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

From: Alex Hall <mehgcap@xxxxxxx>
To: programmingblind@xxxxxxxxxxxxx
Date: Sat, 07 Jun 2008 23:22:30 -0400

It was correct when I sent it (I copied it directly from the cppfile I am compiling successfully) but my email program, on abraillenote, stripped out any braces that were by themselves onnew lines for some reason; I am going to report this bug as soonas I finish this email. If this list supports attachments I canjust send my cpp file instead of pasting it. Another email willbe coming shortly from me with another code attempt, using my pcinstead of my bn this time. Sorry about that; I had no idea itwould do that. Of course it will not work with no closingbraces. :That last loop is so that the main loop does not repeat, seeingthat it is a "beeping minute" many times in that minute. Iupdate min2 but not min, so that as long as min is equal to min2the loop runs. Once they are not equal, in other words once min2has a value other than that of min (meaning that the minute haschanged), that "idling" loop will exit (min is now less than min2so the repeat condition is false) and the main "beeping" loopwill run again, updating both min and min2 and doing it all overagain. The secondary loop is simply there to stop the programfrom seeing a minute many times and beeping over and over again;it delays until the minute changes, then lets the main loop checkto see if it should beep, then the idling loop is hit again andwaits for another minute change. Does this make sense? Oh, and Ifound the exit(0); function to exit the program, so that questionabout how to exit has been answered.


Have a great day,
Alex

----- Original Message -----
From: "Ken Perry" <whistler@xxxxxxxxxxxxx
To: <programmingblind@xxxxxxxxxxxxx
Date sent: Sat, 7 Jun 2008 19:42:26 -0700
Subject: RE: [BULK]  get minutes of system time as int in c++

I have to agree with Bob. When I said you need to send code so

we can help

the idea was to send working code. This will not compile nor

would it do

anything useful if it did. I was thinking of fixing it for you

but I am not

sure I understand what your trying to do. Do you have a

description of what

this is supposed to do?

I can see that the first part of it you want it to beep on the

hour as many

beeps as there is hours so for example if its 3 it should beep 3

times.  I

also see you want it to beep on the half hour and on the 15

minutes.  I

don't understand at all though what that last While loop is

supposed to do.

If you fix the code to have the correct {} and make it work some

what I can

help more. That or describe what it is supposed to do and I can

probably

write up something that does it.

Ken

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

Perry

Sent: Saturday, June 07, 2008 1:49 PM
To: programmingblind@xxxxxxxxxxxxx
Subject: RE: [BULK] get minutes of system time as int in c++

I will help you out when I get home if no one else does but I

have to go buy

some sheet rock and my wife is driving now grin.

Ken

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

Hall

Sent: Saturday, June 07, 2008 1:10 PM
To: programmingblind@xxxxxxxxxxxxx
Subject: RE: [BULK] get minutes of system time as int in c++

This is cpp, for windows xp, compiled with the Dev c++ compiler

version

4.9.9.2. Pretend new lines are in the right spot; my email

program forces

returns where I do not want them.  When the
line:
cmd=getch();
is commented out, the program works perfectly, but uncomment it

and the

program will not work. Oddly, pressing b twice will cause it to

work once,

but other than that it will not beep.
Also note that the q and e commands do not work because
system("exit") did not exit the program like I wanted; I am still

looking

for a way of doing this.

Code for beepclock.cpp:

#include <conio.h
#include <iostream
#include <windows.h
#include <stdio.h
#include <time.h
#include <stdlib.h
using namespace std;
int main () {
int end=0;

int min=0;//stores current system minutes int min2=0;//stores

minutes as

well, used to make infinite loop so beeps do not happen

//multiple times for

the same minute int hour=0;//stores current hour bool

beeps=true;//True' is

beeps enabled, 'false' is silence string cmd; cout<<"This program

beeps once

on the quarter hour,"; cout<<"\ntwice on the half, and three

times at

quarter of the hour,\n"; cout<<"all at 488 mhz. Each hour it

beeps as many

times as the hour is at 244mhz.\n"; cout<<"To silence beeps, type

\"s\", and

to reenable them type \"b\".\n"; cout<<"To exit, press either

\"e\" or

\"q\".\n"; while(end==0){//loop not supposed to ever end so

monitoring of

sys clock and beep alerts continue time_t now=time(NULL);//get

current time

in secs from 01-01-70
tm* t =localtime(&now);//ccvert to tm struct for getting minutes

and hofs

later min=t->tm_min;//get minutes from said tm struct

min2=min;//used for

loop at the end of this main loop hour=t->tm_hour;//now get hours
if(hour>12) hour-=12;//set to 12 hour, 1300=1:00
if(hour==0)hour=12;//0000=12 midnight
if(min==0&&beeps){//t is on an hour,
for(int i=0;i<hour;i++){//s beep that hour Beep(244, 500);
Sleep(500);//pause

else{//is it on a 15-minute time?
if(min==15&&beeps){//15 past the hour, beep once Beep(488, 500);

else if(min==30&&beeps){//half past, beep twice Beep(488, 500);

