C / C++ / MFC

Mark Salsbery wrote:

has a limit

Mark Salsbery wrote:

What are you trying to do?

Mark Salsbery wrote:

What are you trying to do?

Maxwell Chen wrote:

I saw your reply in that thread, but my _finite always returns 1 with any input!

    double dbInf = 1.0 / sin((double)0);
    int a = _finite(dbInf);

   // a should be 0 

Mark Salsbery
Microsoft MVP - Visual C++

Maxwell Chen wrote:

I'll be back!

Maxwell Chen wrote:

but my _finite always returns 1 with any input!

Return Value<br />
<br />
_finite returns a nonzero value if its argument x is not infinite; that is, if –INF < x < +INF. It returns 0 if the argument is infinite or a NAN.<br />

El Corazon wrote:

-INF < (1.0/3.0) < +INF is true.

Maxwell Chen wrote:

You are right! I confused it with irrational numbers.

<br />
0.33333334326744080000 (float)<br />
0.33333333333333331000 (double)<br />

littleGreenDude wrote:

is there a typical way that this is handled?

littleGreenDude wrote:

Is there a dirty flag for property pages? In other words what, or how does a property page communicate to its parent that it is dirty(data has changed)?

m_pSet->SetFieldNull(&m_pSet->m_ProductUse, FALSE);<br />
m_pSet->SetFieldDirty(&m_pSet->m_ProductUse, TRUE);

void cPgInvGenInfo::OnChkReceiving() <br />
{<br />
	m_pSet->SetFieldNull(&m_pSet->m_ProductUse, FALSE);<br />
	m_pSet->SetFieldDirty(&m_pSet->m_ProductUse, TRUE);<br />
<br />
	if( ((CButton*)GetDlgItem(IDC_CHK_RECEIVING))->GetCheck() )<br />
		m_pSet->m_ProductUse |= 00000010;<br />
	else<br />
		m_pSet->m_ProductUse &= 11111101;<br />
}

void cPgInvGenInfo::OnChkOrdering() 
{
    SetModified();
}
 
void cPgInvGenInfo::OnChkReceiving() 
{
    SetModified();
}
 
void cPgInvGenInfo::OnChkCounting() 
{
    SetModified();
}
 
void cPgInvGenInfo::OnOK() 
{
    // save canges to record set
}

explicit CDialog(
   LPCTSTR lpszTemplateName,
   CWnd* pParentWnd = NULL 
);
explicit CDialog(
   UINT nIDTemplate,
   CWnd* pParentWnd = NULL 
);