ParseExact - parsing a date with a given format in C++ / MFC

[Software_Developer]

Richard pointed out using strftime( ) . it is standard C.

#include
#include

int main ()
{
time_t rawtime;
struct tm * timeinfo;
char buffer [80];

time ( &rawtime );
timeinfo = localtime ( &rawtime );

strftime (buffer,80,"%Y %m %d ",timeinfo);

puts (buffer);

return 0;
}

[BadJerry]

Yes but I want to parse not to format! Thanks! Jerry

[Lost User]

My apologies, I got mixed up, and cannot for the life of me recall the function that does the parsing. [edit] It's strptime() which, unfortunately, is not available in Windows, so you will need to get a copy of an open source version from somewhere. [/edit]

One of these days I'm going to think of a really clever signature.

[krmed]

You can still use the ParseDateTime, but you need to set the format first. Here's what I've done... First, get the current format using

GetLocaleInfo(m\_LCID, LOCALE\_SSHORTDATE, m\_csOriginalSDateFormat.GetBuffer(MAX\_PATH + 1), MAX\_PATH);
m\_csOriginalSDateFormat.ReleaseBuffer();

(m_csOriginalSDateFormat is a CString) Next have your own CString with the desired format:

m_csNewSDateFormat = _T("M/d/yyyy");

Now, set the desired format, parse the date/time, and restore the original format:

SetLocaleInfo(m_LCID, LOCALE_SSHORTDATE, m_csNewSDateFormat);
oleStartTime.ParseDateTime(csDateTime);
SetLocaleInfo(m_LCID, LOCALE_SSHORTDATE, m_csOriginalSDateFormat);

Hope this helps.

Karl - WK5M PP-ASEL-IA (N43CS) PGP Key: 0xDB02E193 PGP Key Fingerprint: 8F06 5A2E 2735 892B 821C 871A 0411 94EA DB02 E193

[Software_Developer]

My mistake. Didn't notice that CStrings only compile in MFC.

char buffer[256];
CString cs = buffer;

CString Management[^]

[BadJerry]

That's clever!

[Software_Developer]

*FACEPALM* COleDateTime::Format MSDN[^]

COleDateTime t(1999, 3, 19, 22, 15, 0);

CString str = t.Format(_T("%A, %B %d, %Y"));

[BadJerry]

Thanks again... but this is to return a string with a format... What I wanted is to parse a string into a date with a format! Something like

COleDatetime t;
t.IsThisStringADateWithThisFormat(_T("10012012"),"ddMMyyyy");

But I have managed (see my post above)! Thanks anyway! Jerry

[jschell]

Richard MacCutchan wrote:

It's strptime() which, unfortunately, is not available in Windows

Very odd. Far as I can tell strptime is not part of ANSI C. Which makes me wonder why.

[Lost User]

It's POSIX according to the man page[^].

One of these days I'm going to think of a really clever signature.