RE: [BULK] get minutes of system time as int in c++

  • From: Alex Hall <mehgcap@xxxxxxx>
  • To: programmingblind@xxxxxxxxxxxxx
  • Date: Fri, 06 Jun 2008 18:23:25 -0400

I have read it, but mktime and the others will not work as they make the entire string and all I am trying to get out of the deal is the minutes, not the entire thing. I could make minutes out of the seconds like you did, but that would be a very large amount of minutes that I could not get as being either on the hour or 15, 30, or 45 minutes after the hour. Similar with the hour itself; I could not say which hour it is. Is there a way of getting the minutes out of the tm object, defined in the object definition as tm_min? 


Have a great day,
Alex


----- Original Message -----
From: "Ken Perry" <whistler@xxxxxxxxxxxxx
To: <programmingblind@xxxxxxxxxxxxx
Date sent: Fri, 6 Jun 2008 14:46:34 -0700
Subject: RE: [BULK]  get minutes of system time as int in c++
That is the system clock all I did was subtract the system clock 
for when
the program began to the system clock after the loop. The t1 is 
the number
of seconds from that date in 1970 so with that you should be able 
to use the
ctime on the page I sent you to get a printable time. I really 
think you

need to read the page I sent you .
-----Original Message-----
From: programmingblind-bounce@xxxxxxxxxxxxx
[mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of Alex 
Hall

Sent: Friday, June 06, 2008 2:36 PM
To: programmingblind@xxxxxxxxxxxxx
Subject: RE: [BULK] get minutes of system time as int in c++
Got it. Is there a way to apply this to tracking the system 
clock instead

of the elapsed time of a program?



Have a great day,
Alex



----- Original Message -----
From: "Ken Perry" <whistler@xxxxxxxxxxxxx
To: <programmingblind@xxxxxxxxxxxxx
Date sent: Fri, 6 Jun 2008 14:13:13 -0700
Subject: RE: [BULK]  get minutes of system time as int in c++




If you look in time.h you will find that time_t when using dev

c++ is just a

long int.  And what it is, is the amount of seconds since 1970

some time.

If you read this page you will learn more.



http://rabbit.eng.miami.edu/info/functions/time.html



Why I use null is because that gives you the current time.  I

used the

modulus because that gives you the remainder in a division in

this case it

would be 5 seconds.  If you had 70 seconds it would return a

remainder of 10

instead of 5.



Ken




-----Original Message-----
From: programmingblind-bounce@xxxxxxxxxxxxx
[mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of Alex

Hall

Sent: Friday, June 06, 2008 1:44 PM
To: programmingblind@xxxxxxxxxxxxx
Subject: RE: [BULK] get minutes of system time as int in c++



Thanks.  A couple questions:
1.  Exactly what is the time_t object and what can you do with

it?

2.  Why, to get seconds, do you mod by 60 yet minutes you divide

by 60?

3.  Why do you pass null to the time function, and what does that

time

function return?



Have a great day,
Alex



----- Original Message -----
From: "Ken Perry" <whistler@xxxxxxxxxxxxx
To: <programmingblind@xxxxxxxxxxxxx
Date sent: Fri, 6 Jun 2008 13:25:37 -0700
Subject: RE: [BULK]  get minutes of system time as int in c++





Ok while I was waiting on your response I wrote this to check the

minutes

and seconds elapsed while running some commands.  Note I did not

use any

special libraries like a Date class that they have in most

compilers.  Here

is the most basic with out using assembler snicker.  It works for

both gcc

and visual studio's c++  Just delete the defined lines depending

on what

your using.




#ifdef VC++_COMPILER
#include <windows.h
#endif
#include <time.h
#include <iostream



using namespace std;



int main(int argc, char* argv[])
{
time_t t1 = time(NULL);



//do some tasks here
for (long  i=0;i<65;i++)
#ifdef GCC
//_sleep(1000);
#endif
#ifdef VC++_COMPILER
Sleep(1000);
#endif



time_t t2 = time(NULL);
int seconds=(t2-t1)%60;
int minutes=(t2-t1)/60;



cout <<"elapsed time = "<<minutes<< " minutes "<< seconds<< "

seconds

"<<endl;



return (0);



}





-----Original Message-----
From: programmingblind-bounce@xxxxxxxxxxxxx
[mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of Ken

Perry

Sent: Friday, June 06, 2008 12:58 PM
To: programmingblind@xxxxxxxxxxxxx
Subject: RE: [BULK] get minutes of system time as int in c++





Oh sorry the original mail did not come to me it got junked I got

the

response and that was the one I was replying to.



Now I can tell you how to get system time all the way to the

assembler level

but it helps in knowing what c++ environment your working in

because it

makes a difference for example they have data and time classes in

Microsoft

that is some times easier to use then to actually write the code

yourself.

So tell me what compiler your using and for what operating system

and I will

give you an example.



Ken



-----Original Message-----
From: programmingblind-bounce@xxxxxxxxxxxxx
[mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of Alex

Hall

Sent: Friday, June 06, 2008 12:34 PM
To: programmingblind@xxxxxxxxxxxxx
Subject: RE: [BULK] get minutes of system time as int in c++



The example did not have stdlib, and stdio was just the word, no

h.  Thanks.

The question still  stands, though: how can  I get the minutes of

the system

time? Apparently there is a time_t object, but I could not find

much on

that.



Have a great day,
Alex



----- Original Message -----
From: "Ken Perry" <whistler@xxxxxxxxxxxxx
To: <programmingblind@xxxxxxxxxxxxx
Date sent: Fri, 6 Jun 2008 12:09:03 -0700
Subject: RE: [BULK]  get minutes of system time as int in c++





You should be able to compile a printf into your c++ program as

long as you

include the header for printf which is stdio and stdlib with the

h

extention.



Ken



-----Original Message-----
From: programmingblind-bounce@xxxxxxxxxxxxx
[mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of Alex

Hall

Sent: Friday, June 06, 2008 11:04 AM
To: programmingblind@xxxxxxxxxxxxx
Subject: RE: [BULK] get minutes of system time as int in c++



Yes, just the 34 of 16:34.  The examples used printf() which is,

I believe,

a c function and stopped my program from compiling in cpp.



Have a great day,
Alex



----- Original Message -----
From: "Sean Farrow" <sean.farrow@xxxxxxxxxxxxxxxx
To: <programmingblind@xxxxxxxxxxxxx
Date sent: Fri, 6 Jun 2008 18:27:38 +0100
Subject: RE: [BULK]  get minutes of system time as int in c++



Hi Alex:
Plese could you clarify what you want: if the time is 16:34, do

you just

want the 34?
What examples did you fine?
Sean.



-----Original Message-----
From: programmingblind-bounce@xxxxxxxxxxxxx
[mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of Alex

Hall

Sent: 06 June 2008 17:50
To: programmingblind@xxxxxxxxxxxxx
Subject: [BULK] get minutes of system time as int in c++
Importance: Low



how could I go about getting the minutes, as an integer, of the

system

time using cpp? I tried to find it, but got what seemed to be

examples

in c not cpp.  Thanks.



Have a great day,
Alex
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