfaces with less well designed extensions.
1996-04-19 19:00:26 +00:00

86 lines
2.9 KiB
Groff

.\" Copyright (c) 1989, 1991, 1993
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.\" @(#)time.3 8.1 (Berkeley) 6/4/93
.\"
.Dd June 4, 1993
.Dt TIME 3
.Os BSD 4
.Sh NAME
.Nm time
.Nd get time of day
.Sh SYNOPSIS
.Fd #include <time.h>
.Ft time_t
.Fn time "time_t *tloc"
.Sh DESCRIPTION
The
.Fn time
function
returns the value of time in seconds since 0 hours, 0 minutes,
0 seconds, January 1, 1970, Coordinated Universal Time.
.Pp
A copy of the time value may be saved to the area indicated by the
pointer
.Fa tloc .
If
.Fa tloc
is a NULL pointer, no value is stored.
.Pp
Upon successful completion,
.Fn time
returns the value of time.
Otherwise a value of
.Po
.Po Fa time_t Pc \-1
.Pc
is returned and the global variable
.Va errno
is set to indicate the error.
.Sh ERRORS
The following error codes may be set in
.Va errno :
.Bl -tag -width [EFAULT]
.It Bq Er EFAULT
An argument address referenced invalid memory.
.Sh SEE ALSO
.Xr gettimeofday 2 ,
.Xr ctime 3
.Sh HISTORY
A
.Fn time
function appeared in
.At v6 .