I am referring to this forum and the explanation about timeradd (3) where is written https://www.unix.com/man-page/freebsd/3/timeradd/
"timercmp() compares a to b using the comparison operator given in CMP, and returns the
result of that comparison." I could not find any example for this kind of macro. It sounds
easy, comparing a to b, at first sight.
My attempt so far is this, but is there anyone who could give me an example with the above
timercmp () ??? Thanks in advance.
I'm having a problem with a macro i put in my .exrc file.
Here's what I put: map #I ^[
^ [ is control-v and the escape key.
It places a # a the beginning of a line by simply hitting the # on the keyboard. Problem is, now when I hit "o" or "O" to move up or down a line, it places a # at... (1 Reply)
I'm upleveling code from 10.20 to 11.11....but I'm running into a problem in which the USRSTACK macro does not seem to be defined in 11.11. Has anybody else experienced this/fixed it/worked around it? Is there a different macro I should be using instead?
Thanks for any info you can provide!! (1 Reply)
Hi,
In my application I have some number c files. In each of the file the following line will be the first statement.
#ident "@(#) set.c 14.1.2.2 05/15/01 17:06:32"
I would like to know what is the use of the above statement.
Thanks
Sarwan (1 Reply)
I think there is no problem to use any macro in a new macro definishion, but I have a problem with that.
I can not understand why?
I have a *.mak file that inludes file with many definitions and rules.
##############################################
include dstndflt.mak
...
One of the... (2 Replies)
Hi,
I just opened one old RH box and found number of "macros" in there, that how they called in how-to doc, let say you type <rx> and this does a lot of stuff.
I can't figure out how it work, how I can edit/display these macros? Can anybody point to the right directions? I have some academic... (3 Replies)
Hi everyone,
What I am trying to do is assign a F-key a macro to save a file in vi and display said file in firefox. The details are as follows:
I am using a Win 7 laptop with and ssh program to log into a unix system.
What I am trying to do is figure out how to bring up the firefox... (1 Reply)
Hey guys, thanks for lookin....my question is I want to create a macro on HPUX to SFTP a .xls to my Windows Server....I have exstensively searched and all I can find is What a macro is not how to create one.
Reasoning for having a macro is to put it in a file creation script and have it run at... (7 Replies)
Can some body explain this part in a header file for me?
#include <limits.h>
#define BIGNUM unsigned long long
typedef BIGNUM (*hash_t) (char *str);
......I have hard time for the second part:
typedef BIGNUM (*hash_t) (char *str); First, I could not find the definition of hash_t, which... (1 Reply)
Discussion started by: yifangt
1 Replies
LEARN ABOUT DEBIAN
timerisset
TIMERADD(3) Linux Programmer's Manual TIMERADD(3)NAME
timeradd, timersub, timercmp, timerclear, timerisset - timeval operations
SYNOPSIS
#include <sys/time.h>
void timeradd(struct timeval *a, struct timeval *b,
struct timeval *res);
void timersub(struct timeval *a, struct timeval *b,
struct timeval *res);
void timerclear(struct timeval *tvp);
int timerisset(struct timeval *tvp);
int timercmp(struct timeval *a, struct timeval *b, CMP);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
All functions shown above: _BSD_SOURCE
DESCRIPTION
The macros are provided to operate on timeval structures, defined in <sys/time.h> as:
struct timeval {
time_t tv_sec; /* seconds */
suseconds_t tv_usec; /* microseconds */
};
timeradd() adds the time values in a and b, and places the sum in the timeval pointed to by res. The result is normalized such that
res->tv_usec has a value in the range 0 to 999,999.
timersub() subtracts the time value in b from the time value in a, and places the result in the timeval pointed to by res. The result is
normalized such that res->tv_usec has a value in the range 0 to 999,999.
timerclear() zeros out the timeval structure pointed to by tvp, so that it represents the Epoch: 1970-01-01 00:00:00 +0000 (UTC).
timerisset() returns true (nonzero) if either field of the timeval structure pointed to by tvp contains a nonzero value.
timercmp() compares the timer values in a and b using the comparison operator CMP, and returns true (nonzero) or false (0) depending on the
result of the comparison. Some systems (but not Linux/glibc), have a broken timercmp() implementation, in which CMP of >=, <=, and == do
not work; portable applications can instead use
!timercmp(..., <)
!timercmp(..., >)
!timercmp(..., !=)
RETURN VALUE
timerisset() and timercmp() return true (nonzero) or false (0).
ERRORS
No errors are defined.
CONFORMING TO
Not in POSIX.1-2001. Present on most BSD derivatives.
SEE ALSO gettimeofday(2), time(7)COLOPHON
This page is part of release 3.44 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Linux 2010-02-25 TIMERADD(3)