1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
|
/* ISC license. */
#include <skalibs/bitarray.h>
#include <skalibs/functypes.h>
#include <skalibs/gensetdyn.h>
unsigned int gensetdyn_iter (gensetdyn *g, iterfunc_t_ref f, void *stuff)
{
/*
XXX: we may be called by a freeing function, so we cannot alloc -
XXX: so pray that the bitarray fits in the stack.
*/
unsigned char bits[bitarray_div8(g->storage.len)] ;
unsigned int i = 0, j = 0, n = 0, m = gensetdyn_n(g) ;
register unsigned int *fl = genalloc_s(unsigned int, &g->freelist) ;
register unsigned int sp = genalloc_len(unsigned int, &g->freelist) ;
bitarray_setn(bits, 0, g->storage.len) ;
for (; i < sp ; i++) bitarray_clear(bits, fl[i]) ;
for (i = 0 ; (i < g->storage.len) && (j < m) ; i++) if (bitarray_peek(bits, i))
{
j++ ;
if ((*f)(gensetdyn_p(g, i), stuff)) n++ ;
}
return n ;
}
|
