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You can use a COleDateTime[^] class for that purpose (by using the + and - operators).
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Hi sir,
Suppose if i have one date in 12:7:2010(Current Date)
and other in 12-06-2010(P Date)
How can i find difference between them(P Date - Current Date)
Thanks
Raj
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Why do you ask your question again ? Did you follow the link I provided and tried to understand the concept ?
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I recommend you do not reinvent this. There are ATL classes you could use COleDateTime and COleDateTimeSpan. There are probably lots of other free classes as well.
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The boost date_time library works pretty well if you don't want to use the MFC/ATL /WTL stuff that the previous posters have mentioned.
Another option is to use the humble time_t, remembering to convert between number of days and number of seconds. This is especially handy if you work with luddites that squeal about anything boost like.
Cheers,
Ash
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chk it
COleDateTime prev_date;
CTime curr_time = CTime::GetCurrentTime();
CString curr_date_str;
curr_date_str=curr_time.Format(_T("%d-%m-%Y"));
COleDateTime curr_date;
curr_date.ParseDateTime(curr_date_str,0,LANG_USER_DEFAULT);
COleDateTimeSpan diff=(curr_date-prev_date);
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Hi sir,
I tried with your code.
prev_date = "11-07-2010";
test2 = "13-07-2010";
COleDateTimeSpan diff=(test2-prev_date);
The diff is showing as null.
Thanks
Raj
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CString str;
COleDateTime prev_date;
str="11-07-2010";
prev_date.ParseDateTime(str,0,LANG_USER_DEFAULT);
str=prev_date.Format("%d-%m-%Y");
prev_date.ParseDateTime(str,0,LANG_USER_DEFAULT);
AfxMessageBox(prev_date.Format("%d-%m-%Y"));
CTime curr_time = CTime::GetCurrentTime();
CString curr_date_str;
curr_date_str=curr_time.Format(_T("%d-%m-%Y"));
COleDateTime curr_date;
curr_date.ParseDateTime(curr_date_str,0,LANG_USER_DEFAULT);
AfxMessageBox(curr_date.Format("%d-%m-%Y"));
COleDateTimeSpan diff=(prev_date-curr_date);
int noofday=0;
noofday=(int)diff.GetTotalDays();
if(noofday<=0)
{
noofday=-(noofday);
}
CString days_str="";
days_str.Format("%d",noofday);
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Hi!
i use localtime function to get current time, in "tm struct".
how do i get a new "tm struct" that adds the specified number of days to the value of this instance.
this is similar with DateTime::AddDays, but i don't use any MFC Class.
time_t t;
struct tm * tt;
char buffer[50];
time(&t);
tt = localtime(&t);
int dayOfWeek = tt->tm_wday;
tt->tm_mday -= dayOfWeek;
in this code there is a bug.
if tt->tm_mday < dayOfWeek then ???
please help me.
Zo.Naderi-Iran
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Why don't you add the proper number of seconds (1 day is 86400 secs) directly to the time_t variable?
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
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oh, ok.
thanks a lot, dear CPallini.
Zo.Naderi-Iran
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Another answer is
To get system date:
COleDateTime curDateTime;
curDateTime = COleDateTime::GetCurrentTime();
COleDateTimeSpan represents a relative time, a time span.
COleDateTimeSpan daySpan(25,0,0,0);
25 represents 25 days span. Next three zeros – hours, minutes, and seconds.
Wanna get the date, 25 days from current date, add daySpan with curDateTime:
COleDateTime comDateTime;
comDateTime = curDateTime + daySpan;
Also see CTime and CTimeSpan
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this is the sourse code............ and i don know what to do next....
could anyone plz check if this sourse code is right and plz help
me to finish full baccarat program?
i am always tryin and tryin but c is hard...
