How i can easly calculate the difference between two dates ?
Example :
Date 1 = 12 March(3)
Date 2 = 24 November(11)
Result = 258 days
how to do this in C++ ?Btw i don't want to use date functions or something like that.I want to do it with simple math formula.
I'm supposed to make a program that can tell which date, out of any number of dates entered by the user, is the earliest date. However, this is based off another program that I did not do in the last chapter. Since it's a pretty simple program to use as the base for the more "generalized" one, I decided to make the more basic one that can only take two dates, first. If it was just one integer, I could just use date1 for the first date and date2 for the second date, but each date uses 6-8 separate numbers.
how do I tell it something like, "if(date1 < date2)", with date1 and date2 including their month, day, and year. I could do a separate integer name/tag (I forgot what they're called) for each number, but that sounds like doing a lot more adding and subtracting, and like it could easily get messy.Should I, or can I, add all the numbers under the "date" together to see which date has the "lowest number" or "earliest date", or should I somehow handle each number, that is month, day, and year, separately?Here's the code so far:
Code:
include <stdio.h>int main(void)
{
int date1, date2;
printf("Enter first date (mm/dd/yy):
");
scanf("%d/%d/%d", &date1);
printf("Enter second date (mm/dd/yy):
}
[code]....
my problem is naming the function larger() with "int". At least that is what my compiler is leading me to believe.
Code:
#include <stdio.h>
struct Date{
int month;
int day;
int year;
};
[code]....
Code for converting strings to Dates in C++.
Example: What is the date:
User response: 12/05/14
Any way I can code this to recognize it as a date, and make it so that the date is sortable? Not referring to the system date, but a user input date.
I have a simple table in SQLite:
Column 1: vistDate (stored as date)
Column 2: mileage
As a test, I created one row,
visitDate = 03/02/2013
Mileage = 10
I want to be able to add all the mileage between two dates but in my SQLite query, it returns zero mileage if the first date is not in the same month.
I am inputting the dates in the dd/mm/yyyy format above. It works fine for
Date 1: 01/02/2013
Date 2: 04/02/2013
i.e. 10 miles is returned as answer
but if Date1: 30/01/2013 I get Null.
Here's the query:
SQLiteExec("SELECT SUM(mileage) FROM mileageTable WHERE visitDate BETWEEN '01/02/2013' AND '04/02/2013')
I want that my DatePicker look like this:
The idea is for example if you a owner of Travel Agency and have website, when client want to go direct on your adrress in city that he or she can see on website that every weekend agency dont work(red color in calendar), other days they work(green) except of period 10.11-20.11 when they have vacation(numbers in calendar from 10.11-20.11 will be in yellow color).
I want to implement painting particular days in calendar by some logic.I suppose that I need to create my own class and inherit DatePicker from WPF, but what to override to get this if the inheritance DatePicker is the solution?
Attached image(s)
In this project a user needs to enter a numeric month and a year. The output is a single calendar month with the name of the month followed by a grid of the days. My issue is that my day alignment is off. for example: if you enter the month of December (12) and this year 2014 it says the month started on a Wednesady when in fact it started on a Monday. I am not sure if its my leap year calculaion or what.
#include<iostream>
using namespace std;
#define TRUE 1
#define FALSE 0
char *months[] = {
" ",
[Code] ....
I'm trying to sort by age a vector of birthday dates. I'm using the functions in the <ctime> header to calculate the difference in seconds between two date but it doesn't work! If I try to print 2 different dates with asctime() or ctime() it either prints 2 time the same date or throws an exception! I post my code below: p.s.: I'm using a wrapper class called Date.
#include <ctime>
#include <iostream>
#include <conio.h>
[Code].....
i have been trying to compare a date format from SYSTEMTIME and a date from a text file(string).But its not working. I tried to change both to string(using osstringstream),char* and int(using sscanf) to do the comparison but with no luck. its pretty simple all i want to do is get the current system date and compare it with the date from the text file. Below is my code:
char szcurrentDate[MAX_PATH] = "";
char szdate_time[MAX_PATH];
SYSTEMTIME st;
GetLocalTime (&st);
GetDateFormat(LOCALE_USER_DEFAULT,NULL,&st,"yyyy-M-d ",szcurrentDate,MAX_PATH); //current system date
//std::ostringstream mm;
[code].....
note : i tried displaying just szcurrentDate and szdate_time they show the date exactly the same. in string,char* or int formats.
In my WinForm, Our client insists to use Textbox instead of DateTimePicker field, and they want to input in ddmmyy format.
Using Visual Studio 2010 C# 4.0.
PC date time setting: GMT +08:00 dd-MMM-yy.
Assumed today date is 291014 (29-Oct-14).
CodeBehind:
DateTime inputDate;
// the WinForm allows user to input date not earlier than 2 years before today date and not more than 1 months from today date too.
//Assumed I input date as 261014 (26-Oct-14)
if(DateTime.TryParseExact(input, "ddMMyy", new System.Globalization.CultureInfo("en-US"), System.Globalization.DateTimeStyles.None, out inputDate)) {
DateTime minDate = DateTime.Now.AddMonths(-24);//Assumed it is 29-Nov-14
DateTime maxDate = DateTime.Now.AddMonths(1);//Assumed it is 29-Oct-12
I tried many methods but none works (I have checked many threads/forums also).
//Method 1
if(inputDate >= minDate && inputDate <= maxDate)
return true
//Method 2: B return true but A ***always*** return false, Why??
if (inputDate >= minDate)
A = true;
[code]....
