From: Frank Birbacher (bloodymir.crap_at_[hidden])
Date: 2007-09-03 18:30:44
Hi!
Benjamin Collins schrieb:
> class window_manager {
> public:
> struct iterator {
> operator++() {
> if(current_ptr+1 >= current_map_end)
> // remap file to the next block, re-adjust pointers
> }
>
> operator--() {
> if(current_ptr-1 <= current_map_begin)
> // remap file to the previous block, re-adjust pointers
> }
How is that different from using "buffers"? The regular std::fstream
shows just this behavior: when reading it fills a buffer; when the end
of the buffer is reached it loads the next part of the file into memory,
and so on. The only difference is that writing to a memory location does
not implicitly change the file content. But do you need this kind of
random access for writing?
Frank