Compares due dates with coledatetime

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How can I understand if a date is bigger then an other? I have thwo dates in ColeDateTime.

What I have tried:

I tried:
ColeDateTime t1;
ColeDateTime t2;

t1>t2;

Posted 7-Oct-21 5:49am

Member 14594285

Updated 8-Oct-21 7:59am

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PIEBALDconsult 7-Oct-21 11:53am

"Bigger"? No. "Later"? Maybe.
Doesn't that work?

Member 14594285 7-Oct-21 11:59am

yes later, sorry..

KarstenK 7-Oct-21 12:02pm

write a clear answer to close that q&a

Member 14594285 7-Oct-21 12:04pm

I must understand if date1 is later then an other, if I write date1>date2 it doesn't work.

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Richard MacCutchan · Answer 1 · 2021-10-07T06:05:00

Solution 1

~~There is no overload of the greater than operator ibn~~

See COleDateTime Class | Microsoft Docs[^] for details of the comparison operators.

Posted 7-Oct-21 6:05am

Richard MacCutchan

Updated 8-Oct-21 22:24pm

v3

Comments

merano99 7-Oct-21 18:17pm

If I understand the linked documentation correctly, there are COleDateTime Relational Operators

bool operator==(const COleDateTime& date) const throw();
bool operator!=(const COleDateTime& date) const throw();
bool operator<(const COleDateTime& date) const throw();
bool operator>(const COleDateTime& date) const throw();
bool operator<=(const COleDateTime& date) const throw();
bool operator>=(const COleDateTime& date) const throw();

Richard MacCutchan 8-Oct-21 3:46am

Sorry, I misread the documentation.

Member 14594285 8-Oct-21 3:31am

I wrote:
COleDateTime aa;
COleDateTime bb;
int t;
aa.SetDate(01, 02, 2021);
aa.SetTime(0, 0, 0);
bb.SetDate(02, 02, 2021);
bb.SetTime(0, 0, 0);

aa.GetStatus();
bb.GetStatus();

BOOL b1;
BOOL b2;
BOOL b3;
b1 = aa == bb; // TRUE
b2 = aa < bb; // FALSE
b3 = aa > bb; //FALSE

so values of b1,b2,b3 are incorrect

merano99 8-Oct-21 14:00pm

Ok. Then see my solution.

merano99 9-Oct-21 4:09am

I don't see any reason to cross out the entire solution.
The correct spelling of COleDateTime and the link to the documentation are important parts of the solution.

Richard MacCutchan 9-Oct-21 4:24am

Fair comment, answer updated.

merano99 · Answer 2 · 2021-10-08T07:59:00

Member 14594285 wrote:

C++

COleDateTime aa;
aa.SetDate(01, 02, 2021);

You should always check return values, an read the docu.
If you look at the docu you see this:

C++

int SetDate( int nYear, int nMonth, int nDay) throw();

Obviously, it has to go grossly wrong.

And if you had at least evaluated the return value
here of course the error is also visible.

C++

int ret = aa.SetDate(01, 02, 2021);
if(ret != 0) ...