projects / unix-history / blame
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1 | .\" Copyright (c) 1989 The Regents of the University of California. |
| 2 | .\" All rights reserved. | |
| 3 | .\" | |
| 4 | .\" Redistribution and use in source and binary forms are permitted | |
| 5 | .\" provided that the above copyright notice and this paragraph are | |
| 6 | .\" duplicated in all such forms and that any documentation, | |
| 7 | .\" advertising materials, and other materials related to such | |
| 8 | .\" distribution and use acknowledge that the software was developed | |
| 9 | .\" by the University of California, Berkeley. The name of the | |
| 10 | .\" University may not be used to endorse or promote products derived | |
| 11 | .\" from this software without specific prior written permission. | |
| 12 | .\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
| 13 | .\" IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
| 14 | .\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
| 15 | .\" | |
| 16 | .\" @(#)time.3 5.1 (Berkeley) %G% | |
| 17 | .\" | |
| 18 | .TH TIME 3 "" | |
| 19 | .UC 4 | |
| 20 | .SH NAME | |
| 21 | time \- get time of day | |
| 22 | .SH SYNOPSIS | |
| 23 | .nf | |
| 24 | .B #include <sys/types.h> | |
| 25 | ||
| 26 | .B time_t time(tloc) | |
| 27 | .B time_t *tloc; | |
| 28 | .fi | |
| 29 | .SH DESCRIPTION | |
| 30 | .PP | |
| 31 | .I Time | |
| 32 | returns the value of time in seconds since 0 hours, 0 minutes, | |
| 33 | 0 seconds, January 1, 1970, Coordinated Universal Time. | |
| 34 | .PP | |
| 35 | The argument | |
| 36 | .I tloc | |
| 37 | points to an area where the return value is also stored. | |
| 38 | If | |
| 39 | .I tloc | |
| 40 | is a NULL pointer, no value is stored. | |
| 41 | .PP | |
| 42 | Upon successful completion, | |
| 43 | .IR time () | |
| 44 | returns the value of time. | |
| 45 | Otherwise a value of ((\fItime_t\fR) -1) | |
| 46 | is returned and | |
| 47 | .I errno | |
| 48 | is set to indicate the error. | |
| 49 | .SH "ERRORS | |
| 50 | The following error codes may be set in | |
| 51 | .IR errno : | |
| 52 | .TP 15 | |
| 53 | [EFAULT] | |
| 54 | An argument address referenced invalid memory. | |
| 55 | .SH "SEE ALSO" | |
| 56 | gettimeofday(2), ctime(3) |