ERRORCODE SplitArray::read(StorageDevicePtr device)
{
ERRORCODE error = ERRORCODE_None;
Array OldArray(OldSize());
if ((error = OldArray.read(device)) != ERRORCODE_None)
{
return error;
}
if ((error = set_array_size(OldArray.count())) != ERRORCODE_None)
{
return error;
}
LPBYTE lpOldData, lpNewData;
lpOldData = (LPBYTE)OldArray.get_element(0);
lpNewData = (LPBYTE)data;
for (int i = 0; i < OldArray.count(); i++)
{
memcpy(lpNewData, lpOldData, OldSize());
memset(lpNewData + OldSize(), 0, SizeDifference());
lpNewData += NewSize();
lpOldData += OldSize();
}
return error;
}
ERRORCODE Array::delete_element(SHORT which)
{
SHORT new_count;
/* Normalize. */
which -= first;
/* Validate the parameter. */
if (which < 0 || which >= element_count)
{
return ERRORCODE_BadParameter;
}
/* Move data down if we need to. */
new_count = element_count-1;
if (new_count != which)
{
LPSTR dst = ((LPSTR)data) + which*element_size,
src = dst + element_size;
/* "which" is not the last one. */
memcpy(dst, src, (new_count-which)*element_size);
}
/* Resize the array to take up less space. */
return set_array_size(new_count);
}
ERRORCODE Array::assign(const Array far &array)
{
ERRORCODE error;
/* Free any data we have. */
set_array_size(0);
/* Copy the static portion. */
first = array.first;
element_size = array.element_size;
/* Allocate the new data. */
if ((error = set_array_size(array.element_count)) == ERRORCODE_None
&& data != NULL
&& array.data != NULL)
{
/* Copy the data. */
memcpy(data, array.data, array_byte_size());
}
return error;
}
ERRORCODE Array::insert_element(VOIDPTR element, SHORT where)
{
SHORT old_count = element_count;
ERRORCODE error;
/* Normalize. */
where -= first;
/* Validate where. */
if (where < 0 || where > element_count)
{
return ERRORCODE_BadParameter;
}
/*
// Set the new array size.
// After this call, "element_count" will be set to the new size.
// Watch out!
*/
if ((error = set_array_size(element_count+1)) == ERRORCODE_None)
{
/* Move the data if need be. */
LPSTR new_slot = ((LPSTR)data) + where*element_size,
dst_slot = new_slot + element_size;
if (where != old_count)
{
/* Must move some data. Use the function which handles overlap. */
memmove(dst_slot, new_slot, (old_count - where)*element_size);
}
/* Insert the new element. */
memcpy(new_slot, element, element_size);
}
return error;
}
VOID Array::empty_array()
{
set_array_size(0);
}