I have a code that calculates the number of days between dates. It considers leap years and different days among months. The problem I have is when i debug the code nothing comes out.
Here is the code.
#include<iostream>
#include<fstream>
using namespace std;
bool wheep();
int daysinmonth();
bool wheep(int yr) {
if (yr % 400 == 0)
[Code] ....
this is the file its reading
1 7 9 1 10 9
I want to compare dates of first week of every year input by user to determine that what was the day on 02/01/1998 compare to 02/01/2014, or 04/01/2001 compare to 04/01/2003.
I want to compare from 01/01/1997 , 07/01/2014.
For example user enter first date 04/01/2002 and other date 04/01/2003, then the program show that there was tuesday on 04/01/2002 and monday on 04/01/2003.
[Code] ......
I have an assignment to write a program that will calculate the number of days between two dates (including leap years). We have to read the data from a file and in my current input file I have:
1 1 2000 1 5 2004
5 2 2005 2 5 2009
1 15 1998 1 15 2001
for testing purposes. When I run the program the console runs continuously spouting out "The days between your two dates are 1097." Which would be the correct output for the last set of dates entered, but I need to find out where I've messed up in my main.
#include <iostream>
#include <fstream>
using namespace std;
bool isLeap(int x) {
if (x % 400 == 0) {
[Code] .....
I want to retrieve the records selected between from_dt and to_dt and also the records of the selected date should be retrieved...
SELECT ChallanDtl.chalID, ChallanDtl.chalTo,
ChallanDtl.chalNo, ChallanDtl.chalDDate,
ChallanDtl.chalYourNo, ChallanDtl.chalPO_NO,
ChallanDtl.chalPO_Date,
ChallanSubDtl.chalsubdescription,
[Code] ...
I am not getting all the records.... when i select the same date in both datetimepicker no record is displayed... i also want the record of the selected dates from both datetime picker..
#include <functional>
using namespace std;
template<typename...Args>
void on(function<void(Args...)> f) {
function<void(Args...)> fn; // this line causes error C2059: syntax error : '<fake-expression>'
}
int main() {
function<void()> f;
on(f);
}
What's the difference between 'f' and 'fn'?
Code: enun{go, stop, ready, halt}
vs
enum status{go, stop, ready, halt}; and where is enumeration with name is benefficial.
size of int is 2 bytes and of short int is also 2 bytes.The range of values for int and short int are the same.
Then why int and short int are used? only int or short int is enough ....
Creating a C# program to prompt the user to choose the correct answer from a list of answer choices of a question and if the answer is wrong then try to prompt the same question again with do while loop but it is not working as it suppose to be.
class Program
{
static void Main(string[] args {
char UserChoice = ' ';
do {
Console.WriteLine("What is the command keyword to exit a loop in C#?");
Console.WriteLine("a.quit");
Console.WriteLine("b.continue");
[Code] ....
But if i use int instead of char in this program and replace a, b, c and d with 1, 2, 3 and 4 then this program work fine. What is wrong in this code when using char
#include<iostream>
using namespace std;
int main() {
double x,i;
cout<<"Enter the value of the number
[Code] ....
why I am not getting exact square root if I take x as double,but if I am taking it as int I got the correct result.
What is the difference between HAS-A and IS-A relationship?
View 7 Replies View RelatedI just wanted to know what's the difference between these two types of main functions:
Code: int main (int argc, char** argv){ ... }
Code: int main (int argc, char* argv[]){ ... }
I am new to programming.. What is the difference between structures and unions in C
View 2 Replies View RelatedOther than the theoretical difference between cout and cerr where the former puts values to the monitor and the latter puts values related to errors to the monitor, is there any real difference here? Why not use cout when you want to send anything to monitor? Why use cerr at all?
View 7 Replies View RelatedI just figured out that some std functions (for example: copy) need the resource and target objects have iterators to work. Otherwise, the compiler rejects. In case of two arrays, declared as:
double myA[100] = {};
array<double, 100> myB = {};
myA[0] is like a pointer, myB.begin() an iterator, if I do not make any mistake. So, what is exactly the difference between the pointer and the iterator here? They all give the access to elements.
If I need the target of copy to be an array like myA which cannot give an iterator, is there a way to make the command "copy" work for it?
What is the diff between strings and arrays? Here is sample:
By String:
#include <iostream>
#include <string>
using namespace std;
int main () {
string mystr;
[Code] .....
By arrays:
#include <iostream>
using namespace std;
int main () {
char name[256], title[256];
[Code] ....
which is preferable and can i pick characters one by one in string?
Similar to Pascal’s triangle, the difference triangle has some interesting properties that find applications in various fields of the natural and applied sciences. In simple terms, a difference triangle is a set of integers arranged in an inverted triangle where each inverted triangle triad has its lower element equal to the difference (absolute value) of the two elements in the upper row. A difference triangle can be created from a sequence of integers forming the uppermost row by iteratively taking differences between consecutive terms to form the next row until a single-element row is created.
Example Consider the sequence 5, 8, 13, 21, 34, 55 from the Fibonacci series as the uppermost row of the difference triangle. The difference between successive elements form a new set: 3 (= 8 – 5), 5 (= 13 – 8), 8 (= 21 – 13), 13 (= 34 – 21), and 21 (= 55 – 34). The process can then be repeated until there is only one element left giving the following difference triangle:
5 8 13 21 34 55
3 5 8 13 21
2 3 5 8
1 2 3
1 1
0
Problem Write a program that forms a difference triangle using a given series of numbers as topmost row.