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4 Commits
Author SHA1 Message Date
David Herrmann a933570dea bitmap: avoid 32bit integer overflow in shift 
We really must use 64bit integers to calculate long-long shifts.
Otherwise, we will never get higher masks than 2^31.
 2015-07-17 12:19:06 +02:00
David Herrmann 22cedfe15f bitmap: allow bitmap_iterate() on NULL bitmap 
Make sure we properly treat NULL bitmaps as empty. Right now, we don't
(which really looks like a typo).
 2015-07-17 12:18:13 +02:00
Tom Gundersen cb57dd4159 bitmap: use external iterator 
Reuse the Iterator object from hashmap.h and expose a similar API.

This allows us to do

{
    Iterator i;
    unsigned n;

    BITMAP_FOREACH(n, b, i) {
        Iterator j;
        unsigned m;

        BITMAP_FOREACH(m, b, j) {
            ...
        }
    }
}

without getting confused. Requested by David.
 2015-07-16 14:11:12 +02:00
Tom Gundersen 5ffa42cb80 basic: add a Bitmap implementation 
For when a Hashmap is overkill.
 2015-07-14 21:53:10 +02:00