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//+-------------------------------------------------------------------------
//
// Function: GetNumberOfType
// SetNumberOfType
//
// Synopsis: Helpers to get/set an integer value of given variant type
// by dereferencing a pointer
//
// pv - pointer to dereference
// vt - variant type
//
//--------------------------------------------------------------------------
// BUGBUG: The VC 5 compiler flags this as an error because VT_BOOL4 is not
// a valid VARENUM value. Disable the warning for now.
#pragma warning(disable:4063) // case '254' is not a valid value for switch of enum 'VARENUM'
long
GetNumberOfType (void * pv, VARENUM vt)
{
switch(vt)
{
case VT_I2:
case VT_BOOL:
return * (SHORT*) pv;
case VT_I4:
case VT_BOOL4:
return * (LONG*) pv;
default:
Assert(FALSE);
return 0;
}
}
void
SetNumberOfType (void * pv, VARENUM vt, long l)
{
switch(vt)
{
case VT_BOOL:
l = l ? VB_TRUE : VB_FALSE;
// vvvvvvvvvvv FALL THROUGH vvvvvvvvvvvvv
case VT_I2:
Assert(l >= SHRT_MIN && l <= SHRT_MAX);
* (SHORT*) pv = SHORT(l);
break;
case VT_BOOL4:
l = l ? VB_TRUE : VB_FALSE;
// vvvvvvvvvvv FALL THROUGH vvvvvvvvvvvvv
case VT_I4:
* (LONG_UNALIGNED *) pv = l;
break;
default:
Assert(FALSE);
}
}