5 Sep
2017
5 Sep
'17
2:41 p.m.
So we have some source (that you can have as well,
Apache license)
that handles not strings but vectors of strings (or structs or whatever).
I need to write up how it works, it's sort of clever. It stores both
the size of the vector (always a power of 2) in part of the bits of the
first entry and the actual length in the other part. Because we can
express powers of two in very little space we can support both values
in a 32 bit unsigned with a max length of used space of around 134M.
I have something similar. It allocates space for two ints (number
allocated and used) at ((int *)array)[-1] and [-2].
Typical use is
LTVectorAndInit(char *, names);
while(...)
LTVectorPush(names, s);
for(i=0; i<LTVectorCount(names); i++)
... names[i] ...;
LTVectorFree(names);
-- Richard
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