Sleep(500);

Beep(488, 500);

else if(min==45&&beeps){//quarter of, beep 3 times Beep(488,

500);

Sleep(500); Beep(488, 500); Sleep(500); Beep(488, 500);

while(min==min2){//idle in this loop until minute changes time_t
now=time(NULL);//get current time in secs from 01-01-70
tm* t =localtime(&now);//ccvert to tm struct for getting minutes

min2=t->tm_min;//get minutes again to see if this loop should end

//comment

following line and prog runs great, leave it and no beeps.
//I used it thinking that if no <enter> was needed then it would

just wtch

for input, not wait for it like it is seeming to do

cmd=getch();//this loop

is good for input //because it is almost always running, getch

gets char

from kbd w/o <enter if(cmd=="s"){ beeps=false; system("cls");

cout<<"Beeps

disabled, type \"b\" to enable.\n";

else if(cmd=="b"){
beeps=true;
system("cls");
cout<<"Beeps enabled, type \"s\" to disable.\n";

cout<<"test";//to tell me when loop exits, for testing }

cin.get(); return

false;

Have a great day,
Alex

----- Original Message -----
From: "Ken Perry" <whistler@xxxxxxxxxxxxx
To: <programmingblind@xxxxxxxxxxxxx
Date sent: Fri, 6 Jun 2008 23:42:18 -0700
Subject: RE: [BULK]  get minutes of system time as int in c++

I could not really help unless you had an example bit of source

that doesn't

work the way you expect it to.  When your writing lists like this

you should

try to break the problem down into a simple small main that shows

the

problems o we can help fix it.

Ken

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

Hall

Sent: Friday, June 06, 2008 9:22 PM
To: programmingblind@xxxxxxxxxxxxx
Subject: RE: [BULK] get minutes of system time as int in c++

I will look into that.  Google seems silent on the subject, but I

have

probably not hit on the correct search terms that will uncover

the

information.  Do you know anything about getchar() and

getch()"Getch seems

to react to a character input with no enter key, while getchar

seems more

like cin>>.  I used getch hoping for the results I am looking

for, but,

while I can press letters of commands and have those commands

execute

without me hitting enter, there is still a problem in the

program; the

actual function I want will not run.

Have a great day,
Alex

----- Original Message -----
From: "Ken Perry" <whistler@xxxxxxxxxxxxx
To: <programmingblind@xxxxxxxxxxxxx
Date sent: Fri, 6 Jun 2008 21:08:24 -0700
Subject: RE: [BULK]  get minutes of system time as int in c++

Since your using Devc++ your best bet is probably the select

statement for

making it continue on.  Most of the time people use the select

statement for

socket programs and once you master it you will find making a

multi user

game easier as well.  I just thought I would point you in the

right

direction.

Ken

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

Hall

Sent: Friday, June 06, 2008 6:08 PM
To: programmingblind@xxxxxxxxxxxxx
Subject: RE: [BULK] get minutes of system time as int in c++

Ok, I have it working, thanks for your help!!! The whole time

thing makes

more sense now.  My only hang-up now (until the next one comes

along, I am

sure) is that I need it to run constantly, which it does, but I

would like

to be able to give commands.
Currently, though, it stops running and waits for my commands,

then executes

them and hits my cin >> and stops again.  Is there some sort of

cin>> that

does not make the system stop to await input?

Have a great day,
Alex

----- Original Message -----
From: "Ken Perry" <whistler@xxxxxxxxxxxxx
To: <programmingblind@xxxxxxxxxxxxx
Date sent: Fri, 6 Jun 2008 16:58:31 -0700
Subject: RE: [BULK]  get minutes of system time as int in c++

Then what you need is the tm structure and a function called

local time.

There is a simple example on this page.

http://www.cplusplus.com/reference/clibrary/ctime/localtime.html

Note they just print the full time in this string but if  you

look in your

time.h file you will find all the tm_day tm_month tm_year fields

that you

can use in the structure tm if you still have trouble just drop

me a line

and I will create another simple program.

A hint is use the tm structure that they pass to the asctime

function but

use it like bla.tm_day etc.

Ken

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

Hall

Sent: Friday, June 06, 2008 3:23 PM
To: programmingblind@xxxxxxxxxxxxx
Subject: RE: [BULK] get minutes of system time as int in c++

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

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

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