<< What's a vector here? I only know vectors from maths, where they are used
to describe a line in 3D space etc... ?>>
In C++, a "vector" is best described as a glorified array. It's an ill-chosen
name, IMO. A "valarray" is actually more like a math vector...
How about something like this for XBlockFile:
tyepdef map<unsigned long, entryType> entryMap;
// EntryMap holds a variable number of blocks of one type
typedef hashmap<char*, entryMap> blockTypeMap;
// blockTypeMap holds one entryMap for each block type
//in a MacOS resource manager style, you could say things like:
blockTypeMap topLevel;
entryMap menuMap;
entryType someEntry;
...
menuMap = topLevel["MENU"];
menuMap[128] = someEntry;
I chose a map instead of a hashmap for the "entryMap" type, because you can
iterate over maps (but not hashmaps).
You would need something like this to iterate through all of the entries of
one type:
unsigned long entryID;
entryType someEntry;
typedef entryMap::const_iterator CI;
for(CI iterator = menuMap.begin(); iterator != menuMap.end(); ++iterator) {
entryID = iterator->first;
someEntry = iterator->second;
}
I'm don't have the XBlockFile sources on hand, so I hope this is fairly
relevant and helpful.
Let me know how else I can help.
Oh, and I'm by no means a C++ stdlib expert, so input from others is welcome.
Brian
