Re: COleDateTime::GetCurrentTime() problem

You are right, it has to do with altering floating point processor settings.
Using the flag D3DCREATE_FPU_PRESERVE when creating the Direct3D device
solves the problem.

Searching the newsgroups it appears that others have also suffered
from this problem :(

If you've not done so, I think it'd be worthwhile submitting a bug
report on it (and the solution) to ensure MS are aware of the problem
- and so they can come up with some solution in the future, even if
that's only documenting the fact that something as innocuous as
COleDateTime::GetCurrentTime() can fail because of the floating point
settings.

FWIW, I can now repro the problem with this simple test:

#include "stdafx.h"
#include <ATLComTime.h>
#include <float.h>

int _tmain(int argc, _TCHAR* argv[])
{
unsigned int cw;

_controlfp_s( &cw, _PC_24, _MCW_PC );

const COleDateTime dtNow = COleDateTime::GetCurrentTime();

if ( dtNow.m_status == COleDateTime::invalid )
{
return 1;
}

return 0;
}


Dave
.

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