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BRZ algorithm is almost stable

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fc_botelho
2005-07-29 18:29:30 +00:00
parent f5dc722c54
commit 2fa5457c27
4 changed files with 179 additions and 67 deletions
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7
src/bmz.c
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@@ -368,12 +368,15 @@ static void bmz_traverse(bmz_config_data_t *bmz, cmph_uint8 * used_edges, cmph_u
{
graph_iterator_t it = graph_neighbors_it(bmz->graph, v);
cmph_uint32 neighbor = 0;
cmph_uint32 gvalue;
while((neighbor = graph_next_neighbor(bmz->graph, &it)) != GRAPH_NO_NEIGHBOR)
{
if(GETBIT(visited,neighbor)) continue;
DEBUGP("Visiting neighbor %u\n", neighbor);
*unused_edge_index = next_unused_edge(bmz, used_edges, *unused_edge_index);
bmz->g[neighbor] = *unused_edge_index - bmz->g[v];
if(*unused_edge_index < bmz->g[v]) gvalue = *unused_edge_index + bmz->m;
else gvalue = *unused_edge_index;
bmz->g[neighbor] = gvalue - bmz->g[v];
SETBIT(visited, neighbor);
(*unused_edge_index)++;
bmz_traverse(bmz, used_edges, neighbor, unused_edge_index, visited);
@@ -530,7 +533,7 @@ cmph_uint32 bmz_search(cmph_t *mphf, const char *key, cmph_uint32 keylen)
DEBUGP("key: %s h1: %u h2: %u\n", key, h1, h2);
if (h1 == h2 && ++h2 > bmz->n) h2 = 0;
DEBUGP("key: %s g[h1]: %u g[h2]: %u edges: %u\n", key, bmz->g[h1], bmz->g[h2], bmz->m);
return bmz->g[h1] + bmz->g[h2];
return ((bmz->g[h1] + bmz->g[h2]) % bmz->m);
}
void bmz_destroy(cmph_t *mphf)
{