[OSM-dev] Binary OSM; the first pass encoder

[Stefan de Konink]

Chris Browet wrote:
> UTF16 is just the default for Qt strings ;-) wchar* is UTF16, too. There 
> definitely are UTF characters used, so char* is probably too 
> restrictive, unless you handle UTF yourself.

But like char* utfX is terminated by \0 too right? And is backwards 
compatible?

> ATM, my region size is ~1 km², which creates files, strings included, of 
> 500kb to 1Mb. Decision is to be made whether it is useful to handle 
> diffs rather than downloading the full region.
> Obviously, if the goal is to have a full up-to-date planet, this is not 
> viable. It is manageable this way up to the state/province level, I think.

True.

>     - Use separate files for strings and indices.
> 
> 
> Problem with this is that you will have one huge string file (if that's 
> what you mean), which will have to be loaded in memory

mmaping this file the memory allows the OS to make that decision.


Stefan