#include <stdio.h>
#include <stdlib.h>
int drawCard();
int get2cards(int who);
void get3rdCard(int who, int *p_total);
main() {
int playerTotal; BankerTotal;
srand(time(NULL));
playerTotal = get2cards(1);
BankerTotal = get2cards(2);
if (playerTotal < 6)
get3rdCard(1, &playerTotal);
}
int drawCard() {
int value;
value = rand() %13 + 1;
return value;
}
int get2cards(int who) {
int total;
total = drawCard();
total += drawCard();
return total;
}
void get3rdCard(int who, int *p_total) {
int card3;
card3 = drawCard();
}
o.... and the output.... has to be like this...
plz help me.. thank you very much
PLAY BACCARAT Enter bet winner (1-Player/ 2-Banker): 0
Invalid - must choose winner as 1-player or 2-Banker: 3
Invalid - must choose winner as 1-player or 2-Banker: 2
Enter bet amount (2-20): 21
Invalid - bet must be between 2 and 20: 1
Invalid - bet must be between 2 and 20: 10 Player Cards: 7 8
Player total: 5 Banker Cards: 4 Queen
Banker total: 4 Player draws again: a(n) 10 to get total of 5
Player wins
Your bet lost!
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kcta5597 wrote: but c is hard...
That's why you're taking a class, to learn more about it and make it easy!
I won't help directly (otherwise, how do you learn), but I will give a few tips:
1/Read the "how to ask a question" post at the top of this forum. It's there for YOUR own safety and convenience. Annoying people with badly formatted questions lowers your chances of being helped.
2/ Break your problem into manageable bits.
3/ Break your problem into manageable bits.
I know I said it twice, but it's the most important programming lesson you will ever learn.
The first bit of your assignment is to print a question. Look over your previous classwork and find out how to do that.
Next, get the answer from the user.
Then, validate the answer.
If the user puts in silly answers, tell them they're an idiot and loop back.
int nPlayingAs = 0;
...
while (nPlayingAs != PLAYER && nPlayingAs != BANKER)
{
...
...
}
Notice I write PLAYER, not 1. Get in practise for later. It's over the top for this assignment, but your future self will thank you later.
Do the same with the bet number...
How you draw the cards is up to you.
You could have a random number from 0-51. Or, two random numbers: 0-3, and 0-12. This was you can say "4 of hearts", not just "4".
Make sure to keep track of cards you've already drawn. You don't want the user to think you're pulling the same card again, do you?
I wish you luck with your assignment,
Iain.
I am one of "those foreigners coming over here and stealing our jobs". Yay me!
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I would do 0-51 over 0-3/0-12. It will make it simpler to get a normal distribution once a card has been drawn from the deck.
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Well, since there is a direct mapping, that's really matter of personal taste.
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
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But of course. I personally find 'easy' tasteful
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I'd do 0-51 also, but the OP might not have learned % operator yet...
I was trying to think back to the cobwebs of time when I was learning this stuff.
Iain.
I am one of "those foreigners coming over here and stealing our jobs". Yay me!
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Sir, I can deal with point 2. Point 3, however, is really hard. Please help.
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
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I'll help you...
Bre
ak
you
r p
rob
lem
in
to
man
age
abl
e b
its.
I hope that's easier now!
I am one of "those foreigners coming over here and stealing our jobs". Yay me!
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Still I can't get it: "Bayrrlitmaaei" ?!?
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
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CPallini wrote: Still I can't get it
Maybe you should keep the original questioner company in class!
Iain.
I am one of "those foreigners coming over here and stealing our jobs". Yay me!
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I write a setup app for usb driver acording to \NTDDK\src\general\setup\install; In Windows xp ,it runs successfully;but in win2000 failed. who can tell me why? TKS a lot.
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Given the giant leaps in USB support from 2000 to XP, I'd guess that you're using a system API that either didn't exist in Win2k or had different paramters/options. You'd have to look at your code and the docco to figure out just which one it is.
Software rusts. Simon Stephenson, ca 1994.
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First,thank a lot for your reply.I have checked it as you said.But for winxp and win2000,the usage of function updateDriverForPlugAndPlayDevice() is same.
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